Value Storage from Cells with Matlab

for j=1:200
x1c{j,1}=[FM{1,j}{1,2},FM{1,j}{1,3},FM{1,j}{1,4}]; 
end

I have this cell and I want the extract the values with respect to a logical operation:

mn=1
for kn=1:199
  for  sn=1:19973
  if abs((x1c{kn+1,1}(sn))-(x1c{kn,1}(sn)))>=20
       extract{mn}=x1c{kn,1}(sn) 
       mn=mn+1;
  end
  end
end

I am getting the error of "Index exceeds matrix dimensions."

How can I deal with this?

Answer 1

[James Tursa]

Type the following at the MATLAB prompt:

dbstop if error

Then run your code. When you get the error the code will pause and you can examine the variable sizes. E.g., examine x1c{kn,1} to see if the size will support indexing with the value in sn. This will help you isolate the immediate cause of the error, then you can work on a solution.