can't get my ploy function to plot all the vectors at once

built this function to plot x1st though x5th

function [ pk ] = myployplotter( n,x )
  for k=1:n
    pk=x.^k;
    plot(x,pk)
  end
end

but it only plots the 5th value, with k=1:n shouldn't it plot all 5 at once? If not how can I fix it?

Answer 1

[Geoff Hayes]

Henry - you need to add a hold on statement to your code so that subsequent calls to plot do not delete the previous graphic.

Answer 2

[Stephen23]

MATLAB can be written much more efficiently without loops:

function M = myployplotter(n,x)
M = bsxfun(@power,x(:),1:n);
plot(M);
end

And tested:

myployplotter(4,[0,1,3,0,2,1,2])

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