Có 20+ tài liệu thuộc chủ đề "Hướng dẫn sử dụng SAS / ETS"
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MODEL statement (PANEL), 1327 TIME= option. MODEL statement (AUTOREG), 359 TR option. MODEL statement (AUTOREG), 350 TRACE option. MODEL statement (VARMAX), 2087 PROC FORECAST statement, 838. MODEL statement (VARMAX), 2161 TRENDADJ option. MODEL statement (PANEL), 1327 TYPE= option. MODEL statement (MDC), 938 UNIFORMPARM= option. MODEL statement (MDC), 938 UNITSCALE= option. MODEL statement (MDC), 937 UNITVARIANCE= option. MODEL statement (MDC), 940...
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SAS/ETS ® 9.22. SAS/ETS ® 9.22 User’s Guide.. Cary, NC: SAS Institute Inc.. SAS/ETS ® 9.22 User’s Guide. Copyright © 2010, SAS Institute Inc., Cary, NC, USA ISBN . SAS Institute Inc., SAS Campus Drive, Cary, North Carolina 27513.. For more information about our e-books, e-learning products, CDs, and hard-copy books, visit the SAS Publishing Web site at support.sas.com/publishing or...
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What’s New in SAS/ETS 9.22. Highlights of Enhancements in SAS/ETS 9.2. New SEVERITY Procedure (Experimental. SAS/ETS Model Editor Application (Experimental. This chapter summarizes the new features available in SAS/ETS 9.22.. If you have used SAS/ETS procedures in the past, you can review this chapter to learn about the new features that have been added. When you see a new feature...
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12 F Chapter 1: What’s New in SAS/ETS 9.22. The following tables are now available through the OUTPUT statement: E1, E2, E3, and E8.. The SIGMALIM option of the X11 statement enables you to specify the upper and lower sigma limits that are used to identify and decrease the weight of extreme irregular values in the internal seasonal adjustment computations.....
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your own SAS programs in lowercase, uppercase, or a mixture of the two.. helvetica is used for the names of variables and data sets when they appear in the text.. This section describes other sources of information about SAS/ETS software.. Accessing the SAS/ETS Sample Library. The SAS/ETS Sample Library includes many examples that illustrate the use of SAS/ETS software, including...
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diagnostic statistics to help judge the adequacy of the model including the following:. Vector Time Series Analysis. The VARMAX procedure includes the following features:. model checks and residual analysis using the following tests:. dead-start model that does not have present values of the exogenous variables Granger-causal relationships between two distinct groups of variables. impulse response function (or infinite order MA...
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statistical methods useful for large-scale time series analysis or (temporal) data mining output data sets stored in either a time series format (default) or a coordinate format (trans-. The TIMESERIES procedure is normally used to prepare data for subsequent analysis that uses other SAS/ETS procedures or other parts of the SAS system. The time series format is most useful when...
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capabilities provided by the Time Series Forecasting System included with SAS/ETS and described in Part IV.. Forecast Studio is documented in SAS Forecast Server User’s Guide.. Major uses of High-Performance Forecasting procedures include: forecasting, forecast scoring, market response modeling, and time series data mining.. The software includes the following automatic forecasting process:. accumulates the time-stamped data to form a fixed-interval...
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(1992), “Using PROC ARIMA in Forecasting the Demand and Utilization of Inpatient Hospital Services,” Proceedings of the Seventeenth Annual SAS Users Group International Conference, 383-391. (1993), “Using SAS/ETS in Applied Econometrics: Parameters Estimates for the CES-Translog Specification,” Proceedings of the Eighteenth Annual SAS Users Group International Conference, 275-279. (1993), “Spectral Decomposition and Reconstruction of Nuclear Plant Signals,” Proceedings of the...
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72 F Chapter 3: Working with Time Series Data. Thus, it is a good practice to include a SAS date or datetime ID variable in all the time series SAS data sets you create. However, you might find working with time series data in SAS easier and less confusing if you adopt the practice of always using the same name...
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82 F Chapter 3: Working with Time Series Data. The output data set FOREOUT contains many different time series in the single variable CPI. (The first few observations of FOREOUT are shown in Figure 3.6.) BY groups that are identified by the variable CITY contain the result series for the different cities. Figure 3.6 Combined Cross Sections and Interleaved Time...
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92 F Chapter 3: Working with Time Series Data. title "Plot of USCPI Data";. Plot of USCPI Data. The TIMEPLOT procedure in Base SAS plots time series data vertically on the page instead of horizontally across the page as the PLOT procedure does. The following statements use the TIMEPLOT procedure to plot CPI in the USCPI data set. See “The...
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Since the INTCK function counts the number of interval beginning dates between two dates, the number of Sundays is computed by counting the number of week boundaries between the last day of the previous month and the last day of the current month. Suppose you have a time series data set and you want to verify that the data periodicity...
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112 F Chapter 3: Working with Time Series Data. The following statements show how to compute the running sum of variable X in data set A, adding XSUM to the data set.. For example, the following statements add the variable XSUM2 to data set A. Assuming that A is a quarterly data set, the following statements compute running sums of...
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122 F Chapter 3: Working with Time Series Data. Other interpolation methods can be requested.. Note that interpolating values of a time series does not add any real information to the data because the interpolation process is not the same process that generated the other (nonmissing) values in the series. While time series interpolation can sometimes be useful, great care...
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132 F Chapter 4: Date Intervals, Formats, and Functions. The starting subperiod s is in months (MONTH). For example, MONTH2.2 inter- vals are February–March, April–May, June–July, August–September, October–November, and December–January of the following year.. The 3rd, 6th, 9th, and 12th months are five ISO 8601 weeks long with the exception that some 12th months contain leap weeks. All other months...
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See SAS Language Reference: Concepts for a complete description of these formats, including the variations of the formats produced by different width options. See Chapter 3, “Working with Time Series Data,” for a discussion of the use of date and datetime formats.. Table 4.3 lists some of the available SAS date formats. Table 4.3 Frequently Used SAS Date Formats. Day...
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If the descriptor is ‘V’, the result is equivalent to the ISO 8601 week of year definition. The first week of the year, Week 1, and the last week of the year, Week 52 or 53, can include days in another Gregorian calendar year.. returns the day of the week from a SAS date value. DFTEST Macro. %AR generates statements...
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where n is the number of observations, 1 is the n-dimensional column vector of 1s, e 2 is the variance of the white noise, X D .X 1. X n / 0 , and † xx is the covariance matrix of X.. On the other hand, if the log-transformed time series Y t D ln.X t C c/ is a...
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specifies that the initial step length value ˛ .0/ for each line search (used by the QUANEW, HYQUAN, CONGRA, or NEWRAP technique) cannot be larger than r times the step length value used in the former iteration. If the DAMPSTEP option is specified but r is not specified, the default is r D 2. The DAMPSTEP=r option can prevent the...