What is the function for varargin?

I run a script and the error message was

">> quiver_bak(varargin)
Attempt to execute SCRIPT varargin as a function:
C:\Program Files\MATLAB\R2017b\toolbox\matlab\lang\varargin.m".

What i have to type as a function?

[Stephen23]

@Amra Rajuli: note that the code you have uploaded is clearly labelled "Copyright 1984-2002 The MathWorks, Inc.", and you have probably broken your license conditions by distributing TMW code. I would suggest that you remove copyright code from your question.

[Amra Rajuli]

Thank you, I will remove the attachment

[Walter Roberson]

(I already removed it)

Answer 1

[Stephen23]

Do NOT use varargin outside of any function: it only works inside of a function. Call your function like this:

   quiver(X,Y,...)

Where X, Y, etc are any input variables or values that the function needs.

The code you attached (a copyrighted copy of quiver) has this example, note how it does not use the term varargin anywhere:

[x,y] = meshgrid(-2:.2:2,-1:.15:1);
z = x .* exp(-x.^2 - y.^2); [px,py] = gradient(z,.2,.15);
contour(x,y,z), hold on
quiver(x,y,px,py)

[Amra Rajuli]

Thank you