TAILIEUCHUNG - SAS/ETS 9.22 User's Guide 91

SAS/Ets User's Guide 91. 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 | 892 F Chapter 16 The LOAN Procedure BUYDOWN Statement BUYDOWN options The BUYDOWN statement specifies a buydown rate loan. The buydown rate loans are similar to ARM loans but the interest rate adjustments are predetermined at the initialization of the loan usually by paying interest points at the time of loan initialization. You must use all the required specifications and options listed under the FIXED statement with the BUYDOWN statement. The following option is specific to the BUYDOWN statement and is required BUYDOWNRATES date1 rate1 date2 rate2. BUYDOWNRATES period1 rate1 period2 rate2. BDR specifies pairs of periods and the predetermined nominal interest rates that will be charged on the loan starting at the corresponding time periods. You can also specify the buydown periods as dates in the form of SAS date literals if you also specify the date of the initial payment by using a date value in the START option. Buydown periods or dates and the respective buydown rates must be in time sequence. COMPARE Statement COMPARE options The COMPARE statement compares multiple loans or it can be used with a single loan. You can use only one COMPARE statement. COMPARE statement options specify the periods and desired types of analysis for loan comparison. The default analysis reports the outstanding principal balance breakeven of payment breakeven of interest paid and before-tax true interest rate. The default comparison period corresponds to the first LIFE option specification. If the LIFE option is not specified for any loan the loan comparison period defaults to the first calculated life. You can use the following options with the COMPARE statement. For more detailed information on loan comparison see the section Loan Comparison Details on page 896. Analysis Options ALL is equivalent to specifying the BREAKINTEREST BREAKPAYMENT PWOFCOST and TRUEINTEREST options. The loan comparison report includes all the criteria. You need to specify the MARR option for present worth

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