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subha

zero mean and one variance

Asked by subha
on 21 Nov 2013
Latest activity Edited by subha
on 22 Nov 2013

How to make dataset into zero mean and 1 variance

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2 Answers

Answer by Roger Stafford
on 21 Nov 2013
 Accepted answer

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?

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subha
on 21 Nov 2013

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


Answer by Andrei Bobrov
on 21 Nov 2013

Normally distributed:

out = randn(1000,1);

  2 Comments

subha
on 21 Nov 2013

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
on 22 Nov 2013

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


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