Rats 9.2

Distributore Esclusivo
ULTIMO RILASCIO: 6 Giugno 2017

RATS (Regression Analysis of Time Series) is a fast, efficient, and comprehensive econometrics and time series analysis software package. For more than two decades, it has been the econometrics software of choice at universities, central banks, and corporations around the world. Our current release, Version 8.0, is easier to use than ever while continuing to offer the most advanced tools available for cutting-edge econometrics research.

 

Econometrics and Data Management

RATS provides all the basics you expect, including linear and non-linear least squares, forecasting, SUR, and ARIMA models. But it goes far beyond that, with support for techniques like GMM, ARCH and GARCH models, state space models, and more. RATS also offers unmatched support for Vector Autoregression models, and is one of the few programs to offer spectral analysis capabilities.

 

RATS can handle time series of virtually any frequency, including daily and weekly, as well as panel and cross-section data.

 

Menu-driven data wizards and support for reading various text, spreadsheet, and database file formats make it easy to get your data into RATS. Our Professional version adds support for more database formats, including SQL/ODBC data access, for even more flexibility.

 

The RATS Editor

 

 

Our interactive RATS Editor environment allows you to quickly implement econometric analysis tasks, and makes it easy to try different model specifications or techniques without having to rerun entire programs.

 

You can save your work as a RATS program, allowing you to reproduce your results at any time with just a couple of mouse clicks.

 

Point-and-Click Wizards

 

 

The editor also offers more than 40 menu-driven Wizards that provide point-and-click access to most common tasks, including reading data, displaying graphs, doing transformations, estimating a variety of models, and hypothesis testing. These help make RATS an ideal tool for new users and for use in educational settings.

 

When you use a Wizard, RATS displays the corresponding commands in the editor window so you can actually learn the RATS language through using the Wizards. This also allows you to use the Wizards to build complete programs that can be re-executed again later.

 

An often-overlooked aspect of econometric research is ensuring that results are reported accurately. RATS addresses this via a powerful report-generation feature for quickly generating accurate tables of reports, which you can export to text or spreadsheet files for direct inclusion in papers and presentations.

 

 

High-Quality Graphs

RATS allows you to create publication-quality time series graphs, scatter plots, and contour graphs.

 

 

Programming Capabilities

The command-driven language at the heart of the program remains easy to learn and use for simple jobs, but its extensive programming capabilities also allow you to handle much more complex tasks. Features include user-definable procedures and functions, looping and program control instructions, and the ability to create user-defined menus and dialog boxes. With these capabilities, you can automate complex or repetitive tasks, and even write sophisticated menu- and dialog-driven end-user applications.

 

All versions of RATS also offer “batch mode” operation. You can run jobs several ways: from the command line; by dragging and dropping files; or by double-clicking on a desktop icon. This is especially helpful for users who need to run the same jobs on a regular basis.

 

Cross Platform Support

RATS is available for Windows, Macintosh, UNIX, and Linux, with complete compatibility across platforms. You can share programs, data files, output, and graph files across any of these platforms with no translation required.

 

RATS Professional

The professional level of RATS adds the following features not found in the Standard level:

Support for reading databases via ODBC/SQL

Census Bureau X12-ARIMA seasonal adjustment routine

Support for FAME data files (for Windows and unix/linux)

Support for CRSP data files

Online access to the FRED database

 

RATS ADD-ON APPLICATIONS – CATS 2.0

 

CATS (Cointegration Analysis of Time Series) is a set of cointegration analysis procedures for use with the RATS software program. It was written by Henrik Hansen and Katarina Juselius, and is based on the research of Johansen, Juselius, and Hansen of the University of Copenhagen for use with RATS software.

 

CATS provides a wide variety of tools for analyzing your data and choosing and testing a cointegration model. The program is almost completely menu- and dialog-driven. You begin by running a short RATS program to define your data and load the CATS procedure. This adds several CATS menus to the RATS menu bar, and you perform your analysis by selecting operations from these menus. CATS will prompt you for any needed input.

 

What’s Included?

The CATS 2.0 package includes the CATS procedure on CD and a completely revised 200-page manual describing the econometrics of the cointegrated VAR model and how to interpret the output. All features of the program are illustrated by a worked example. The manual also includes a technical appendix describing the mathematics of CATS. Sample data and set-up files for the illustrative examples are also included.

Below is a listing of many of the key features supported by RATS. Please note that RATS is designed to be a very powerful and flexible program, so there is no way we can list all of its capabilities here.

