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ones(size(data, 2), 1) , what mean??

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mina
mina on 2 Mar 2013
ones(size(data, 2), 1) , what mean??

Answers (1)

Wayne King
Wayne King on 2 Mar 2013
Edited: Wayne King on 2 Mar 2013
Create a vector of ones which has the number of rows equal to the number of columns in the matrix data and 1 column
So if data is 100x10
data = randn(100,10);
then
y = ones(size(data,2),1);
creates a vector y that is 10x1.
If data is 100x1000
then
y = ones(size(data,2),1);
creates a vector of 1s that is 1000x1

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