Stata è un software statistico completo le cui potenzialità sono in grado di soddisfare un’ampia gamma di utenti accademici e professionali, in discipline quali economia, sociologia, psicologia, biostatistica, epidemiologia e altre. Stata include una vasta gamma di funzioni statistiche (vedi la sezione principali caratteristiche) e piene capacità di data management. E’ facile da usare per utenti alle prime armi, ma allo stesso tempo offre opzioni di programmazione sofisticate per gli utenti più esperti. Nuove potenzialità sviluppate e aggiornamenti ufficiali possono essere installati semplicemente tramite internet.
Stata è disponibile in tre diverse edizioni:
- Stata/IC è ideale per le banche dati di dimensione media
- Stata/SE permette di lavorare con banche dati molto più ampie rispetto a Stata/IC mentre
- Stata/MP è la versione più veloce, in grado di sfruttare le potenzialità di PC multiprocessori, inclusi Intel i3, i5, i7 Intel CoreTM Duo e AMD X2 dual-core, Xeon, e Celeron.
|Numero Massimo Variabili||120,000||32,767||2,048|
|Numero Massimo Matrici||10,998||10,998||798|
|Numero Massimo Osservazioni||fino a 20 Miliardi||2,14 Miliardi||2,14 Miliardi|
|Caratteri per Variabile Stringa||Fino a 244||Fino a 244||Fino a 244|
|Documentazione completa in formato PDF||Inclusa||Inclusa||Inclusa|
Section 508 compliance, accessibility for persons with disabilities, … more
Balanced and unbalanced designs, factorial, nested, and mixed designs, repeated measures, marginal means, contrasts, … more
Summaries, cross-tabulations, correlations, z and t tests, equality-of-variance tests, tests of proportions, confidence intervals, factor variables, … more
Thousands of built-in models, univariate and multivariate models, linear and nonlinear models, multilevel models, continuous, binary, ordinal, and count outcomes, bayes: prefix for 45 estimation commands, continuous univariate, multivariate, and discrete priors, add your own models, convergence diagnostics, posterior summaries, hypothesis testing, model comparison, … more
BINARY, COUNT, AND LIMITED OUTCOMES
Logistic, probit, tobit, Poisson and negative binomial, conditional, multinomial, nested, ordered, rank-ordered, and stereotype logistic, multinomial probit, zero-inflated and left-truncated count models, selection models, marginal effects, … more
Hierarchical clustering, kmeans and kmedian nonhierarchical clustering, dendrograms, stopping rules, user-extensible analyses, … more
CONTRASTS, PAIRWISE COMPARISONS AND MARGINS
Compare means, intercepts, or slopes, compare with reference category, adjacent category, grand mean, etc…orthogonal polynomials, multiple-comparison adjustments, graph estimated means and contrasts, interaction plots, … more
Data transformations, match-merge, import/export data, ODBC, SQL, Unicode, by-group processing, append files, sort, row–column transposition, labeling, save resultss, … more
27 manuals, 14,000+ pages, seamless navigation, thousands of worked examples, quick starts , methods and formulas, references, … more
EMBEDDED STATISTICAL COMPUTATIONS
Numerics by Stata, … more
Standardization of rates, case–control, cohort, matched case–control, Mantel–Haenszel, pharmacokinetics, ROC analysis, ICD-10, … more
Exact logistic and Poisson regression, exact case–control statistics, binomial tests, Fisher’s exact test for r × c tables, … more
FINITE MIXTURE MODELS (FMMs)
Fmm: prefix for 17 estimators, mixtures of a single estimator, mixtures combining multiple estimators or distributions, continuous, binary, count, ordinal, categorical, censored, truncated, and survival outcomes, … more
Statistical, random-number, mathematical, string, date and time, … more
GENERALIZED LINEAR MODELS (GLMs)
Ten link functions, user-defined links, seven distributions, ML and IRLS estimation, nine variance estimators, seven residuals, … more
GMM AND NONLINEAR REGRESSION
Generalized method of moments (GMM), nonlinear regression, … more
Lines, bars, areas, ranges, contours, confidence intervals, interaction plots, survival plots, publication quality, customize anything, Graph Editor, … more
GRAPHICAL USER INTERFACE
Menus and dialogs for all features, Data Editor, Variables Manager, Graph Editor, Project Manager, Do-file Editor, Clipboard Preview Tool, multiple preference sets, … more
IQ report for regulatory agencies such as the FDA, installation verification, … more
Ability to install new commands, web updating, web file sharing, latest Stata news, … more
IRT (ITEM RESPONSE THEORY)
Binary (1PL, 2PL, 3PL), ordinal, and categorical response models, item characteristic curves, test characteristic curves, item information functions, test information functions, differential item functioning (DIF), … more
Regression, censored outcomes, endogenous regressors, bootstrap, jackknife, and robust and cluster–robust variance, instrumental variables, three-stage least squares, constraints, quantile regression, GLS, … more
LINEARIZED DSGE MODELS
Specify models algebraically, solve models, estimate parameters, identification diagnostics, policy and transition matrices, IRFs, dynamic forecasts, … more
LATENT CLASS ANALYSIS
Binary, ordinal, continuous, count, categorical, fractional, and survival items, add covariates to model class membership, combine with SEM path models, expected class proportions, goodness of fit, predictions of class membership, … more
Random and fixed effects with robust standard errors, linear mixed models, random-effects probit, GEE, random- and fixed-effects Poisson, dynamic panel-data models, instrumental variables, panel unit-root testss, … more
