How to do average of different arrays of a matrix?

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AS
AS 2020-1-8
评论： AS 2020-1-8
I have a matrix having dimension 3490 by 63 and I want make it 698 by 63 by taking average of five data points of different row in a column. For single column my code is working but I want do the same for rest of 62 columns. please help me on this.
clc;clear all;close all;
load data1.dat;
X=data1;
X1=X(:,1)
n=1;
m=5;
sum=[ ] ;
fid1=fopen('smthdata1.dat','w');
for i=1:698;
sum=0;
for j1=n:m
sum=sum+X1(j1);
end
ad_n=(sum./5);
fprintf(fid1,'%d \n',ad_n);
n=m+1;
m=m+5;
i=i+1;
end
fclose(fid1);

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采纳的回答

Hiro Yoshino
Hiro Yoshino 2020-1-8
编辑：Hiro Yoshino 2020-1-8
Stephen Cobeldick is right.
Try this:
% X --> 3490 x 63 matrix
X = reshape(X, 5, 63, 698);
X = mean(X);
X = reshape(X, 698, 63);

更多回答（1 个）

KALYAN ACHARJYA
KALYAN ACHARJYA 2020-1-8
编辑：KALYAN ACHARJYA 2020-1-8
Yes, Stephen is rightly said, other options, array function or you can use this custom function for Block-wise Operations (5,1)
mat_data=rand(3490,63);
result=sepblockfun(mat_data,[5,1],'mean');

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