How to use If and for Random Matrices???

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.

[KSSV]

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

[Jan]

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

Answer 1

[H ZETT M]

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

[Guillaume]

You've made a slight error in the comparisons, but as this is most likely homework, I would leave it as is and let the OP figure it out (and best would have been not to provide the loop method, they won't learn anything if you do their homework).

An even simpler way without a loop:

result = rand(5, 8) >= 0.5;

[KSSV]

@H ZETT M ...it is not fair to answer home work questions...

[Ahamed KMR]

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]

@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.