Question

In Matlab, I have a function:

function [ Result ] = Calc_Result(A, B, C, D)

How do I graph the output of this function, for values A=0.00 to A=1.00, in steps of 0.01? Variables B,C,D are constants.

If the function returns NaN at any point on the graph, I need some method handling this (Matlab shouldn’t fall over).

Answer 1

As strictlyrude27 said, if your function can deal with vectorisation, you can just use

x=0:0.01:1;
y=Calc_Result(A, B, C, D);
plot(x,y,'.-');

If not, you can use arrayfun to avoid a loop:

x=0:0.01:1;
y=arrayfun(@(A) Calc_Result(A, B, C, D),x);
plot(x,y,'.-');

plot deals with NaNs gracefully by default (it doesn’t plot them and breaks the line it draws at every NaN).