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RATS Product Information
Introduction and Overview
RATS Econometrics Software
RATS (Regression Analysis of Time Series) is a fast, efficient, and
comprehensive time series analysis and econometrics software package.
RATS makes simple tasks easy to accomplish, while its command-driven
interface and extensive programmability also make it a very flexible
and powerful tool for more complex applications. |
The Windows and Macintosh versions feature an interactive editor
that allows you to create, test, and run RATS programs; view, save,
and print text and graphs; access on-line help; and much more. While
running in interactive mode, you can quickly experiment with different
models or procedures, without having to repeat earlier steps each
time. The editor also includes menu-driven Wizards for many tasks,
including reading in data, running regressions, doing hypothesis tests,
graphing results, and more. The editor also an extensive help system
(handled as HTML files on the Mac version), toolbar icons for common
operations, the ability to display information in spreadsheet-style
windows, and much more.
To learn more about the RATS interactive mode interface, we invite
you to take a Guided Tour of RATS. This is step-by-step tour that
introduces the basic elements of the RATS interface and command language.
All versions of RATS also offer batch mode operation. In batch mode,
RATS automatically reads and executes instructions from one or more
input files, and saves the output to disk.
Our most recent RATS Brochure is available for downloading/viewing
in Adobe
PDF format. This includes general information on Version 6, a list
of features, plus details on the CATS cointegration analysis package
and X11 seasonal adjustment module, our econometric textbook offerings,
and our database products.
Use the menu at right to find out more about the leading econometrics
software package. For information on our other products, including
economic databases and textbooks, please see the Product Information
page.
Product Information
List of Features |
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List of RATS Features
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.
If, after looking over this list, you are not sure that RATS can do
what you need, just ask us. You can call us at 800-822-8038 or e-mail
us at estima@estima.com
and we'll do our best to answer your question.
Statistical Features |
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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
- ARCH and GARCH estimation (univariate and multivariate)
- Seemingly unrelated regressions and three-stage least squares
- Non-linear systems estimation
- Generalized Method of Moments
- Maximum likelihood estimation
- Constrained optimization
- Built-in hypothesis testing
- Logit and probit models
- Censored/truncated data
- Fixed/random effects estimators
- Non-parametric regressions
- Kernel density estimation
- Robust estimation
- Recursive least squares
- State-space models
- Neural network models
- Linear and quadratic programming
Time Series Procedures
- ARIMA models including multiplicative seasonal models, with
support for arbitrary lag structures.
- Transfer function/intervention models
- Vector autoregressions, including structural VAR¡¯s
- Impulse responses, variance decompositions
- Error correction models
- Kalman filter
- Spectral analysis
Forecasting
- Time series models
- Regression models
- Exponential smoothing
- Simultaneous equation models (unlimited number of equations)
- Simulations with random or user-supplied shocks
- Forecast performance statistics
Interface |
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nteractive RATS Editor
- Interactive text-editor interface makes it easy to write, test,
modify, and re-run programs
- Menu-driven Wizards for many functions, including reading data,
estimating regressions, and more
- Output can be directed to spreadsheet style windows for easy
exporting or copying-and-pasting into other applications
Batch Mode
- Complete programs can be executed in batch mode from the command
prompt, by dragging and dropping from Windows Explorer, or by
clicking on a shortcut icon.
Working With Data |
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Graphics
- High-quality time series graphics
- High-resolution X-Y scatter plots
- Dual-scale graphs
- Contour graphs
- Copy-and-paste graphs into other applications
- Export graphs to many formats, including PostScript and WMF
Data Entry and Output
- Menu-driven ¡°Data Wizard¡± for reading in data
- Reads and writes Excel XLS, WKS, ASCII, DIF, PRN, DBF, and other
data files
- Can read Haver Analytics database files
- Professional version can read and write FAME format database
files (requires FAME
for windows software).
- On-screen data editor
- Can handle virtually any data frequency, including daily, weekly,
intra-day, and panel data
- RATS data file format is fast and easy, supports all frequencies,
and allows you to store series of different frequencies on the
same file
- Easy to convert data to different frequencies
Data Transformations
- Flexible transformations with algebraic formulas
- Easy to create trend series, seasonal, and time period dummies
- Specialized differencing and filtering operations
- X11 Seasonal Adjusment methodology (in Professional version
only)
Programmability |
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Programmable Interface
- 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.
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