 

Statistical Methods

Estimation Techniques

Multiple regressions including stepwise

Regression with autoregressive errors

Heteroscedasticity/serial-correlation correction, including Newey-West

Non-linear least squares

Two-stage least squares for linear, non-linear, and autocorrelated models

Seemingly unrelated regressions and three-stage least squares

Non-linear systems estimation

Generalized Method of Moments

Maximum likelihood estimation

Constrained optimization

Extensive built-in hypothesis testing capabilities.

Pre-written procedures for a huge variety of other tests, including unit-root, stability, and much more

Limited and discrete dependent variable models: logit, probit, censored/truncated (Tobit), count models

Panel data support, including fixed and random effects estimators

Non-parametric regressions

Kernel density estimation

Robust estimation

Recursive least squares

State-space models, including Kalman filtering and smoothing, simulations, and optimal control models

Neural network models

Linear and quadratic programming

Dynamic Stochastic General Equilibrium (DSGE) models

 

Time Series Procedures

Easy to specify lags and leads for time-series model estimation and analysis

ARIMA and ARMAX models including multiplicative seasonal models; support for arbitrary lag structures

Transfer function/intervention models

Error correction models

Kalman filter

Spectral analysis

 

Forecasting

Time series models

Regression models

Exponential smoothing

Static or dynamic forecasts

Simultaneous equation models (unlimited number of equations)

Simulations with random or user-supplied shocks

Forecast performance statistics, including Theil U statistics

 

Vector Autoregressions (VARs)

Unmatched support for VAR models

Error Correction models

Structural VARs. Choice of factorizations, including estimating a factor matrix from a covariance matrix model

Impulse responses, with Monte Carlo and Importance Sampling techniques for standard error bands.

Forecasting

Variance decomposition

Historical decomposition

Extensive hypothesis testing tools

CATS 2.0 add-on provides industry-leading cointegration analysis

 

ARCH and GARCH Models

Univariate and multivariate, including BEKK, diagonal, CC, DCC, and Vech multivariate models

Support for GARCH-in-mean models

Additional exogenous variables in mean and/or variance equations

Normal, t and GED distributions

Exponential and Asymmetric models

Robust standard errors

Working With Data

Data Entry

Menu-driven Data Wizards for reading in data

Reads and writes Excel® files (including Excel 2007), text files, Stata®, Eviews®, Matlab®, Haver databases, and other formats

Pro version supports SQL/ODBC access, online access to the FRED® database, CRSP® data, and more

On-screen data viewer and editor, with point-and-click graphing and statistics tools

Can handle virtually any data frequency, including daily, weekly, intra-day, and panel data

Can automatically compact or expand data to different frequencies

RATS data file format is fast and easy, supports all frequencies, and allows you to store series of different frequencies on the same file

 

Data Transformations

Flexible transformations with algebraic formulas

Easy to create trend series, seasonal, and time period dummies

Extensive filtering operations, including Hodrick-Prescott, Henderson, Spencer, and custom filters

Supports regular, seasonal, and fractional differencing

 

Graphics

Time series graphics

X-Y scatter plots

Dual-scale graphs

Box plots

Contour graphs

Ability to arrange multiple graphs on a single page

Copy-and-paste graphs into other applications

Export graphs to many formats, including PostScript and Windows Metafile

User can customize attributes such as line thickness, colors and grayscale levels, and fill patterns

Interface

Interactive Mode Environment

Text-editor based

Point-and-click “wizards” for many tasks, greatly enhancing ease-of-use

Saved programs can be re-run with just a few mouse clicks

Designed so that you can reproduce results, output, and graphs easily and accurately (a critical but often overlooked requirement for producing reliable, publication-quality results)

True multiple window support. Simultaneously view your input commands and output, spreadsheet-style “report” windows, graphs, and more

 

Programmability

Extensive looping capabilities and support for applying operations to lists of variables make it possible to automate many repetitive tasks

You can write procedures, which can perform complex tasks with a single instruction, and write your own callable functions.

A library of procedures written by RATS users from around the world is available free of charge on our web site

A variety of interface-related instructions allow you to create your own drop-down menus, custom dialog boxes, and more

 

Report Capabilities

Strong focus on making it easy to get results easily and accurately into documents or other applications.

Tables of output can be viewed in Report Windows, for easy exporting or copying-and-pasting into other applications.

Powerful report-generation features for constructing and exporting your own tables of information.

Easy control over displayed precision in output

TeX: Support for exporting TeX tables

The main enhancements with 9.2 are:

 

Two new optimization methods (Simulated Annealing and Genetic Annealing) have been added for non-linear estimation. These can be helpful in dealing with particularly difficult problems, as they do a very broad search of the parameter space.

