How to calculate the average without taking zeros values?
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afrya
am 12 Dez. 2013
Kommentiert: Dongpeng Lin
am 3 Dez. 2019
Hi, I have a large data list which has this form:
Y=
1 2 4 5 6 7 0 0 0 8 9 0 0 0 0... AVerage1=5.25
2 3 4 5 6 7 0 0 0 8 0 0 0 9 0... Average2=5.5
3 4 5 6 7 8 9 0 0 0 0 0 0 0 0... Average3=6
.
.
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I would like to calculate the average of each row wihout taking zeros values.
Thanks in advance
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Jos (10584)
am 13 Dez. 2013
Bearbeitet: Jos (10584)
am 13 Dez. 2013
No need of a loop:
A = [1 2 3 ; 10 0 30 ; 9 0 0]
rowMean = sum(A,2) ./ sum(A~=0,2)
Note that zeros do not contribute to sum(A) …
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Mech Princess
am 5 Mär. 2019
mean(nonzeros(X))
Y=[1 2 4 5 6 7 0 0 0 8 9 0 0 0 0; ...
2 3 4 5 6 7 0 0 0 8 0 0 0 9 0;...
3 4 5 6 7 8 9 0 0 0 0 0 0 0 0];
for i=1:3
mean(nonzeros(Y(i,:)))
end
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