The EXPAND Procedure |
Creating New Variables |
You can use the CONVERT statement to name a new variable to contain the results of the conversion. Using this feature, you can create several different versions of a series in a single PROC EXPAND step. Specify the new name after the input variable name and an equal sign:
convert variable=newname ... ;
For example, suppose you are converting quarterly data to monthly and you want both first-of-month and midmonth estimates for a beginning-of-period variable X. The following statements perform this task:
proc expand data=a out=b from=qtr to=month; id date; convert x=x_begin / observed=beginning; convert x=x_mid / observed=(beginning,middle); run;
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