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)
> summary(fm9.1)
in SAS code?
I can't solve this problem. Thanks for your help!
I do not know Rstudio but if you give a sample of data you have and what you are trying to do I can try to help.
I do not know Rstudio but if you give a sample of data you have and what you are trying to do I can try to help.
Hi,
With regards to the Linear Modelling GLS procedure, you can have a look at:
http://support.sas.com/documentation/cdl/en/statugregression/61752/PDF/default/statugregression.pdf
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.
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?
I would suggest posting in the Statistical Procedures section of this help with your question, I am not a statistician sorry.
You mean Weighted Least Square ? Post it at Stat Forum. I guess proc glm can do that.
Yes, i mean that! Ok i try there. Thank you all
Don't miss out on SAS Innovate - Register now for the FREE Livestream!
Can't make it to Vegas? No problem! Watch our general sessions LIVE or on-demand starting April 17th. Hear from SAS execs, best-selling author Adam Grant, Hot Ones host Sean Evans, top tech journalist Kara Swisher, AI expert Cassie Kozyrkov, and the mind-blowing dance crew iLuminate! Plus, get access to over 20 breakout sessions.
Learn how use the CAT functions in SAS to join values from multiple variables into a single value.
Find more tutorials on the SAS Users YouTube channel.