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7#

楼主 |
发表于 2009-6-15 22:08:11
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Re: 青椒 做1:2配对的条件Logistic回归的sas程序?
"且x1有3个等级,同时调整x2、x3、x3、x4等混杂因素变量(各有不同等级,有的有序,有的无序)。.."
Sorry, I did not pay attention to those conditions.
you know, phreg only can deal with contiunous variables; that is, if you do not regard those as continuous, you have to change those variables to dummies.for example, for x, you can write two new variables ,x1=(x=1) and x2=(x=2) and so on;
i believe that proc tphreg can deal with class directly, you can do some research on that. |
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