average every n rows of data in a timeseries
in [Matlab]
|
From: Ryan Morse on 10 Jun 2010 13:30 I have velocity data with measurements made every 6 minutes for several months (uniform time). Each 6-minute interval is sampled with a burst of 10 samples, thus my data vector is 10x longer than my time vector (which is seperate from this matrix) data <69590x18 double> time <6959x12 double> I need to average every 10 rows (for 1:length(data)) of the data matrix to get a final matrix size to 6959x18. I am sure there is a really easy way to do this, but I cant seem to come up with it... I thought this would work: m=1:10:length(data); avg= mean(data(m,:)); except that 'avg' is returned as a 1x18 matrix... Any help is most appreciated.
From: Oleg Komarov on 10 Jun 2010 14:05 "Ryan Morse" <remorse(a)odu.edu> wrote in message <hur7fg$6gp$1(a)fred.mathworks.com>... > I have velocity data with measurements made every 6 minutes for several months (uniform time). Each 6-minute interval is sampled with a burst of 10 samples, thus my data vector is 10x longer than my time vector (which is seperate from this matrix) > > data <69590x18 double> > time <6959x12 double> > > I need to average every 10 rows (for 1:length(data)) of the data matrix to get a final matrix size to 6959x18. > > I am sure there is a really easy way to do this, but I cant seem to come up with it... > > I thought this would work: > > m=1:10:length(data); > avg= mean(data(m,:)); > > except that 'avg' is returned as a 1x18 matrix... > > Any help is most appreciated. avg = reshape(mean(reshape(data,10,[])),[],18); Oleg
From: Ryan Morse on 10 Jun 2010 14:45 "Oleg Komarov" <oleg.komarovRemove.this(a)hotmail.it> wrote in message <hur9h2$lv0$1(a)fred.mathworks.com>... > "Ryan Morse" <remorse(a)odu.edu> wrote in message <hur7fg$6gp$1(a)fred.mathworks.com>... > > I have velocity data with measurements made every 6 minutes for several months (uniform time). Each 6-minute interval is sampled with a burst of 10 samples, thus my data vector is 10x longer than my time vector (which is seperate from this matrix) > > > > data <69590x18 double> > > time <6959x12 double> > > > > I need to average every 10 rows (for 1:length(data)) of the data matrix to get a final matrix size to 6959x18. > > > > I am sure there is a really easy way to do this, but I cant seem to come up with it... > > > > I thought this would work: > > > > m=1:10:length(data); > > avg= mean(data(m,:)); > > > > except that 'avg' is returned as a 1x18 matrix... > > > > Any help is most appreciated. > > > avg = reshape(mean(reshape(data,10,[])),[],18); > > Oleg Worked like a charm, thank you very much!
|
Pages: 1 Prev: Slider Listening/Callback not working Next: GUI control - how to test for button push |