Interactive sessions, large-scale development projects, optimization, matrix inversions, decompositions, eigenvalues and eigenvectors, LAPACK engine, real and complex numbers, string matrices, interface to Stata datasets and matrices, numerical derivatives, object-oriented programming, … more
MULTI-LEVEL MIXED EFFECT MODELS
Continuous, binary, count, and survival outcomes, two-, three-, and higher-level models, generalized linear models, nonlinear models, random intercepts, random slopes, crossed random effects, BLUPs of effects and fitted values, hierarchical models, residual error structures, DDF adjustments, support for survey data, … more
Nine univariate imputation methods, multivariate normal imputation, chained equations, explore pattern of missingness, manage imputed datasets, fit model and pool results, transform parameters, joint tests of parameter estimates, predictions, … more
Factor analysis, principal components, discriminant analysis, rotation, multidimensional scaling, Procrustean analysis, correspondence analysis, biplots, dendrograms, user-extensible analyses, … more
Nonparametric regression, Wilcoxon–Mann–Whitney, Wilcoxon signed ranks, and Kruskal–Wallis tests, Spearman and Kendall correlations, Kolmogorov–Smirnov tests, exact binomial CIs, survival data, ROC analysis, smoothing, bootstrapping, … more
OTHER STATISTICAL METHODS
Kappa measure of interrater agreement, Cronbach’s alpha, stepwise regression, tests of normality, … more
POWER AND SAMPLE SIZE
Power, sample size, effect size, minimum detectable effect, means, proportions, variances, correlations, ANOVA, regression, cluster randomized designs, case–control studies, cohort studies, contingency tables, survival analysis, balanced or unbalanced designs, results in tables or graphs, … more
PROGRAMMABLE MAXIMUM LIKELIHOOD
User-specified functions, NR, DFP, BFGS, BHHH, OIM, OPG, robust, bootstrap, and jackknife SEs, Wald tests, survey data, numeric or analytic derivatives, … more
Adding new commands, command scripting, object-oriented programming, menu and dialog-box programming, dynamic documents, Markdown, Project Manager, plugins, … more
RESAMPLING AND SIMULATION METHODS
Bootstrap, jackknife, Monte Carlo simulation, permutation tests, … more
SEM (STRUCTURAL EQUATION MODELING)
Graphical path diagram builder, standardized and unstandardized estimates, modification indices, direct and indirect effects, continuous, binary, count, ordinal, and survival outcomes, multilevel models, random slopes and intercepts, factor scores, empirical Bayes, and other predictions, groups and tests of invariance, goodness of fit, handles MAR data by FIML, correlated data, survey data, … more
SIMPLE MAXIMUM LIKELIHOOD
Specify likelihood using simple expressions, no programming required, survey data, standard, robust, bootstrap, and jackknife SEs, matrix estimators, … more
SPATIAL AUTOREGRESSIVE MODELS
Spatial lags of dependent variable, independent variables, and autoregressive errors, fixed and random effects in panel data, endogenous covariates, analyze spillover effects, … more
Multistage designs, bootstrap, BRR, jackknife, linearized, and SDR variance estimation, poststratification, DEFF, predictive margins, means, proportions, ratios, totals, summary tables, almost all estimators supported, … more
Kaplan–Meier and Nelson–Aalen estimators, Cox regression (frailty), parametric models (frailty, random effects), competing risks, hazards, time-varying covariates, left-, right-, and interval-censoring, Weibull, exponential, and Gompertz models, … more
TESTS, PREDICTIONS, AND EFFECTS
Wald tests, LR tests, linear and nonlinear combinations, predictions and generalized predictions, marginal means, least-squares means, adjusted means, marginal and partial effects, forecast models, Hausman tests, … more
ARIMA, ARFIMA, ARCH/GARCH, VAR, VECM, multivariate GARCH, unobserved-components model, dynamic factors, state-space models, Markov-switching models, business calendars, tests for structural breaks, threshold regression, forecasts, impulse–response functions, unit-root tests, filters and smoothers, rolling and recursive estimation, … more
TREATMENT EFFECTS/CAUSAL INFERENCE
Inverse probability weight (IPW), doubly robust methods, propensity-score matching, regression adjustment, covariate matching, multilevel treatments, endogenous treatments, average treatment effects (ATEs), ATEs on the treated (ATETs), potential-outcome means (POMs), continuous, binary, count, fractional, and survival outcomes, … more
User-written commands for meta-analysis, data management, survival, econometrics, … more
ERM = ENDOGENEITY
Combine endogenous covariates, sample selection, and endogenous treatment in models for continuous, binary, ordered, and censored outcomes, … more
LATENT CLASS ANALYSIS (LCA)
Discover and understand the unobserved groupings in your data. Use LCA’s model-based classification to find out
how many groups you have,
who is in those groups, and
what makes those groups distinct, … more
The new bayes: prefix command lets you fit Bayesian regression models more easily and fit more models. You could fit a Bayesian linear regression using bayesmh. But now you can fit it by typing
. bayes: regress y x1 x2
That is convenient. What you could not previously do was fit a Bayesian survival model. Now you can with bayes: streg. You can also fit multilevel models with, for instance, bayes: mixed and bayes: melogit. The new bayes: prefix can be used with 45 Stata maximum-likelihood commands.
