TAILIEUCHUNG - SAS/ETS 9.22 User's Guide 164

SAS/Ets User's Guide 164. 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 | 1622 F Chapter 23 The SIMILARITY Procedure int targetLength double input iotype input int inputLength externc dtw_sqrdev_c double dtw_sqrdev_c double target int targetLength double input int inputLength int i j double x w d double prev double malloc sizeof double targetLength double curr double malloc sizeof double inputLength if prev 0 curr 0 return 999999999 x input 0 for j 0 j targetLength j w target j d x - w d d d if j 0 prev j d else prev j d prev j-1 for i 1 i inputLength i x input i j 0 w target j d x - w d d d curr j d prev j for j 1 j targetLength j w target j d x - w d d d curr j d fmin prev j fmin prev j-1 curr j if i targetLength for j 0 j inputLength j prev j curr j d curr inputLength-1 free char prev free char curr return d externcend User-Defined Functions and Subroutines F 1623 double dtw_absdev_c double target iotype input int targetLength double input iotype input int inputLength externc dtw_absdev_c double dtw_absdev_c double target int targetLength double input int inputLength int i j double x w d double prev double malloc sizeof double targetLength double curr double malloc sizeof double inputLength if prev 0 curr 0 return 999999999 x input 0 for j 0 j targetLength j w target j d x - w d fabs d if j 0 prev j d else prev j d prev j-1 for i 1 i inputLength i x input i j 0 w target j d x - w d fabs d curr j d prev j for j 1 j targetLength j w target j d x - w d fabs d curr j d fmin prev j fmin prev j-1 curr j if i inputLength for j 0 j targetLength j prev j curr j d curr inputLength-1 free char prev free char curr return d 1624 F Chapter 23 The SIMILARITY Procedure externcend run The preceding SAS statements create two C language functions which can then be used in SAS language functions or subroutines or both. However these functions cannot be directly used by the SIMILARITY procedure. In order to use these C language functions in the SIMILARITY procedure two SAS language functions must be created that call these two C language functions. The .

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