zero mean and one variance

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subha
subha 2013-11-21
编辑： subha 2013-11-22
How to make dataset into zero mean and 1 variance

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Roger Stafford
Roger Stafford 2013-11-21
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
subha 2013-11-21
编辑：subha 2013-11-22
i want to give zero mean and unit variance Gaussian input to my restricted boltzmann machine

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Andrei Bobrov
Andrei Bobrov 2013-11-21
Normally distributed:
out = randn(1000,1);
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subha
subha 2013-11-21
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
subha 2013-11-22
编辑：subha 2013-11-22
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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