All of Stata’s Bayesian features are supported by the new bayes: prefix command. You can select from many prior distributions for model parameters or use default priors. You can use the default adaptive Metropolis-Hastings sampling, or Gibbs sampling, or a combination of the two sampling methods, when available.
After estimation, you can use Stata’s standard Bayesian postestimation tools such as bayesgraph to check convergence, bayesstats summary to estimate functions of model parameters, bayesstats ic and bayestest model to compute Bayes’s factors and compare Bayesian models, and bayestest interval to perform interval hypotheses testing.
PRODUCE WORD® AND PDF DOCUMENTS EMBEDDING STATA RESULTS AND GRAPHS
It is now just as easy to produce Word® and PDF documents in Stata as it is to produce Excel® worksheets. Everybody loved putexcel in Stata 14. They will also love putdocx and putpdf.
The new commands work just like putexcel. That means you can write do-files to create entire Word or PDF reports containing the latest results, tables, and graphs. You can automate reproducible reports.
The new putdocx command writes paragraphs, images, and tables to a Word file or, to be precise about it, to Office Open XML (.docx) files. Just as with putpdf, images include Stata graphs, and you can format the objects.
The new putpdf command writes paragraphs, images, and tables to a PDF file. Images include Stata graphs and other images such as your organization’s logo. You can format the objects, too — bold face, italics, size, custom tables, etc.
MARKDOWN AND DYNAMIC DOCUMENTS
Markdown is a standard markup language that provides text formatting from plain text input. It was designed to be easily converted into HTML, the language of the web. Stata now supports it.
You can create HTML files from your Stata output, including graphs. You will start with a plain text file containing Markdown-formatted text and dynamic tags specifying instruction to Stata, such as run this regression or produce that graph. You then use the new dyndoc command to convert the file to HTML.
Want to produce TeX documents? With the new dyntext command, you can produce any text-based document!
LINEARIZED DYNAMIC STOCHASTIC GENERAL EQUILIBRIUM (DSGE) MODELS
Stata now fits linearized DSGE models, which are time-series models used in economics and finance. These models are an alternative to traditional forecasting models. Both attempt to explain aggregate economic phenomena, but DSGE models do this on the basis of models derived from microeconomic theory.
Being based on microeconomic theory means lots of equations. The key feature of these equations is that expectations of future variables affect variables today. This is one feature that distinguishes DSGEs from a vector autoregression or a state-space model. The other feature is that, being derived from theory, the parameters can usually be interpreted in terms of that theory.
After fitting a DSGE model, estat policy and estat transition can report the policy and transition matrices. You can produce forecasts using Stata’s existing forecast command, and you can graph impulse-response functions using Stata’s existing irf command.
FINITE MIXTURE MODELS
The new fmm: prefix command can be used with 17 Stata estimation commands to fit finite mixture models (FMMs). This means that with the fmm: prefix, we can now fit finite mixtures of regression models for continuous, binary, ordinal, count, categorical, and even survival-time outcomes.
The most typical use of fmm: is to fit one model and allow the parameters (coefficients, location, variance, scale, etc.) to vary across unobserved subpopulations. As with LCA, we call these unobserved subpopulations classes. Say we are interested in a linear regression and we believe there are three classes across which the parameters of the model might vary. Even though we have no variable recording the class membership, we can fit
. fmm 3: regress y x1 x2
Reported will be separate regression coefficients and intercepts for each class and a model for predicting membership in those classes.
In the same way, we can use fmm: logit for a binary outcome or fmm: streg for a survival-time outcome. fmm: can even be used with multiple estimation commands simultaneously when the classes might follow different models. fmm: (regress y x1 x2) (poisson y x1 x2 x3) fits a linear regression in one class and a Poisson regression in another.
Postestimation commands are available to 1) estimate each class’s proportion in the overall population; 2) report marginal means of the outcome variables within class; and 3) predict probabilities of class membership and predicted outcomes.
SPATIAL AUTOREGRESSIVE (SAR) MODELS
Stata now fits SAR models. SAR may stand for either spatial autoregressive or simultaneous autoregressive. Regardless of terminology, SAR models allow spatial lags of the dependent variable, spatial lags of the independent variables, and spatial autoregressive errors. Spatial lags are the spatial analog of time-series lags. Time-series lags are values of variables from recent times. Spatial lags are values from nearby areas.
