MATLAB: Normalizing row of a matrix

matrixnormalizestatistics

Hey I have a matrix x=[ 1 0 7; 2 0 0; 3 0 9]; i would like to know if there is a way to normalize this data to a mean 0 and variance 1 according to the rows independently?

Best Answer

If you have Neural Network toolbox have a look on: mapstd

https://in.mathworks.com/help/nnet/ref/mapstd.html

Related Solutions

MATLAB: How to normalize rows of a matrix

Kimberley - your code is overwriting the value that was assigned to aefm_2 on the previous iteration

aefm_2 = aefm_1(i,:)./max(abs(aefm_1(i,:)));

You will need to set this variable to be an array with the same dimensions as aefm_1 and then update each row of it. Alternatively, you could probably do this in a single line of code without a loop.

aefm_2 = aefm_1 ./ max(abs(aefm_1), [], 2);

See here for why we add the [] and 2 paramaters as inputs to max.

MATLAB: What mean normr in matlab?

That is a function in the Neural Network Toolbox that normalizes the rows of the matrix to have l2 norm.

For example:

X = randn(10,4);
Y = normr(X);

Now if you check:

for kk = 1:size(Y,1)
 norm(Y(kk,:),2)
end

They all have unit norm.

Best Answer

Related Solutions

MATLAB: How to normalize rows of a matrix

MATLAB: What mean normr in matlab?

Related Question