how to normalize a matrix?????

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abdulkader helwan
abdulkader helwan 2014-10-22
回答： Steven Lord 2021-2-22
hello everyone... i need a code to normalize( between 0 and 1) a matrix 7*50. the normalization process should be for each column not row**. in other words, the program should seek for the largest value in each column and divide all the elements in that column by it. can anybody help plzz

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James Tursa
James Tursa 2014-10-22
编辑：James Tursa 2014-10-22
Assuming values are positive, e.g.,
M = your matrix
N = bsxfun(@rdivide,M,max(M)); % Normalized (scaled) matrix by column
Greg Heath
Greg Heath 2014-10-23
rng('default')
A = 100*randn(3)
Amin = repmat(min(A),3,1)
Amax = repmat(max(A),3,1)
a = (A-Amin)./(Amax-Amin)
Hope this helps.
Thank you for formally accepting my answer
Greg
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Image Analyst
Image Analyst 2014-10-25
abdulkader's "Answer" moved here:
thnaks bro.. that was helpful

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Steven Lord
Steven Lord 2021-2-22
Use the normalize function with a dim input and the 'range' normalization method.

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