Function for Calculating Moving sum
3 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
Is there any function to calculate moving sum of a vector? I use "smooth" for calculating the moving average of a vector
1 Commento
F.
il 16 Lug 2012
I'm sorry but I don't understand "moving sum of a vector" ... Could you explain it and give a little exemple ? thanks
Risposta accettata
Image Analyst
il 16 Lug 2012
Modificato: Image Analyst
il 16 Lug 2012
For a "moving" sum - the sum in a window - you can use conv(), or conv2() in two dimensions:
windowWidth = 15; % or whatever.
movingSum = conv(oneDsignal, ones(1, windowWidth));
for the moving average:
windowWidth = 15; % or whatever.
movingAverage = conv(oneDsignal, ones(1, windowWidth) / windowWidth);
4 Commenti
Image Analyst
il 12 Ott 2017
Why wouldn't it? If you replace each element with the average of elements around it, which is what conv() can do, then that's the moving average.
Più risposte (1)
Jonathan Sullivan
il 16 Lug 2012
help filter
doc filter
Example: Take a 10 element moving average.
x = rand(1e3,1);
n = 10;
x_moving_average = filter(ones(1,n)/n,1,x);
0 Commenti
Vedere anche
Categorie
Scopri di più su Logical in Help Center e File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!