How do I subtract two 2D data sets with different resolutions?

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EM
EM 2019 年 9 月 23 日
回答済み: Andrei Bobrov 2019 年 9 月 23 日
Hi,
I have two sets of data as following:
Data set 1:
P1 162x1 double
T1 162x1 double
Data set 2:
P2 2400x1 double
T2 2400x1 double
As you can see, the resolutions of these two set of data are different. I want to subtract the plot (T1,P1) from plot(T2,P2). Since the number of elements are not similar how can I do that?
Thank you

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Andrei Bobrov
Andrei Bobrov 2019 年 9 月 23 日
PP1 = interp1(T1,P1,T2);
dP21_out = P2 - PP1;
plot(T2,P2);
hold on
plot(T2,PP1);

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