find a value in a matrix

For example I have the following cell
x1 x2 x3
x1 2 3 4
x2 5 -2 -5
x3 -6 -5 -4
I want to search all variable of matrix > -2, and as output : x1, x2 for example. In my case :
INPUT:find(matrix>-2),
OTUPUT:
X1 X1
X1 X2
X2 X1
X1 X3

 Accepted Answer

I wasn't sure if you want the actual output in terms of 'x*' or the corresponding index.
>> inputMat = [2 3 4; 5 -2 -5; -6 -5 -4];
>> [myRow, myCol] = find(inputMat > -2);
>> numericalAns = [myRow myCol];
>> indexNames = {'x1' 'x2' 'x3'};
>> cellFormAns = [indexNames(myRow)' indexNames(myCol)'];

5 Comments

Greaaat good job!!! thanks u. Last questions, if I wanto to have also the value of my research, for example:
x1 x2 == 3
I didn't fully understand your question. Could you please rephrase?
I want the value of my research. For example I obtain that x1,x2 have a value >-2, and I want another array in which ther'is this value, in this case 3.
Is this what you're looking for?
>> matchValues = inputMat(inputMat > -2);
This worked! Thank you!

Sign in to comment.

More Answers (0)

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!