'After standardization I got much larger values for columns with small standard deviation? How should I unified the data
I have a data set that I would like to clean it. Among these data I have some columns with small mean and small std. When I try to standrize it the elements of those columns getting very large. Ho should I solve the problem? Am I allowed to first normalise each column and then standrized whole data set? The figure for comparing their mean before and after is attached.
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