Filling between two lines

问题

I've plotted two lines based on some scattered points, however, I now need to fill the area between the two lines.

counts_dataset = dataset('file','file.txt','Delimiter','\t');
x = counts_dataset.x;
y1 = counts_dataset.y1;
y2 = counts_dataset.y2;

line1 = line(x, y1,'Color', [.8 .8 .8])
line2 = line(x, y2,'Color', [.8 .8 .8])

I am now trying to fill in the region between the two lines as so:

fill([x fliplr(x)],[y2 fliplr(y1)],'c')

However, this gives me this plot:

disregard the scatter points

Am I using the fill function incorrectly? How can I shade between the two lines?

回答1:

Probably you have some trouble with your data. The following code does exactly what you want:

x = 1:10;
y1 = sin(x) + 3;
y2 = sin(x);
fill([x fliplr(x)], [y2 fliplr(y1)], 'c')

来源：https://stackoverflow.com/questions/36555528/filling-between-two-lines