Shade area between two curves

Hello,

I'm trying to fill the area between these two curves:

I have tried to use the jbfill.m function and to create a poligon for filling it without succes:

Any idea on how to fix the problem?

Thank you in advance for your help! (ps: I attach the .mat files of x and upper and lower curves)

Answer 1

[Simon Chan]

Use function fill

clear; clc;
load('xdata1.mat');
load('up.mat');
load('low.mat');
coord_up = [xdata1,up];
coord_low = [xdata1,low];
coord_combine = [coord_up;flipud(coord_low)];
fill(coord_combine(:,1),coord_combine(:,2),'b')

[Martina Clairand]

Awesome! Thank you

Answer 2

[Matt J]

For example,

x=linspace(0,2).';
yhigh=(x-1).^2+1;
ylow=-x+0.5;

h=area([ylow,yhigh]);
set(h(1),'FaceColor','w','EdgeColor','none')

Answer 3

[Image Analyst]

See the FAQ, not only for this very FAQQY question but for lots of other good information too:

https://matlab.fandom.com/wiki/FAQ#How_do_I_shade_the_region_between_two_curves.3F