MATLAB: How to define a variable as an integer that’s equal to or greater than zero

if statementintegervariable

I have the following if statements:
if struct_idx == 1 + 4*n % where n is an integer equal to or greater than zero



            measurement_data(struct_idx).unit = 'SD1';
elseif struct_idx == 2 + 4*n % where n is an integer equal to or greater than zero
            measurement_data(struct_idx).unit = 'SD2';
elseif struct_idx == 3 + 4*n % where n is an integer equal to or greater than zero
            measurement_data(struct_idx).unit = 'SD3';
else struct_idx == 4 + 4*n % where n is an integer equal to or greater than zero
            measurement_data(struct_idx).unit = 'SD4';
end
How can I turn the commented parts into working code?

Best Answer

rest = mod(struct_idx,4);
if rest == 1
  ...
elseif rest == 2
  ...
elseif rest == 3
  ...
elseif rest == 0
  ...
end
Related Question