how to not exceed limits of the matrix column

Asked by minion001 on 10 Sep 2017

Latest activity Edited by José-Luis on 10 Sep 2017

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for eg, i have matrix A=[4 6 3 8 9 5;1 7 2 4 3 4;7 8 5 6 1 2; 1 8 4 7 10 6;] and i use a for loop to go across the column, for i =1:col .... how do i stop it before getting error of matrix exceeds dimensions

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Answer by José-Luis on 10 Sep 2017

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 your_array = rand(10,16)
 %looping through all columns
 for ii=your_array
     %ii now contains all values in column
 end

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José-Luis on 10 Sep 2017

Why do you do i=i+1?

It is unnecessary, if what you want is to increment the iterator index.

Why do you call both loop iterators i?

Call the first one ii and the second one jj or whatever, but definitely not the same name.

minion001 on 10 Sep 2017

i did that but how do i stop getting error when im at column 6 and its searching for elements next to it, where there isn't any elements present, resulting in matrix exceeds dimensions

José-Luis on 10 Sep 2017

Columns 1-5 of what? You are not indexing into A and that is the array whose columns you are looping on.

Please use the debugger. Place a breakpoint in the line that's giving you grief and look at the arrays you are indexing into.

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