TAILIEUCHUNG - SAS/ETS 9.22 User's Guide 59

SAS/Ets User's Guide 59. Provides detailed reference material for using SAS/ETS software and guides you through the analysis and forecasting of features such as univariate and multivariate time series, cross-sectional time series, seasonal adjustments, multiequational nonlinear models, discrete choice models, limited dependent variable models, portfolio analysis, and generation of financial reports, with introductory and advanced examples for each procedure. You can also find complete information about two easy-to-use point-and-click applications: the Time Series Forecasting System, for automatic and interactive time series modeling and forecasting, and the Investment Analysis System, for time-value of money analysis of a variety of investments | 572 F Chapter 11 The DATASOURCE Procedure Cross-section one VERSION Z . is identified by COUNTRY 112 CSC F PARTNER Cross-section two is identified by COUNTRY 146 CSC F PARTNER VERSION Z . Cross-section three is identified by COUNTRY 158 CSC F PARTNER VERSION Z . Table The Form of a SAS Data Set Containing BY Variables BY Variables Time ID Variable Time Series Variables COUNTRY CSC PARTNER VERSION DATE EFFEXR EXRINDEX 112 F Z SEP1987 9326 12685 112 F Z OCT1987 9393 12813 112 F Z NOV1987 9626 13694 112 F Z DEC1987 9675 14099 112 F Z JAN1988 9581 13910 112 F Z FEB1988 9493 13549 146 F Z SEP1987 12046 16192 146 F Z OCT1987 12067 16266 146 F Z NOV1987 12558 17596 146 F Z DEC1987 12759 18301 146 F Z JAN1988 12642 18082 146 F Z FEB1988 12409 17470 158 F Z SEP1987 13841 16558 158 F Z OCT1987 13754 16499 158 F Z NOV1987 14222 17505 158 F Z DEC1987 14768 18423 158 F Z JAN1988 14933 18565 158 F Z FEB1988 14915 18331 Note that the data sets in Table and Table use two different ways of representing time series data for three different countries the United Kingdom COUNTRY 112 Switzerland COUN-TRY 146 and Japan COUNTRY 158 . The first representation Table incorporates each country s name into the series names while the second representation Table represents countries as different cross sections by using the BY variable named COUNTRY. See Time Series and SAS Data Sets in Chapter 3 Working with Time Series Data. Obtaining Descriptive Information on Cross Sections F 573 Obtaining Descriptive Information on Cross Sections If you want to know the unique set of values BY variables assume for each cross section in the data file use the OUTBY option. For example the following statements list some of the cross sections available for an IFS file and are shown in Figure . filename ifsfile RECFM F LRECL 88 proc datasource filetype imfifsp infile ifsfile outselect on ebcdic interval month outby xsection run title1 Some Cross Sections Available in .

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