How to separate a vector into bins and average each bin
21 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I have a vector A (exemplified below) which contains the size of pores and i want to create a vector which bins the data in A and creates a new vector containing the number of pores within a bin size multiplied by the size of these pores (for example by taking the average out of the values within each bin)
Example:
A = [1 1 1 1 1 1 2 2 2 3 3 3 3 4 4 4 4 4 5 5 6 6 7 7 7 8 9 10]
Lets say that i want the bin size to be 2, then i want something like:
B = [12 32 22 29 19]
Any suggestions would be greatly appriciated.
0 commentaires
Réponse acceptée
Cris LaPierre
le 1 Août 2022
I don't exactly follow how you get from A to B, and I'm fairly certain there isn't a single function that will get you what you want. Here's one possible solution based on what I understood.
A = [1 1 1 1 1 1 2 2 2 3 3 3 3 4 4 4 4 4 5 5 6 6 7 7 7 8 9 10];
% Use discretize to split the data into bins with width of 2
b = discretize(A,1:2:11)
% Use splitapply to calculate the mean of each bin
mn = splitapply(@mean,A,b)
% use splitapply to count the number of points in each bin
cnt = splitapply(@numel,A,b)
% multiply the mean and the count to get B
B = mn.*cnt
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Resizing and Reshaping Matrices dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!