zero mean and one variance

How to make dataset into zero mean and 1 variance

Answer 1

[Roger Stafford]

That's easy. Subtract the dataset's mean value from each element. Then divide each element by the dataset's standard deviation. My question to you is, why would you want to do such a thing?

[subha]

i want to give zero mean and unit variance Gaussian input to my restricted boltzmann machine

Answer 2

[Andrei Bobrov]

Normally distributed:

out = randn(1000,1);

[subha]

This will generate some random numbers with zero mean and 1 variance.But,i want to get input from a dataset which has zero mean and 1 variance.So for that i want to make my dataset to that condition

[subha]

randn() will generate any random values with standard normal distributed value.am i right? how to generate random values fr0m the dataset using randn command