Programming the statistical procedures from SAS

Parameters of generalized gamma distribution - proc LIFEREG

Reply
N/A
Posts: 1

Parameters of generalized gamma distribution - proc LIFEREG

Hello everyone,

I did a proc lifereg using the generalized gamma distribution, as follow :

proc lifereg data=survival.data;

      class treatment;

      model timedays*death(0)=treatment/dist=gamma;

run;

I want to identify the 3 parameters of the generalized gamma distribution. I know this distribution has one scale parameter and two scales parameters, but how can I calculate them using the output ?

Here is what I get in the output :

                                      The LIFEREG Procedure

                       Analysis of Maximum Likelihood Parameter Estimates

                                   Standard   95% Confidence     Chi-

            Parameter       DF Estimate    Error       Limits       Square Pr > ChiSq

            Intercept        1   7.3382   0.0799   7.1815   7.4949 8425.03     <.0001

            treatment     0  0   0.0000    .        .        .         .        .

            Scale            1   0.4830   0.3039   0.1407   1.6581

            Shape            1   1.5785   1.0907  -0.5593   3.7163

Thank you very much for your help.

Ask a Question
Discussion stats
  • 0 replies
  • 468 views
  • 0 likes
  • 1 in conversation