How to put a red border area in the graph ?

How to put a red border area in the graph ? I made a graph using this code:

figure(1);

fill([x; flipud(x)],[y1; flipud(y2)],'g'); hold on;

This is the graph I made:

The edge of the green area is black, but I would like the edge of the area was red. How can I do this?

[sixwwwwww]

Can you show your graph?

[Jesus]

this is my graph:

Answer 1

[sixwwwwww]

you can do it as follows:

figure(1);
fill([x; flipud(x)],[y1; flipud(y2)],'g'), hold on,
plot(x, y1, flipud(x), flipud(y2), 'r')

I hope it works. Good luck!

[Jesus]

sixwwwwww, thanks for the reply.

[sixwwwwww]

You are welcome