Filter löschen
Filter löschen

Count number of rows without NaNs

5 Ansichten (letzte 30 Tage)
Pinga
Pinga am 3 Okt. 2014
Kommentiert: Pinga am 3 Okt. 2014
Hi!
I have a 10x2 cell. Each of these cells contains a 10x8 double. I'd like to count all the rows from column 2 (so Data{1,1}(:,2)) which don't have the vale "NaN" and have the value "1" in its row 8 (Data{1,1}(:,8).
What I've tried:
for n = 1:10
Result(:,n) = sum(~isnanData{1,1}(n,2),1(find(Data{1,1}(n,8) == 1)))
end
This seems not to work ("Error: Unbalanced or unexpected parenthesis or bracket.").
Thank you for any help!

Akzeptierte Antwort

Mohammad Abouali
Mohammad Abouali am 3 Okt. 2014
sum(and(~isnan(Data{1,1}(:,2)),Data{1,1}(:,8)==1))
gives you the count of rows that don't have NaN on the second column and have 1 on 8th column
if you want to run that on all elements of your cell array you can do this:
func=@(D) sum(and(~isnan(D(:,2)),D(:,8)==1));
rowCount=cellfun(func,Data);
  1 Kommentar
Pinga
Pinga am 3 Okt. 2014
Great, this works great! Thank you very much!

Melden Sie sich an, um zu kommentieren.

Weitere Antworten (1)

Image Analyst
Image Analyst am 3 Okt. 2014
You can't have ,1(find. Why is there a ( right after the 1?????

Kategorien

Mehr zu Creating and Concatenating Matrices finden Sie in Help Center und File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by