# How to use If and for Random Matrices???

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Ahamed KMR on 1 Aug 2017
Reopened: Ahamed KMR on 19 Jul 2018
generate a 5*8 matrix of random numbers and next write a programme using "for" and "if" loops to replace numbers less than 0.5 with "0" and numbers 0.5 or above with 1.
##### 2 CommentsShowHide 1 older comment
Jan on 1 Aug 2017
There are no "if loops", to be correct.

H ZETT M on 1 Aug 2017
So the way without the for and if loops is:
X=rand(5,8)
X(X<(0.5))=0;
X(X>(0.5))=1;
if you really want to use loops:
X=rand(5,8)
for i=1:5
for m=1:8
if X(i,m)<=0.5
X(i,m)=0;
else X(i,m)=1;
end
end
end
Jan on 1 Aug 2017
@Ahamed KMR: You are waiting H ZETT M's prompt action?! This sounds rather impolite considering the fact, that he or she has almost solved your homework. The remaining work to do is really tiny, so please do show any own effort.
Posting homework solutions is a drawback for the reputation of the forum. In my university posting solutions programmed by others without mentioning this clearly was treated as cheating and one can loose the status as student.

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