so heres the data file
outdoor = xlsread('outdoorall.xlsx','G2:H52364');
dt=diff(b(:,2))/0.00138889; % difference in indoor temp divided by time in hrs(=5secs)
c=dt./(b(2:end,2)-a(2:end,2));%diff(a) will be one less than matrix a and b
I get an error that the vectors dont match up. I asked my supervisor this and he said to take a look at diff. I didn't understand as I'm not too good at matlab. I've quoted the time, temperatures correctly.