Hello, I have a dataset that requires a log transformation due to skewed data. However, performing a log transformation changes some of my values to negative values, which do not allow me to obtain a geometric mean. Those values are still of importance to my analysis, so I was adviced to use a log +1 transformation. My question is will using the command PROC SURVEYMEANS with ALLGEO to calculate the geometric mean take into account the "+1" in the log +1 transformation or does that have to be factored in the sas code. Any advice is greatly appreciated. Thanks, Mark
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