fopen() can only accept two inputs. The first input is filename and second is the permission. What you are doing, is to give 3 inputs to fopen(). Therefore fopen() is not working. Also each call to fopen() can only open 1 file so you will need to for loop. You need to do it like this
function [desiredOutput] = tablefliptrial(angle)
for i=angles
fileID = fopen(['distance',num2str(i),'zenith.plt']); %open file %line 2
%do a bunch of operations towards desired output
desiredOutput = [] %huge matrix
end
end
note that adding [] have converted the three inputs into one char array of the filename. You can specify the second input to fopen() as permission with which you want to open the file.
