I am using this source to "standardize" my data: LINK
For this I have to carry out calculations of subtracting off the mean and dividing by the standard deviation. Does it matter if I get negative values in my data after subtracting the mean?
normalizationpcastandardization
I am using this source to "standardize" my data: LINK
For this I have to carry out calculations of subtracting off the mean and dividing by the standard deviation. Does it matter if I get negative values in my data after subtracting the mean?
Best Answer
Negative numbers aren't a problem for PCA.
In general, standardization will produce lots of negative numbers, because any value below the mean will be standardized to be negative.