Hello, As I mentioned earlier, the variable LOS in positively skewed, I was trying to solve the problem by applying log transformations. The reason why I need to normalize the variable is to meet assumptions of multiple linear regression... I run the following code: data FYP.LOS_OUTLIERS_LOG; SET FYP.LOS_OUTLIERS_LOG; lny = log(DaysOfStay); /* The natural logarithm (base e) */ run; but still new variable seems to be skewed : I wonder if the code I run is correct?! Thanks Best Regards Agate
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