How to use If and for Random Matrices???

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Ahamed KMR 2017-8-1

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重新打开： Ahamed KMR 2018-7-19

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.

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KSSV 2017-8-1

Seems this is an Home Work....such a easy task...what have you tried?

Jan 2017-8-1

There are no "if loops", to be correct.

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回答（1 个）

H ZETT M 2017-8-1

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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

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Ahamed KMR 2017-8-1

Hello H ZETT M,

First of all thanks for your quick response.

Once i run the code, it shows only the random matrix. Did you miss something???

I await your prompt action.

Have a nice day:) Thank you!

Jan 2017-8-1

@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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