Geometric LS mean.

rakeshvvv · Posted 11-13-2018 12:17 PM

Hi All,

Can someone help me with the code or procedure for calculation of Geometric LS mean.

Best regards

Rakesh

mkeintz · Posted 11-14-2018 12:22 AM

I know what a geometric mean is, but I'm not sure about "geometric LS mean.". The term LS (for "least squares", correct?) suggests a predicted vs observed comparison, which makes me think there has to be a model.

Can you provide more detail on what you are trying to do, and how geometric LS mean would be understood?

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rakeshvvv · Posted 11-16-2018 11:58 AM

Thank you for your response. I am supposes to create a summary table to compare one treatment group against the other treatment group. I have to calculate geometric least square means using the PROC MIXED...I got the required components and I am able to calculate them using Proc mixed.

Best regards

mkeintz · Posted 11-16-2018 08:51 PM

Looking at the PROC MIXED documentation, I see that it offers a LSMEANS statement, which I understand is meant to accommodate unbalanced designs in the class variables. So how is the geometric attribute established?

I'm quite curious. Can you show the proc mixed code you used to satisfy your assignment?

--------------------------
The hash OUTPUT method will overwrite a SAS data set, but not append. That can be costly. Consider voting for Add a HASH object method which would append a hash object to an existing SAS data set

Would enabling PROC SORT to simultaneously output multiple datasets be useful? Then vote for
Allow PROC SORT to output multiple datasets

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PeterClemmensen · Posted 11-14-2018 04:11 PM

I second @mkeintzs respond, I am uncertain about Geometric LS Mean?

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