清空筛选条件
清空筛选条件

Plot a lot of interval

1 次查看（过去 30 天）
hasan s
hasan s 2021-6-8
编辑： hasan s 2021-8-14
Hello, every one
I need graph contain all values of [a,b,c,d] of ...trapezoid function(which is in the picture)...
I tried the ready function which defined in matlab
https://ch.mathworks.com/help/fuzzy/trapmf.html
in the attach file...
but this not plot all the [a,b,c,d], plot only one case...
please...is possible to plot all [a,b,c,d], in the same graph with different colors as possible if can in matlab??..
If any Prof. can help me...thanks alots
  2 个评论
dpb
dpb 2021-6-9
Can't even begin to read the image so didn't try...but you can plot as many lines on a given axes as you wish. See
hold on
and examples in graphics documentation for plot
hasan s
hasan s 2021-6-9
thanks prof. for your reply
I tried hold on in 2 or 3 axes as points, but I dont know how used hold on to this like[a,b,c,d] contain lines ,as trapezoid

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2021-6-9
Ran in:
format long
m=100;
v1=unifrnd(0,1,1,m);
l1=unifrnd(0,1,1,m);
u1=unifrnd(1,2,1,m);
a = 0.1*l1';
b = 2*v1';
c = 3*v1';
d = 4*u1';
x = 0:0.1:10;
part0 = 0 .* (x<=a | x >= d);
part1 = 1 .* (x>b & x < c);
part2 = (x-a)./(b-a) .* (x > a & x <= b);
part3 = (d-x)./(d-c) .* (x > b & x <= d);
f = part0 + part1 + part2 + part3;
plot(x, f); ylim([-0.1 1.1*max(f(:))])
The reason this does not look like you expect is that your equations do not define a trapazoid shape: your second and fourth conditions overlap. The change to the fix the equations would be easy. I programmed based upon the definition of f(x), not based upon the guidance that you were expecting a trapazoid.
  9 个评论
显示 7更早的评论
Walter Roberson
Walter Roberson 2021-8-11
Ran in:
format long
m=100;
v1=unifrnd(0,1,1,m);
l1=unifrnd(0,1,1,m);
u1=unifrnd(1,2,1,m);
a = 0.1*l1';
b = 2*v1';
c = 3*v1';
d = 4*u1';
x = 0:0.1:10;
part0 = 0 .* (x<=a | x >= d);
part1 = 1 .* (x>b & x < c);
part2 = (x-a)./(b-a) .* (x > a & x <= b);
part3 = (d-x)./(d-c) .* (x > b & x <= d);
f = part0 + part1 + part2 + part3;
plothandles = plot(x, f); ylim([-0.1 1.1*max(f(:))])
cmap = parula(m);
for K = 1 : m
plothandles(K).Color = cmap(K,:);
end
Each line is colored according to its position in the colormap, cmap, that you create.
Of course with 100 lines, it is going to be difficult to tell them apart anyhow...
hasan s
hasan s 2021-8-11
编辑：hasan s 2021-8-14
Excellent programming
thanks alot prof. Walter for your help

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 2-D and 3-D Plots 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by