SAR models are fit with the new commands spregress, spivregress (for endogenous covariates), and spxtregress (for panel data).
The models are appropriate for area (also known as areal) data. Observations are called spatial units and might be countries, states, districts, counties, cities, postal codes, or city blocks. Or they might not be geographically based at all. They could be nodes of social network. Spatial models estimate direct effects — the effects of areas on themselves — and estimate indirect or spillover effects — effects from nearby areas.
Stata provides a suite of commands for working with spatial data and a new [SP] manual to accompany them. When spatial units are geographically based, you can download standard-format shapefiles from the web that define the map. With a single command, you can make spillover effects proportional to the inverse distance between areas or restrict them to be just from neighboring areas. And you can create your own custom definitions of proximity.
INTERVAL-CENSORED SURVIVAL MODELS
Fit any of Stata’s six parametric survival models to interval-censored data. All the usual survival features are supported: stratified estimation, robust and clustered SEs, survey data, graphs, and more, … more
NONLINEAR MULTILEVEL MIXED – EFFECTS MODELS
your science …
your model …
nonlinear in its parameters
MIXED LOGIT MODELS: ADVANCED CHOICE MODELING
Do you walk to work, ride a bus, or drive your car? Which of three insurance plans do you buy? Which political party do you vote for?
We make dozens of choices every day. Researchers have access to gaggles of data about those choices. Mixed logit introduces random effects into choice modeling and thereby relaxes the IIA assumption and increases model flexibility.
When you know something matters.
But have no idea how.
BROWSE AND IMPORT DATA FROM FRED
The St. Louis Federal Reserve makes available over 480,000 U.S. and international economic and financial time series to registered users. Registering is free and easy to do. The service is called Federal Reserve Economic Data (FRED). FRED includes data from 85 sources, including the Federal Reserve, the Penn World Table, Eurostat, and the World Bank.
In Stata 15, you can use Stata’s GUI to access and download FRED data. You search or browse by category or release or source. You click to select series of interest. Select 1 or select 100. When you click on Import, Stata will download them and combine them into a single, custom dataset in memory.
These same features are also available from Stata’s command line interface. The command is import fred. The command is convenient when you want to automate updating the 27 different series that you are tracking for a monthly report.
Stata can access FRED and it can access ALFRED. ALFRED is FRED’s historical archive data.
New estimation command threshold fits threshold regressions. These are linear regressions in which the coefficients change by estimated thresholds. You have one set of coefficients before the first threshold, another set after the first and before the second, and so on. You can specify or estimate the number of threshold points.
The thresholds can be determined on the basis of time; thus threshold regressions are often fit to timeseries data.
Or thresholds can be determined on the basis of an exogenous variable. In that case, you would have a set of coefficients when x < the first threshold, another set after the first and before the second, and so on.
The lagged value of the dependent variable is an example of an exogenous variable. In that case, you would have a set of coefficients when l.y < the first threshold, another set after the first and before the second, and so on. This last case is known as the self-exciting threshold model.
BAYESIAN MULTILEVEL MODELS
PANEL DATA TOBIT
MULTILEVEL REGRESSION FOR INTERVAL-CENSORED DATA
MULTILEVEL TOBIT REGRESSION FOR CENSORED DATA
PANEL-DATA COINTEGRATION TESTS
TESTS FOR MULTIPLE BREAKS IN TIME SERIES
MULTIPLE-GROUP SEM FOR CONTINUOUS, BINARY, ORDERED, AND COUNT OUTCOMES
MULTIPLE-GROUP MULTILEVEL SEM
POWER ANALYSIS FOR CLUSTER RANDOMIZED DESIGNS
POWER ANALYSIS FOR LINEAR REGRESSION MODELS
HETEROSKEDASTIC LINEAR REGRESSION
STATA IN SWEDISH
POISSON WITH SAMPLE SELECTION
ZERO-INFLATED ORDERED PROBIT
ADD YOUR OWN POWER AND SAMPLE-SIZE METHODS
TRANSPARENCY ON GRAPHS
STREAM RANDOM-NUMBER GENERATOR
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2.8 Ownership. The Licensed Software, StataCorp Enhancements, and Documentation contain copyrighted material and other proprietary material and information of StataCorp and/or its licensors. StataCorp and/or its licensors shall retain all right, title, and interest, including all intellectual property rights, in and to the Licensed Software, StataCorp Enhancements, and Documentation. Customer will not remove, alter, or destroy any form of copyright notice, proprietary markings, or confidential legends placed upon or contained within the Licensed Software, StataCorp Enhancements, or Documentation, or any component thereof.
TECHNICAL SUPPORT AND UPGRADES AND UPDATES.
