I need to normalize all numeric columns of the data frame clean_mlb.
Here is a picture of clean_mlb (Photo #1)
This is the code that I wrote:
scaled_mlb = data.frame(scale(clean_mlb))
And this is the error that I got:
Error in colMeans(x, na.rm = TRUE) : 'x' must be numeric
Find out columns which are numeric and then apply scale
on those columns.
cols <- sapply(clean_mlb, is.numeric)
clean_mlb[cols] <- scale(clean_mlb[cols])
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