For loops and the find function

For a homework assignment, I have to:

1. Use the find function to fin the column and row of all the values in a matrix that are greater than a user input.

2. Use a for loop to find the values in the matrix based off the row and column location.

I can do all of it, but the for loop is not working the way I want it to be.

Here is my code so far:

 load('Refract.mat');
A = Refract;
MaxVal = input('Input the maximum refraction value: ');
while MaxVal < 0 
    disp('ERROR: The input must be greater than 0.');
    MaxVal = input('Inpu the maximum refraction value: ');
end
[rows,columns,values] = find(A > MaxVal);
length = length(columns)
for x = [1:length]
    Values = rows(x),columns(x);
end
Table = [rows,columns];
disp('   Rows Columns Value');
disp(Table);

Answer 1

[Image Analyst]

Glad you at least tried something before just posting your homework. Don't use length as the name of a variable because it is the name of a built-in function. Try this:

numElements = length(columns)
for k = 1 : numElements
    Values(k) = A(rows(k),columns(k));
    fprintf('A(%d, %d) = %f\n', rows(k), columns(k), Values(k));
end
% Display in command window
Values
% No need for Table or disp().

[Will]

My teacher wants it to be displayed like that (I know, very annoying)

But I modified what you put and got it to work out the way my teacher likes, so thank you so much!!