user manual

227
Complex Samples Cox Regression
Preparing the Data for Analysis
Before restructuring the data, you will need to create two ancillary variables to help with the
restructuring.
E To compute a new variable, from the menus choose:
Transform > Compute Var i able...
Figure 22-21
Compute Variable dialog box
E Type start_time2 as the target variable.
E Type time1 as the n umeric expression.
E Click OK.