06-24-2015 03:43 AM
Hi! I have a question: how can i 'translate' this RStudio command
> fm9.1<-gls(visual~-1+visual0+time.f+treat.f:time.f, weights=varIdent(form=~1|time.f),data=armd)
in SAS code?
I can't solve this problem. Thanks for your help!
06-24-2015 08:53 AM
With regards to the Linear Modelling GLS procedure, you can have a look at:
Or post directly into the statistics section on here about Linear Models.
With regards to the summary command, there is proc summary, proc means, proc freq. All have help pages on line. Should be mainly putting your variables in the correct order.
06-24-2015 09:21 AM
Thanks! But my problem is that hat i want to do a linear regression with heterogeneus variance, because my 'w_i' is not equal 1 but is equal to the variance of the first level of a model's factor. How can i write this?
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