How to combine graph and merge different array?

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KH
KH 2013-6-23
评论： Walter Roberson 2021-5-29
Hi all,
Can someone help me with this?
Let's say I have in an m-file two corresponding array of a = [2 3 5 9 10 20 27 34] & b = [0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8] and have a graph of a vs b
and in another m-file i have array of c = [67 79 80 99] & corresponding array d = [1.0 1.1 1.2 1.3] and a graph of c vs d
How to I join the graph together since i'll don't have a value for 0.9 in the x-axis? Secondly, how can I combine both both a & c vector in the same array and b & d in the same array?
Thanks a lot.

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回答（1 个）

Eli Duenisch
Eli Duenisch 2013-6-23
编辑：Eli Duenisch 2013-6-23
Why do you want to combine the vectors a&a, b&d if you want to plot two graphs? If your goal is to plot two graphs into one axis, try this:
Get the data into one workspace: If both m files are scripts, just run the scripts. If one of the m-file is a function you can pass the arrays it contains to the other m-file as return values. You can also make both files functions. Or maybe use a third file for the plot code.
Plotting two graphs into one axis: Lets say all of your arrays are in the same workspace. Now you have various possibilities to plot the graph:
hold on
plot(a,b)
plot(c,d)
hold off
Or with two y axis use:
plotyy(a,b,c,d)
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Süleyman burak Dogaroglu
Süleyman burak Dogaroglu 2021-5-29
I suppose solved like;
function [PQ CRT TSP] = yieldLocus(po, m, stage)
p = 0;
dp = 0;
for i = 1 : stage+100
q = sqrt((po*p-p^2)*m^2);
P(1,i) = p;
PQ(1,i) = q;
p = p + po/stage;
end
for j = 1 : stage+100
pf = po + dp;
DP(1,j) = pf;
qf = 3 * dp;
TSP(1,j) = qf;
dp = dp + po/stage;
end
p_ = 0;
for k = 1 : stage+100
CRT(1,k) = p_*m;
p_ = p_ + po/stage;
end
hold on
plot(P,PQ,'r');
plot(P,CRT,'g');
plot(DP,TSP,'b');
hold off
end
Walter Roberson
Walter Roberson 2021-5-29
When you "hold on" you freeze the xlim and ylim. So after you plot, do
xlim auto
ylim auto

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