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code wont match dimensions

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Boss Man
Boss Man 2019-12-24
评论： Boss Man 2019-12-24
a=[00.00 22.3
00.06 22.4
00.11 22.4
00.16 22.5
00.21 22.4
00.26 22.4
00.31 22.3
00.36 22.2
00.41 22.2
00.46 22.1
00.51 22
00.56 21.9];
b=[00.00 3.8
00.05 3.8
00.10 3.8
00.15 3.7
00.20 3.6
00.25 3.6
00.31 3.5
00.36 3.5
00.41 3.4
00.45 3.4
00.50 3.3
00.55 3.3];
%matrix a of indoor temp
%matrix b of outdoor temp
dt=diff(a)/5;
c=dt./(b(1:end-1)-a(1:end-1));%diff(a) will be one less than matrix a and b
plot(c);
I want to display the left hand side of the matrix on the x-axis, don't want it involved in the calculations of c and dt. how would i do that?
thanks for any help given

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David Hill
David Hill 2019-12-24
dt=diff(a(:,2))/5;
c=dt./(b(2:end,2)-a(2:end,2));%diff(a) will be one less than matrix a and b
plot(a(2:end,1),c);
This should work for you.

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