3.1 Technical Support. StataCorp agrees to provide Customer with technical support services which include periodic distribution of bug fixes and minor enhancements as Updates scheduled by StataCorp. All registered users of the then-current release of Stata and the previous release of Stata are eligible for free limited technical support. Installation support inquiries by telephone will be accepted by StataCorp during normal business hours. Technical support email inquiries are accepted at any time and will be answered during normal StataCorp business hours. StataCorp will attempt to respond to inquiries within the same business day. 3.2 Updates and Upgrades. To receive and use an Upgrade, Customer must pay the applicable fees for that Upgrade and agree to StataCorp’s standard terms and conditions governing the use of that Upgrade. If no such standard terms and conditions are stated by StataCorp, the terms of this Agreement shall apply and the Upgrade shall be deemed Licensed Software. StataCorp will issue a new Activation Key for the Upgrade. For a Single-User license, once StataCorp issues the new Activation Key for an Upgrade version, Customer shall be able to continue to use the prior version of the Licensed Software. For Network, Compute Server, and Student Lab licenses, once StataCorp issues the new Activation Key for an Upgrade, Customer shall be able to continue to use the prior version of the Licensed Software on the condition that the total, combined number of Concurrent Authorized Users who are using the Licensed Software (either the prior version, Upgrade, or both) does not exceed the specific number of Concurrent Authorized Users for which Customer has paid the applicable fee. For a Single-User license, technical support services are provided only for the Customer of the then-current version of the Licensed Software. For any other type of license selected by Customer (i.e., Network, Compute Server, or Student Lab), technical support services are provided only for the Authorized Users of the then-current version of the Licensed Software.
LIMITED WARRANTY; WARRANTY DISCLAIMER.
4.1 Limited Media Warranty. For thirty (30) days from the date of purchase, StataCorp warrants that the media on which the Licensed Software, StataCorp Enhancements, and Documentation is furnished shall be free from defects in material and faulty workmanship. Customer may return for replacement, without charge, any media that fails to meet this limited media warranty to StataCorp or the dealer from whom the Licensed Software (and StataCorp Enhancements) was purchased, as applicable, within the 30-day period. StataCorp or the applicable dealer will not be responsible for replacing any media that contains defects due to Customer’s misuse. THE FOREGOING IS CUSTOMER’S SOLE REMEDY, AND STATACORP’S SOLE OBLIGATION, WITH RESPECT TO A BREACH OF THE LIMITED MEDIA WARRANTY. 4.2 Performance Warranty. StataCorp represents and warrants for a period of 90 days from the date of the order that the Licensed Software substantially conforms to the functional specifications in the Stata 15 Reference Manual. StataCorp will repair or replace the Licensed Software if this warranty is breached unless it cannot do so within a reasonable period of time, then StataCorp will refund the fee paid for that license under the order (this Agreement will then terminate). Customer must notify StataCorp during the warranty period or 30 days after it ends of any alleged breach of the warranty. THIS SECTION CONTAINS CUSTOMER’S EXCLUSIVE REMEDY AND STATACORP’S SOLE LIABILITY FOR BREACH OF THIS WARRANTY. 4.3 No Disabling Code. With respect to the Licensed Software (including any Updates or Upgrades) and as of the date of delivery, StataCorp represents and warrants that (i) it has used commercially reasonable efforts consistent with industry standards to scan for and remove any software viruses, and (ii) it has not inserted any Disabling Code. “Disabling Code” means computer code inserted by StataCorp that is not addressed in the Documentation and that is designed to delete, interfere with, or disable the normal operation of the Products. This Disabling Code warranty does not apply to StataCorp passwords necessary for the operation of the Licensed Software, to the Licensed Software’s Activation Key requirement, or for any use by Customer outside the scope of the license. 4.4 No Warranty. EXCEPT FOR THE WARRANTIES ABOVE, THE LICENSED SOFTWARE, DOCUMENTATION, AND SUPPORT SERVICES ARE PROVIDED TO CUSTOMER ON AN ‘AS IS’ AND ‘WHERE IS’ BASIS AND WITHOUT WARRANTY OF ANY TYPE OR KIND. STATACORP HEREBY EXPRESSLY DISCLAIMS AND EXCLUDES ON BEHALF OF ITSELF AND ITS LICENSORS ALL WARRANTIES AND CONDITIONS, WHETHER STATUTORY, EXPRESS, IMPLIED, OR OTHERWISE, WITH RESPECT TO THE LICENSED SOFTWARE AND SUPPORT SERVICES, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF THIRD PARTY RIGHTS.
TERM AND TERMINATION.
