Removing element of array at random
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I have a 200 x 1 matrix of random numbers and I want to remove 10 numbers from the array at random.
Here is sample data i used:
a = 0; %mean
b = 1; %standard deviation
random_num = b*randn(200,1)+a; %generates random numbers
How can I remove, at random 10 numbers from the random_num variable?
采纳的回答
a = 0;
b = 1;
rn = b*randn(200,1)+1;
ix = randperm(200,10) % indices of elements to remove
rn(ix) = []; % remove elements
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