MATLAB Answers

hold on for double plots in one loop

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Zeynab Mousavikhamene
Zeynab Mousavikhamene on 5 Nov 2019
Commented: ME on 5 Nov 2019
I am making two plots in a for loop one after an other. When the loop goes for the next i, I need to hold on the plot becaue I want to plot x1 and y1 of the i=1 to i=n in one axis but because there is an other plot after it, I do not know how to do that so that x1 and y1 of i=1 to n are plotted in one figure and x2 and y2 of i=1 to n are plotted in an nother figure.
For i=1:n
do some calc.
figure
plot(x1,y1)
if I hold on here, the next figure may have be plotted in the first one. But I need to have figures of i=1 to n plotted in one axis.
figure
plot(x2,y2)
end

  1 Comment

darova
darova on 5 Nov 2019
IF you want to plot in different figure
figure(1)
figure(2)

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Answers (2)

T.Tomita
T.Tomita on 5 Nov 2019
Edited: T.Tomita on 5 Nov 2019
Try changing the plot target by referring to the link below.

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ME
ME on 5 Nov 2019
You just need to move the figure command or you’ll get two new figure windows. This would be something like:
figure
for i=1:n
do some calc.
plot(x1,y1)
hold on
plot(x2,y2)
end
or alternatively put both of the plotting commands into one:
plot(x1,y1,x2,y2)

  2 Comments

Zeynab Mousavikhamene
Zeynab Mousavikhamene on 5 Nov 2019
@ME thanks but it was not answer to my question. I said in the question, I want to have TWO plots one is for x1 and y1 and the other one is for x2 and y2. For x1 and y1 of ALL i from 1 to n I want to plot x1 and y1 on the same figure and for ALL i from 1 to n I want to plot x2 and y2 on an other figure.
ME
ME on 5 Nov 2019
Apologies, I think I see what you mean now. That just shows I shouldn't answer questions before a morning coffee!
I think this should do what you want:
for i=1:n
do some calc.
figure(1); hold on;
plot(x1,y1)
figure(2); hold on;
plot(x2,y2)
end

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