5.1 Term. Except for Customers with a fixed-term License Period, this Agreement shall commence on the Effective Date and shall continue in effect until terminated as set forth below. If the License Period is for a fixed term, this Agreement will commence on the Effective Date and shall continue until the earlier to occur of the expiration of the License Period or the termination of this Agreement as set forth below. In the case of additional Concurrent Authorized Users who are authorized and added after the initial License Fee payment, the term of their usage of the Licensed Software shall be coterminous with the preexisting then-current term. If Customer purchases an Upgrade, the term of the Agreement shall be the specific term set forth in the new License and Activation Key issued for the Upgrade. 5.2 Termination. Customer may terminate this Agreement at any time upon thirty (30) days’ prior written notice to StataCorp. StataCorp may terminate this Agreement immediately without notice if Customer breaches any term of this Agreement, including, without limitation, breaching the scope of the license granted or confidentiality obligations under this Agreement. 5.3 Effect of Expiration or Termination. Upon expiration or termination of this Agreement, (i) the rights and licenses granted to Customer pursuant to this Agreement shall automatically and immediately terminate and (ii) Customer shall immediately cease using the Licensed Software. In addition, for a fixed-term License Period, upon expiration of the License Period, the Activation Key will expire and the Licensed Software will cease to function. Sections 2.5, 2.6, 2.7, 2.8 4.4, 5.3, 7, 8, 9, 10, and 11 of this Agreement shall survive any expiration or termination of this Agreement.
FEES AND PAYMENT.
6.1 Fees and Payment Terms. Customer licenses the Licensed Software from StataCorp. This Agreement is between Customer and StataCorp solely. The applicable License Fee is specified on the StataCorp Website or in the specific price proposal provided by StataCorp or an Authorized Reseller. The payment terms and conditions for the License Fee payable to StataCorp are specified on the StataCorp invoice or in the specific price proposal provided by StataCorp. The payment terms and conditions for the License Fee payable to an Authorized Reseller are as specified by the specific Authorized Reseller. All fees paid to StataCorp are non-refundable except as explicitly permitted from time to time on the StataCorp Website. StataCorp may terminate this Agreement and invalidate Customer’s Activation Key if the billing or contact information is false, fraudulent, or invalid. Customer will pay all taxes, including sales, use, personal property, value-added, excise, customs fees, import duties, stamp duties, and any other similar taxes and duties, including penalties and interest, imposed by any United States federal, state, provincial, or local government entity or any non-U.S. government entity on the transactions contemplated by this Agreement, excluding taxes based upon StataCorp’s net income. 6.2 Additional Concurrent Authorized Users Fee. During the License Period, Customer shall pay to StataCorp or the specific Authorized Reseller the then-current rate for any licenses for additional Concurrent Authorized Users. This fee shall be charged or invoiced to Customer on the date such additional Concurrent Authorized Users are added to Customer’s account. 6.3 Concurrent Authorized User Accounting. Customer shall maintain business practices and records necessary to manage the number of Concurrent Authorized Users and compliance with the terms of this Agreement. StataCorp has the right to request usage reports during the License Period and Customer will provide such a report within 30 days of request. If StataCorp determines that Customer has more Concurrent Authorized Users than Customer has paid for, Customer shall immediately pay StataCorp the applicable additional fees.
Customer and StataCorp agree to maintain the confidentiality of any confidential or proprietary information of one party (the “disclosing party”) received by the other party (the “receiving party”) during the term of, or prior to entering into, this Agreement that the receiving party should know is considered confidential or proprietary by the disclosing party based on the circumstances surrounding the disclosure, including, without limitation, non-public technical and business information (“Confidential Information”). The Licensed Software is copyrighted and shall be deemed StataCorp’s Confidential Information. The Documentation is copyrighted material of StataCorp. This section shall not apply to any information that is or becomes publicly available through no breach of this Agreement by the receiving party or is independently developed by the receiving party without access to or use of the Confidential Information of the disclosing party. The foregoing confidentiality obligations will not restrict either party from disclosing Confidential Information of the other party pursuant to the order or requirement of a court, administrative agency, or other governmental body, provided that the party required to make such a disclosure gives reasonable notice to the other party to enable the other party to seek a protective order or otherwise limit such disclosure. The receiving party of any Confidential Information of the disclosing party agrees not to use the disclosing party’s Confidential Information for any purpose except as necessary to fulfill its obligations and exercise its rights under this Agreement. The receiving party shall protect the secrecy of and avoid disclosure and unauthorized use of the disclosing party’s Confidential Information with no less than reasonable care. All the disclosing party’s information remains the property of the disclosing party.
LIMITATION OF LIABILITY.
8.1 Consequential Damages Waiver. IN NO EVENT SHALL STATACORP OR ITS LICENSORS HAVE ANY LIABILITY FOR ANY INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE DAMAGES ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT, REGARDLESS OF THE FORM OF THE ACTION, WHETHER IN CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT PRODUCT LIABILITY, OR OTHERWISE, EVEN IF ANY REPRESENTATIVE OF STATACORP HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF THIS AGREEMENT OR ANY LIMITED REMEDY HEREUNDER. 8.2 Limitation of Damages. IN NO EVENT SHALL STATACORP’S LIABILITY ARISING OUT OF OR RELATED TO THIS AGREEMENT EXCEED: (I) IF THE LICENSED SOFTWARE IS LICENSED FROM STATACORP DIRECTLY, THE LICENSE FEES PAID BY CUSTOMER TO STATACORP FOR THE LICENSED SOFTWARE, OR (II) IF THE LICENSED SOFTWARE IS LICENSED THROUGH AN AUTHORIZED RESELLER, THE LICENSE FEES PAID BY CUSTOMER TO THE APPLICABLE AUTHORIZED RESELLER, AS APPLICABLE. IN NO EVENT WILL STATACORP’S LICENSORS HAVE ANY LIABILITY FOR ANY CLAIM ARISING IN CONNECTION WITH THIS AGREEMENT. 8.3 Limitation of Remedies. THE PARTIES AGREE THAT THESE LIMITATIONS SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF THIS AGREEMENT OR ANY LIMITED REMEDY HEREUNDER.
