The experimental TPHREG procedure adds the CLASS statement to the PHREG procedure. The CLASS statement enables you to specify categorical variables (also known as CLASS variables) as explanatory
The TPHREG procedure also enables you to specify CONTRAST statements for testing customized hypotheses concerning the regression parameters. Each CONTRAST statement also provides estimation of individual rows of contrasts, which is particularly useful in comparing the hazards between the categories of a CLASS explanatory variable.
The COEF option in the OUTPUT statement enables you to output coefficients of the fitted function.
The TRANSREG procedure has new transformation options for centering and standardizing
The new algorithm option INDIVIDUAL with METHOD=MORALS fits each model for each dependent variable individually and independently of the other dependent variables.
With hypothesis tests, the TRANSREG procedure now produces a table with the number of observations, and, when there are CLASS variables, a class level information table.
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