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how to generate a random vector sized 1x100 or 100x1 without the numbers (mod,5)=0 ?

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Hüseyin
Hüseyin 2014-12-21
评论： John D'Errico 2014-12-22
vector sized 1x100 or 100x1 without the numbers (mod,5)=0

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回答（2 个）

Roger Stafford
Roger Stafford 2014-12-22
If you want to range uniformly over the first N positive integers that are not divisible by 5 and you want n random samples, do this:
x = floor(5/4*randi([0,N-1],n,1)+1);
Star Strider
Star Strider 2014-12-21
I have no idea what you actually want or what range the numbers have to be. The simplest way to do what you want is:
rv = [randi([1 4],1,50) randi([6 9],1,50)];
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Mustafa
Mustafa 2014-12-22
i do not think so, numbers between 0 and 1 can be divisible by 5.. for example 0.263215/5=.055256643 ??
John D'Errico
John D'Errico 2014-12-22
Mustafa - No. The requirement was that mod(x,5) == 0. A floating point number as you show will not have that property.

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