Hold on Not showing all of my plots on one graph

Question

Ari Henderson 2020-2-4

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/503612-hold-on-not-showing-all-of-my-plots-on-one-graph

回答： Ari Henderson 2020-2-4

采纳的回答： Alex Mcaulley

Q = .07; %(kg/s)

H = 225; %(m)

x = 0.2:10^-3:100;

Bx = 0.2:10^-3:100;%(km)

y = 0 ;%(km)

z = 0; %(km)

U = 3.1 ;%(m/s)

a = 68;

b = .894;

if x < 1 %(km)

c = 33.2;

d = .725;

f = -1.7;

else c = 44.5;

d = .516;

f = -13;

sigmay = a*x.^b;

sigmaz = c*x.^d + f;

Ba = 156;

Bb = .894;

if x < 1 %(km)

Bc = 106.6;

Bd = 1.149;

Bf = 3.3;

else Bc = 108.2;

Bd = 1.098;

Bf = 2.0;

Bsigmay = a*Bx.^b;

Bsigmaz = c*Bx.^d + f;

loglog(Bx,Bsigmay,'b')

hold on

loglog(Bx,Bsigmaz,'r')

hold on

loglog(x,sigmay)

hold on

loglog(x,sigmaz)

end

I am trying to plot for lines on one graph but only two lines are showing up. I have used the "hold on" command but it still only plots two lines instead of four.

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Answer 1

Alex Mcaulley 2020-2-4

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/503612-hold-on-not-showing-all-of-my-plots-on-one-graph#answer_413731

Take a look at the variables you are plotting, they are duplicated. I mean Bsigmay is equal to sigmay, Bsigmaz is equal to sigmaz and Bx is equal to x. Then, your lines are overlapped and you can see just two lines.