The GARCH instruction has several enhancements. You can now estimate MODEL’s for embedded Error Correction Terms. The XBEKK option has been added to control GARCH-X handling in BEKK models. The DENSITY and PARMSET options allow you to override the standard likelihood density functions.

Pseudo-code Generators has been added for two common loop types: Monte Carlo/Gibbs loops and Rolling Sample loops. These generate the framework for a loop.

RTF (Rich Text Format) is now available as an export format for reports.

The New Project Wizard can assist with starting a new project (program file)

Error-correction models (VECM’s) created using SYSTEM with ECT can be used much more flexibly.

Edit-Prettify indents DO and DOFOR loops to make a program more readable.

Functions have been added for various “remapping” matrix operations, such as %DNN for the “duplication” matrix that takes a lower-triangular SYMMETRIC matrix to a full RECTANGULAR matrix

The DATA instruction now permits series<<fileseriesname fields to map a series/column name on an original file to a (valid) RATS name. This can be used to handle source file names which are too long, improperly formatted (for instance, having spaces), conflict with RATS reserved names (such as INV or T), or simply not easily understood.

 

A more extensive discussion of all the new features, commands and options can be found in the latest edition of the Rats Newsletter.

 

SINGLE-USER LICENSE AGREEMENT

 

You may use the software on any compatible computer, provided you use it on only one computer at a time. For instance, you can install it on both a home computer and an office computer. Or you may use the software on a network or file server provided that access is limited to one user at a time.

 

Limited Warranties. 1. Estima does not warrant that the program will meet your requirements, or that operation of the program will be uninterrupted or error-free. Estima, however, warrants the media on which the program is furnished to be free from defects in materials and workmanship under normal use for a period of ninety(90) days from the date of delivery to you, as evidenced by a copy of your receipt. Your exclusive remedy for breach of this warranty shall be the replacement (without charge to you) of a disk not meeting Estima’s warranty. 2. Estima warrants that the software does not infringe the rights of any other person or entity. Your exclusive remedy for breach of this warranty is whichever one of the following Estima selects: (a) modify the software so as to no longer be infringing; (b) replace the software with non-infringing software; or (c) upon return of the software, refund your license fee. Estima makes no other warranties, either express or implied, and Estima shall not be liable for implied warranties of merchantability and fitness for a particular purpose, nor for the special, incidental, or consequential damages such as loss or profits or inability to use the software. Some states do not allow the exclusion or limitation of implied warranties or limitation of liability for damages, so the above limitation or exclusion may not apply to you.

 

Governing Law. This license is governed by the laws of the State of Illinois and the United States of America.

MULTIPLE-USER/NETWORK LICENSE AGREEMENT

 

Multiple User/Network License. This is a multiple user/network license. You (the Licensee) may (a) install this on the number of computers indicated by the User Limit, solely for use by your employees (and your students if you are an institution of higher learning), or (b) install this on a single local area network provided the number of simultaneous users is limited to the User Limit. If the User Limit is “Unlimited”, you may do both. As this is a perpetual license, you are responsible for seeing that the software is removed from computers installed under option (a) when the computer no longer is in the possession of an employee or student. Should there be users (such as students) for whom enforcement of this would be difficult, you can obtain install disks for the software from Estima that are time-limited. Copies of the program installed with these would still count against your User Limit, but only for the time during which the program would be activated.

 

Limited Warranties: 1. Estima does not warrant that the program will meet your requirements, or that operation of the program will be uninterrupted or error-free. Estima, however, warrants the media on which the program is furnished to be free from defects in materials and workmanship under normal use for a period of ninety(90) days from the date of delivery to you, as evidenced by a copy of your receipt. Your exclusive remedy for breach of this warranty shall be the replacement (without charge to you) of a disk not meeting Estima’s warranty. 2. Estima warrants that the software does not infringe the rights of any other person or entity. Your exclusive remedy for breach of this warranty is whichever one of the following Estima selects: (a) modify the software so as to no longer be infringing; (b) replace the software with non-infringing software; or (c) upon return of the software, refund your license fee. Estima makes no other warranties, either express or implied, and Estima shall not be liable for implied warranties of merchantability and fitness for a particular purpose, nor for the special, incidental, or consequential damages such as loss or profits or inability to use the software. Some states do not allow the exclusion or limitation of implied warranties or limitation of liability for damages, so the above limitation or exclusion may not apply to you.

 

Governing Law. This license is governed by the laws of the State of Illinois and the United States of America.

 

The Professional version adds the X12 Census Bureau seasonal adjustment procedure and enhanced database access features, including ODBC/SQL data access, support for reading and writing FAME format database files, and the ability to read CRSP data.