U.S. GOVERNMENT CUSTOMERS.
The Licensed Software under this Agreement is “commercial computer software” as that term is described in DFAR 252.227-7014(a)(1). If acquired by or on behalf of a civilian agency, the U.S. Government acquires this commercial computer software and/or commercial computer software documentation subject to the terms and this Agreement as specified in 48 C.F.R. 12.212 (Computer Software) and 12.111(Technical Data) of the Federal Acquisition Regulations (“FAR”) and its successors. If acquired by or on behalf of any agency within the Department of Defense (“DOD”), the U.S. Government acquires this commercial computer software and/or commercial computer software documentation subject to the terms of this Agreement as specified in 48 C.F.R. 227.7202 of the DOD FAR Supplement and its successors.
The World Health Organization (WHO) ICD-10 codes are provided as part of the Licensed Software with the expressed permission and direction of the WHO. The use of ICD-10 with Licensed Software does not imply any endorsement of Licensed Software by WHO. The ICD-10 codes shall not be amended, abridged, translated, deleted or in any way changed without the consent of WHO. The ICD-10 codes are for the use of Authorized User. They are not to be reproduced, transmitted or distributed outside of Authorized User’s organization in any form or by any means except in summary results of analyses. ICD-10 is distributed without warranty of any kind, either express or implied. In no event shall the World Health Organization be liable for damages, including any general, special, incidental, or consequential damages, arising out of the use of ICD-10.
Except as expressly provided herein, Customer may not assign or transfer any of its rights under this Agreement (including its licenses with respect to the Licensed Software and Documentation) without the prior written consent of StataCorp. Unless the Customer is required by statute or regulation to apply the law of a state other than Texas, this Agreement will be governed by and construed in accordance with the laws of the State of Texas and the federal U.S. laws applicable therein, excluding any conflicts of law provisions, and the Customer and StataCorp agree to submit to the personal and exclusive jurisdiction of the courts located in Harris County, Texas. If the statute or regulation applying to the Customer requires the application of a law of a state other than Texas, the parties agree that the terms of this Agreement shall be governed and construed in accordance with the law specified in such statute or regulation, and the Customer shall give written notice of such requirement to StataCorp. The application of such different law shall be effective upon the receipt of such written notice by StataCorp. The parties agree that the United Nations Convention on Contracts for the International Sale of Goods will not apply to this Agreement. The failure of either party to require performance by the other party of any provision hereof shall not affect the full right to require such performance at any time thereafter, nor shall the waiver by either party of a breach of any provision hereof be taken or held to be a waiver of the provision itself. If any provision of this Agreement is found void and unenforceable, it will be replaced to the extent possible by StataCorp with a provision that comes closest to the meaning of the original provision. This Agreement and the documents referenced in this Agreement constitute the entire agreement between Customer and StataCorp relating to its subject matter and all terms herein and supersede all prior or contemporaneous agreements or understandings. This Agreement may be modified or changed only in writing signed by authorized representatives of Customer and StataCorp. Notices hereunder shall be in writing and addressed to Customer at the address provided when purchasing this license or, in the case of StataCorp, when addressed to StataCorp LLC, Attn: Director of Operations, 4905 Lakeway Drive, College Station, Texas 77845, USA.
|Piattaforma||Windows 7, 8, 10, Windows Server 2016, 2012, 2008, 2003
Mac 64-bit Intel® (Core™2 Duo) e il sistema operativo macOS 10.9 o più recente
Unix, Any 64-bit (x86-64 or compatible) or 32-bit (x86 or compatible) running Linux
|Windows 7, 8, 10, Windows Server 2016, 2012, 2008, 2003
Mac 64-bit Intel® (Core™2 Duo) e il sistema operativo macOS 10.9 o più recente
Unix, Any 64-bit (x86-64 or compatible) or 32-bit (x86 or compatible) running Linux
|Windows 7, 8, 10, Windows Server 2016, 2012, 2008, 2003
Mac 64-bit Intel® (Core™2 Duo) e il sistema operativo macOS 10.9 o più recente
Unix, Any 64-bit (x86-64 or compatible) or 32-bit (x86 or compatible) running Linux
|RAM||4 GB||2 GB||1 GB|
|Spazio su Disco Fisso||1 GB||1 GB||1 GB|
Altre Richieste Hardware :
Stata per Unix richiede una scheda video in grado di visualizzare almeno un migliaio di colori (16-bit o 24-bit colore)
Considerato l’importante valore aggiunto, suggeriamo la sottoscrizione del Contratto di Manutenzione che, garantendo l’aggiornamento gratuito in caso di uscita di nuova release e il Supporto Tecnico della casa madre nonché della TStat sia on line sia tramite posta elettronica, consente all’utente di pianificare al meglio il proprio budget di spesa e di rimanere sempre aggiornato con la versione del Software.
