How to use subplot within two loops

I need one figure with multiple graphs within two loops.

for i=1:length(state)

[block]

for j=1:length(channel)

[block]

subplot(length(state),length(channel)),j)

plot(a,b)% a and b are arrays of doubles.

end

end

I want one figure with size =length(state)*length(channel); for instance I need all the graphs of state(1)within all channels in the first row etc...

But what I get is multiple figures (the lenght of state).

Answer 1

[KALYAN ACHARJYA]

Extra parenthesis here ...

subplot(length(state),length(channel)),j)
%....................................^

Try

l=1;
for....
    for..
    .....
subplot(length(state),length(channel),l)
plot(a,b) % a and b are arrays of doubles.
l=l+1;
        end
    end

[madhan ravi]

You mean parenthesis.