p =2 is to tell the variance as a quadratic function of mean. That is the standard form for NB model which has been adopted in GENMOD procedure. In other words, (p=2) is redundant coding in PROC GENMOD.
Jingju
楼主: xixi219
|
3076
5
[有偿编程] 求助SAS负二项回归模型的实现 |
博士生 42%
-
|
|
| ||
| ||
SAS资源
1. SAS 微信:StatsThinking 2. SAS QQ群:348941365 |
||
京ICP备16021002-2号 京B2-20170662号 京公网安备 11010802022788号 论坛法律顾问:王进律师 知识产权保护声明 免责及隐私声明