MATLAB: Create a 4D matrix with specific range values

Question

I would like to create a 4D matrix with specific range values:

For the first dimension, values from [5 10 15 … 200] so basically 5*[1:40]

For the second dimension, values from the list [8 10 20 25 40 50 100 200]

For the third dimension, values from [1 2 3 … 10] so [1:10]

For the fourth dimension, values from [1 2 … 50] that is [1:50]

When accessing a specific "value" of that matrix, I would like to be able to view these rages that I've set up for each dimension. For example: A(2,1,2,3) = [10 8 2 3] (in this case)

How can I do that?

Thank you.

Answer 1

You can store the error

In quadruple loop over all 4 parameters...

theActualValue = whatever(..........
thisError = SomeFunctionToComputeError(theActualValue, theExpectedTrueValue);
% Save error for this combination of parameters.
A(samplingRate, windowSize, numLayers, numNeurons) = thisError;