Creating a function that returns a graph

Hello.

I have to study the displacement of a sheet pile. At end of computation, I have matrices of size (N_ELEMENTS,N_TIME), for each degree of freedom and for time. I'm making a plot animation (with a plot into a loop). But this plot will be used in other codes, so instead of copy/paste I would like a function []animation = (...) that gives the plot.

In my code I will then have :

. . . animation(t,water_height,disp_nodes,N,NDoF,size_el,1); . . .

But I have this error : ??? Subscript indices must either be real positive integers or logicals.

Maybe someone know how to call this function properly ? Thanks !

Answer 1

[Image Analyst]

Find out which index has a fractional part or is negative by using this link: http://blogs.mathworks.com/videos/2012/07/03/debugging-in-matlab/.

"[]animation = (...)" is not valid syntax. This would be valid:

To call in the main function

results = animation(t,water_height,disp_nodes,N,NDoF,size_el,1);

To declare the function:

function results = animation(t,water_height,disp_nodes,N,NDoF,size_el, someFlag)
% Code for it follows...

It also looks possible that MATLAB might think your animation is a 7 dimensional array rather than a function , which would happen if animation function was not declared or was out of scope or was not on the search path.

[Freddy]

Thanks it works. The problem was exactly what you mentioned at end, Matlab understood "animation" as a variable, and I had the error of indices because of the different sizes of arguments of the function.