call a input variable in a function

I have created a model using pdetool command and kept the model under a function with name 'heat.m' as follows:

function A = heat (B,~)
Model = createpde('thermal','transient');
............
C = B/3.2;
E = C/5.;
..........
end

Calling the above function within a for loop in separate script file. The for loop are as follows:

t1=0:0.1:1;
for j=1:length(t1)
D(j) =.....;
A = heat (D(j));
end

I am not getting any results. I understand that I am doing wrong while calling input variable B. At each iteation, the variable B will be replaced by D(j). How can I replace the input variable correctly?

[KSSV]

Check the dimensions of B and D(j) are they equal? You need to see how the input B is.

[mathru]

The dimensions of B and D are different but the dimensions of B and D(j) are same. Actually, when the function is calling within the for loop, B is replacing by D(j) and then the function is solving.

[Stephen23]

"I am not getting any results."

Please explain exactly what you expect, and what you observe (and how you are checking it).

"I understand that I am doing wrong while calling input variable B."

Why do you understand that? The most obvious bug I can see is the lack indexing into the output array, which means that your code will overwrite all A data except for the data from the last iteration.

https://www.mathworks.com/help/matlab/matlab_prog/preallocating-arrays.html

[mathru]

Code is showing that it is running but not giving any output.

You are right. Output array is the problem. Trying to solve the problem.

Answer 1

[DGM]

The function definition indicates that A is the output array.

function A = heat (B,~)

But at least from what's shown here, A is never defined within the function scope, so nothing will be returned.