zero mean and one variance

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subha 2013-11-21

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https://ww2.mathworks.cn/matlabcentral/answers/107013-zero-mean-and-one-variance

编辑： subha 2013-11-22

采纳的回答： Roger Stafford

How to make dataset into zero mean and 1 variance

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Answer 1

Roger Stafford 2013-11-21

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https://ww2.mathworks.cn/matlabcentral/answers/107013-zero-mean-and-one-variance#answer_115898

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 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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Answer 2

Andrei Bobrov 2013-11-21

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https://ww2.mathworks.cn/matlabcentral/answers/107013-zero-mean-and-one-variance#answer_115901

在 MATLAB Online 中打开

Normally distributed:

out = randn(1000,1);

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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 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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