"someone" wrote in message <email@example.com>... > "Puneet" wrote in message <firstname.lastname@example.org>... > > Hi - this is begginers question. > > I have a data set - 16 rows and 16 columns - I would like to average every 2 points to get an 8 rows 8 columns matrix. > > > > This is a learning phase so I can run something similar later for larger data sets. > > Thanks. > > %Perhaps something like: > > a = rand(16,16); > b = a(1:2:15, 1:2:15); % odd rows & columns > c = mean(b(:)); > > % may not be most efficient, > % but you should get the idea > > % I'll leave the even rows & columns to you > % (you didn't specify which you wanted).
Actually I realized I misread your OP. But even so, going from a 16X16 to a 8X8 matrix would average every fourth point. (Or something like that.) So, I guess I don't understand the OP.