plotting many things in one window

Question

cgo 2015-1-6

评论： Star Strider 2015-1-7

Hi,

I have X, which is a 100x100 matrix. I would like to plot each row with respect to the integers 1:100. Of course I could write the following:

Plot(1:100, x(1,:), 1:100, x(2,:), ....)

Is there a shorthand to this ? Thanks

Answer 1

Star Strider 2015-1-6

One options is to just give it your vector and the matrix:

x = linspace(0,99);
y = rand(100,100);
figure(1)
plot(x, y)
grid

Another option is the ribbon function.

cgo 2015-1-7

I'm afraid this situation is a little bit too simplistic. So I will have to ask again.

This time, my matrix A is of size n x 100. I want to plot each row of the matrix vs an independent variable t = 1:100.

For example, if I have infinite time, then I will write it as

Plot(t, A(1,:), t, A(2,:), t, A(3,:)…)

I can't figure out how to write it in short hand, if A is not a square matrix. Thanks

Star Strider 2015-1-7

The matrix doesn’t have to be square. MATLAB will plot it correctly so long as one of its dimensions matches the length of your ‘x’ vector:

t = 1:100;
y = rand(50,100);
figure(1)
plot(t, y)
grid