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laurenhosking
Quartz | Level 8
How would i go about performing a log y (log transformation) on a single variable in my data set. This is so I’m able to perform a linear regression
6 REPLIES 6
laurenhosking
Quartz | Level 8
I tried this but my data still doesn’t follow a normal dist. Any idea why?
PeterClemmensen
Tourmaline | Level 20

Your data does not have to be normally distributed to run a linear regression.

 

This is a good article on the topic: On the assumptions (and misconceptions) of linear regression .

FreelanceReinh
Jade | Level 19

Hi @PeterClemmensen,

 

I think your link points to "Need to log-transform a distribution? There's a SAS function for that!" (which is also an interesting article), but of course you mean "On the assumptions (and misconceptions) of linear regression."

PeterClemmensen
Tourmaline | Level 20

Oh, yes of course. Corrected, thank you!

ksumbundu
Calcite | Level 5

*Log Transfrom single variable;

 

data work.prac;
set project1.hiv;
LogA = log(A);
LogB = log(B);
run;

Try this. (using log function)

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