Re_1, Re_6, etc.. are have different dimensions i.e. Re_1 = 5000:20000, Re_6 = 200:10000, etc. I wrote this for loop to get the mean values at each value for Reynolds number. How can I preallocate this?
tot_Re = [Re_1 Re_6 Re_8 Re_9 Re_12 Re_13];
tot_Nu = [Nu_1 Nu_6 Nu_8 Nu_9 Nu_12 Nu_13];
Re_mean = 1:max(tot_Re);
for i = 1:max(tot_Re)
k = find(tot_Re == i);
Nu_mean(i) = mean(tot_Nu(k));