Why does this split of the plot lines doesn't work?
显示 更早的评论
x = linspace(0,8.7,1000)
a = zeros (1,1000)
b = zeros (1,1000)
c = zeros (1,1000)
d = zeros (1,1000)
hold on;
grid on;
%////////////////////////////////////////////////Fall 1///////////////////
figure(1);
for i = 1:1000
a(i) = 6.5*4000./((6.5-x(i)));
b(i) = 10500
c(i) = 6.5*9500./((x(i)));
d(i) = 500./(x(i)-6.5);
if a(i)<b(i)
plot(x,a,'.')
end
if d(i)<c(i)<b(i)
plot(x,c,'.')
end
if d(i)<c(i)
plot(x,d,'.')
end
plot(x,b,'.')
end
axis([0 10 0 12000])
采纳的回答
the graph function is not the same as in grafik.png and the lower area needs some improvement, but would you consider the following a start point?
x=[1:1:100];y1=x([1:1:30]);y2=x(3)*ones(1,20);y3=x([30:-1:1]);y4=zeros(1,20);
y=[y1 y2 y3 y4];y=y+10;plot(x,y,'r')
patch('XData',x,'YData',y,'FaceColor','red','LineStyle','none')
axis([0 numel(x) 0 max(y)+5])
z=y-3; % lift
delay=7
z([1:1:end-delay+1])=z([delay:1:end]) % advance
hold all
plot(x,z,'b')
更多回答（3 个）
Walter Roberson
2017-1-6
if d(i)<c(i)<b(i)
means the same as
if ((d(i)<c(i))<b(i))
The calculation d(i)<c(i) returns back 0 (false) or 1 (true), and you then compare that 0 or 1 to b(i)
1 个评论
Walter Roberson
2017-1-7
Fixing the if and adding some semi-colons produces a reasonable looking graph.
Herr Rüger
I am confident I can supply the correct answer, but i kindly ask for some clarification.
Dein script, with lines instead of dots, i have nur reduced the amount of points from 1000 down to 10:
x = linspace(0,8.7,10)
a = zeros (1,10)
b = zeros (1,10)
c = zeros (1,10)
d = zeros (1,10)
for i = 1:10
a(i) = 6.5*40./((6.5-x(i)));
b(i) = 105
c(i) = 6.5*95./((x(i)));
d(i) = 5./(x(i)-6.5);
if a(i)<b(i)
subplot(2,2,1);plot(x,a');axis([0 10 0 120]);grid on;hold all
end
if d(i)<c(i)<b(i)
figure(2);subplot(2,2,2);plot(x,c');axis([0 10 0 120]);grid on;hold all
end
if d(i)<c(i)
subplot(2,2,3);plot(x,d');axis([0 10 0 120]);grid on;hold all
end
subplot(2,2,4);plot(x,b');axis([0 10 0 120]);grid on;hold all
end
.
Aso, would you please define 'split' in the context of deine frage?
thanks for time and attention, awaiting comment
John BG
类别
在 帮助中心 和 File Exchange 中查找有关 Creating, Deleting, and Querying Graphics Objects 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
