Why I am getting only points while plotting multiple graphs in single plot?

Here is my code for plotting multiple curves in a single plot, but I dont understand why I am getting only points instead of a line. Please suggest me.

ct=0

for mu=-90:1:90

 ct=ct+1
for s= [1 2 3 4 5]

c(s)=gamma(s+1)/(gamma(s+0.5)*sqrt(pi))

d(ct)=c(s).*(cos(mu.*pi/180)).^(2.*s)

plot (mu,d(ct))

hold on

end

end

Answer 1

[Star Strider]

It plots points because you give it points in your loop.

Try this:

ct=0;
muv = -90:1:90;
for mu = muv

   ct=ct+1;
  for s= [1 2 3 4 5]

c(s)=gamma(s+1)/(gamma(s+0.5)*sqrt(pi));

d(ct,s)=c(s).*(cos(mu.*pi/180)).^(2.*s);

end
end

figure(1)
plot(muv, d(:,1))
hold on
for s = 1:5
plot(muv, d(:,s))
end
hold off
grid

[Tapas]

ok thanks for the answer. i have one more query, how can i change the line style(i mean -k,--k like this) for this kind of multiple plots.

[Star Strider]

My pleasure!

There are only four LineSeries options, so they need to be continuously recycled. Only the plot in figure(1) needs to be changed, the rest of your code remains as previously posted.

This works:

linsty = {'-', '--',  ':',  '-.'};
figure(1)
plot(muv, d(:,1), '-.b')
hold on
for s = 2:5
    cs = circshift(1:4,[0 s]);
    plot(muv, d(:,s), linsty{cs(1)})
end
hold off
grid

You can do the same sort of thing for colours and markers as well, if you want to do that. They are all described in Lineseries Properties.