Question

i need help editing a code in matlab. i have a function that take a input N. If N is not given, how do i set N to 1000.

Answer 1

The MATLAB function nargin returns the number of input arguments, while the function nargout gives the number of output arguments.

Example

Write a function vmax with two input arguments x and ipr. If the second input argument ipr is not present when the function is called, set its value to 0.

If there are fewer than two input arguments (in other words, 0 or 1 input arguments), then set the value of ipr to 0.

function vs = vmax(x, ipr)

if nargin < 2

ipr = 0;

end;

If a function is called with more input arguments than in its definition, then MATLAB produces an error message.

In your case, you would need to do something like this:

if nargin < 1

n = 1000;

end;