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how to compare multiple plots of filter by different colors in a same window?

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Filter design
Filter design 2013-9-3
i just have designed few different filters using FDA tool and i want to see them together in a single window by different colors. How it can be done? and how we can generate the transfer function of a filter directly from a FDA tool?

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Iain
Iain 2013-9-3
Generic answer:
t = 0:timestep:time_end; % supply your own "time" values
x1 = sin(t); % output of filter 1
x2 = cos(4*pi*t); % output of filter 2
Then:
plot(t,x1,t,x2)
OR
plot(t,x1,'r') % red
hold on
plot(t,x1,'m') % magenta
OR
plot(t,x1) % default (blue)
hold all
plot(t,x2) % default 2nd colour (red)

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