Il Convegno rappresenta un importante punto di riferimento fra gli utenti di Stata e un’occasione unica di scambio interdisciplinare. Sono infatti graditi sia contributi metodologici, sia analisi applicate in diversi campi di ricerca, nuovi comandi scritti dagli utenti, nonché disparate applicazioni in Economia, Biostatistica, Scienze Sociali, Psicologia e gestione dei dati.
Le pubblicazioni della Stata Press sono potenti strumenti per l’apprendimento non solo di particolari metodologie statistiche ma anche di come utilizzare il Software Stata nel modo più efficiente. I testi illustrano passo per passo l’applicazione in Stata di metodi di analisi sviluppati in vari campi di ricerca e sono un importante supporto di approfondimento per tutti gli utenti.
Al contrario di un corso di formazione di tipo tradizionale, dove gli iscritti devono frequentare il corso di persona, i NetCourse della StataCorp si svolgono completamente on-line dove gli iscritti entrano a far parte di un circuito chiuso di posta elettronica. I NetCourse sono quindi più facilmente accessibili dal punto di vista logistico ed economico rispetto ai corsi di tipo tradizionale. Inoltre la struttura dei corsi è molto più flessibile, dato che non ci sono vincoli d’orario. Normalmente i corsi sono divisi fra alcune sessioni; all’inizio di ogni sessione, gli iscritti ricevono tutto il materiale rilevante: dispense; risposte alle domande e soluzioni dagli esercizi fatti nella sessione precedente. Fra le sessioni c’è un periodo di interruzione che permette agli iscritti di: ripassare le precedenti lezioni; fare alcuni esercizi relativi alla materia dell’ultima sessione; discutere problemi/idee con gli altri partecipanti e il responsabile del corso. Alla fine del corso, il circuito di posta elettronica rimane aperto per un periodo predefinito per permettere discussioni fra i partecipanti e il responsabile.
Stata Journal è una rivista scientifica che contiene articoli recensiti relativi a Stata e sul software scritti dall’utente Stata. Stata Journal è incluso negli indici di citazioni scientifiche.
STATA USERS LIST- ‘THE STATA LISTSERVER’
Lo Statalist è un forum gestito dagli utenti di Stata tramite il quale tutti gli utenti, a partire dai neofiti ai più esperti, possono scambiare le informazioni, mantenendo un interessante e sempre acceso dialogo sulla statistica e su Stata. Per seguire il Forum è necessario registrarsi (gratuitamente) a: http://www.statalist.org/forums/register
Archivi dello Statalist
Il Boston College Statistical Software Components Archive (SSC), coordinato da Christopher Baum (email@example.com) contiene tutti gli scambi di programmi completi o comandi scritti dagli utenti Stata dello Statalist. L’archivio contiene anche script e programmi di altri Software statistici e matematici, ed è possibile reperire tutti i contenuti tramite: i) IDEAS, presso l’Università del Quebec, Canada; e ii) EconPapers, presso la Scuola di Economia di Stoccolma (che può fornire un accesso più rapido agli utenti in Europa)
Per tutti coloro che desiderano approfondire l’utilizzo di Stata attraverso una serie di brevi Video Tutorial on-line.
Aggiornare gli updates ufficiali, comandi scritti da utenti di Stata ecc.
© Copyright StataCorp LLC 1996-2017
+Stata è un software statistico completo le cui potenzialità sono in grado di soddisfare un’ampia gamma di utenti accademici e professionali, in discipline quali economia, sociologia, psicologia, biostatistica, epidemiologia e altre. Include una vasta gamma di funzioni statistiche (vedi la sezione principali caratteristiche) e piene capacità di data management. E’ facile da usare per utenti alle prime armi, ma allo stesso tempo offre opzioni di programmazione sofisticate per gli utenti più esperti.
Analisi di Sopravvivenza: dal Modello di Cox alla sua Evoluzione
Lo scopo del corso è di illustrare, utilizzando dati reali, gli aspetti pratici che vengono affrontati ...
Econometrics for Program Evaluation: Theory and Practice using Stata, 3rd Edition
Providing effective evaluation of economic, social and medical programs has become an increasingly important requirement for ...
Modelling Energy Markets using Stata
The trend in deregulation in energy markets worldwide has resulted in significant volatility, both in terms ...
Introduzione a Stata
Il corso fornisce gli strumenti necessari per permettere ai partecipanti di eseguire la gestione e l’analisi ...
Microeconometria con Stata
Il Workshop Microeconometria con Stata offre ai partecipanti un’introduzione esaustiva alle principale metodologie utilizzate nell’analisi dei ...
Analisi dei Dati Amministrativi e Ospedalieri con Stata
I dati amministrativi offrono ai ricercatori una ricca e esaustiva fonte di informazioni per analizzare i ...