topic Re: Help! in Statistical Procedures https://communities.sas.com/t5/Statistical-Procedures/Help/m-p/212987#M11493 <HTML><HEAD></HEAD><BODY><P>What is the code above doing?</P></BODY></HTML> Wed, 24 Jun 2015 16:11:56 GMT Reeza 2015-06-24T16:11:56Z Help! https://communities.sas.com/t5/Statistical-Procedures/Help/m-p/212986#M11492 <HTML><HEAD></HEAD><BODY><P style="font-size: 13px; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: #ffffff;">Hi! I have a question: how can i 'translate' this RStudio command</P><P style="font-size: 13px; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: #ffffff;">&nbsp;&nbsp;&nbsp;&nbsp; &gt; fm9.1&lt;-gls(visual~-1+visual0+time.f+treat.f:time.f, weights=varIdent(form=~1|time.f),data=armd)</P><P style="font-size: 13px; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: #ffffff;">&nbsp;&nbsp;&nbsp;&nbsp; &gt; summary(fm9.1)</P><P style="font-size: 13px; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: #ffffff;">in SAS code?</P><P style="font-size: 13px; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: #ffffff;">I can't solve this problem. Thanks for your help!</P></BODY></HTML> Wed, 24 Jun 2015 16:10:29 GMT https://communities.sas.com/t5/Statistical-Procedures/Help/m-p/212986#M11492 Metz 2015-06-24T16:10:29Z Re: Help! https://communities.sas.com/t5/Statistical-Procedures/Help/m-p/212987#M11493 <HTML><HEAD></HEAD><BODY><P>What is the code above doing?</P></BODY></HTML> Wed, 24 Jun 2015 16:11:56 GMT https://communities.sas.com/t5/Statistical-Procedures/Help/m-p/212987#M11493 Reeza 2015-06-24T16:11:56Z Re: Help! https://communities.sas.com/t5/Statistical-Procedures/Help/m-p/212988#M11494 <HTML><HEAD></HEAD><BODY><P>It's a regression with heterogeneus variance:&nbsp; visual= visual0 timef timef*treatf&nbsp; without intercept, where timef and treat are factors. Based on generalize least squares (weighted in particular), where the 'w_i' is not equal 1, as usual, <SPAN style="font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 13px; background-color: #ffffff;">but it's equal to&nbsp; the variance of the first level of timef. How can i write this?</SPAN></P></BODY></HTML> Wed, 24 Jun 2015 16:42:47 GMT https://communities.sas.com/t5/Statistical-Procedures/Help/m-p/212988#M11494 Metz 2015-06-24T16:42:47Z