Normalize -1 ~ 1
Consider re-scale the normalized value. e.g. normalize to 0..1, then multiply by 2 and minus 1 to have the value fall into the range of -1..1
there are many ways about normalize skils for ml and dl. It is known to provide only normalization for 0 to 1.
I want to know that is some ways to normalize -1 between 1.