In a graph in a 'for' loop, how to add a legend with a variable/parameter in it?

[OmegaForce]

Hello.

Basically this is what I am trying to do:

for r=1:0.001:4
    y=somefunction(r);
    plot(x,y)
    legend('r=',r)
    pause(0.01)
end

It should make a succession of graphs, like a mini video, and we should have a legend showing the current value of the parameter 'r'.
But writing legend('r=',r) does not work.
So how do I do it?

Thanks in advance for your answers.

 

[GregLocock]

legend('r=',r)

is a bit hopeless

legend(num2str(r))

is less so


Cheers

Greg Locock


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