 

WinRATS:

WinRATS runs on all recent versions of Windows, including Windows 8, 7, Vista, and XP, in either 32-bit or 64-bit. Here are the minimum system requirements:

A PC with a Pentium or later processor

Memory requirements will depend largely on the size of the data sets you need to work with. You will need approximately 1 Megabyte of RAM for every 128,000 data points. The RATS program itself is fairly compact, and only requires about 1 Megabyte of RAM to load.

A hard disk drive with at least 175Mb of free disk space (for a full installation, including all examples, procedures, and documentation)

Windows 8, 7, Vista or XP

 

 MacRATS:

MacRATS requires an Intel-based Mac and requires version 10.6 or later of OS X. It has been tested with all OS X upgrades through Yosemite.

Any Macintosh capable for running OS X 10.6 or later.

OS X 10.6 or later

Memory requirements will depend largely on the size of the data sets you need to work with. You will need approximately 1 Megabyte of RAM for every 128,000 data points. The RATS program itself is fairly compact, and only requires about 1 Megabyte of RAM to load.

A hard disk drive with at least 175Mb of free disk space (for a full installation, including all examples, procedures, and documentation)

 

RATS for UNIX and Linux

RATS is available for most UNIX-based workstations, including Sun, HP, and IBM systems. We also support Intel-based PC’s running Linux. (It is also possible to compile and run our UNIX version on Macintosh OS X systems, but most Mac users will prefer to use MacRATS, which is written specifically for the Mac OS X operating system).

For most of these, RATS is shipped as C and C++ language source code, which must be compiled on the target machine with an ANSI-standard C/C++ compiler. The Linux version is provided as a pre-compiled executable, with the source code available as an option.

The UNIX and Linux versions support essentially all of the features offered in the Windows and Macintosh versions, including the complete interactive mode “RATS Editor” interface. In order to use the interactive interface, your system must support X Windows, and the Motif libraries must be available. If these are not available, the program can only be run in batch mode.

 

System Requirements:

Processor: virtually any CPU running UNIX; Intel Pentium-based or later PC running Linux; a Macintosh running Mac OS X (PowerPC or Intel CPU)

An ANSI-standard C/C++ compiler (optional for Linux)

X Windows and Motif libraries (not required for batch mode operation)

A CD ROM drive

Disk Space: 100Mb of available space for a full installation

Memory Requirements: depends largely on the size of the data sets that will be used.

RATS for Windows and Macintosh

The Windows and Macintosh versions include:

The RATS software

RATSData (a stand-alone menu-driven data management utility program)

A huge collection of RATS procedures and example programs, including worked examples from many popular econometrics textbooks.

Extensive built-in Help systems

Over 1,000 pages of printed documentation, including the Getting Started guide, the RATS User’s Guide and the RATS Reference Manual.

Over 1,200 pages of documentation, including an Introduction, the RATS User’s Guide and the RATS Reference Manual. PDF’s of all documentation are always included; you can choose to get printed manuals for an added cost plus any added shipping.

 

Resources for RATS and CATS Users

This section of the website provides access to a variety of resources for users of our RATS and CATS software to help you better use our products. Use the menu above or the links below to access information on downloading procedures and example programs, obtaining Technical Support services, accessing the RATS discussion forum and more.

 

Procedures and Examples

The Procedures and Examples Page provides access to over a thousand existing RATS procedures and example programs you can download for your own use. Note that if you have a current copy of the program, most of these will already be loaded onto your computer, but the web-based browser may make it easier to find an example for a particular technique.

 

RATS Discussion Forum

Our web-based RATS Software Forum is a useful venue for RATS users to exchange ideas, solve programming problems, discuss econometrics topics, and more. The support staff at Estima are active participants, frequently posting example code and procedures on the forums before they appear anywhere else.

 

See the RATS Discussion Forums page for more information.

 

Newsletters

We periodically publish a newsletter (called RATSLetter which describes updates to the software, resources available to users and tips both on econometric practice and the use of RATS. You can download PDF copies using the link shown.

 

Software Updates

We occasionally post patch files that allow licensed RATS users to download updates to more recent versions at no charge. See Software Updates for details.

 

Known Bugs and Manual Errata

If you are experiencing a problem with RATS, you may want to check the List of Known Bugs to see if it is something we know about and have fixed. Others may want to look over this list to see if any known problems might affect your work.


© Copyright 2017 Estima

Programma per l’analisi econometrica di serie temporali. Caratterizzato da eccellenti grafici e dalla disponibilità di molte routine ad-hoc, tra cui ARCH, GARCH e Cointegrazione.