Question regarding a find function(search for data)
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Hi, I have the following matrix:
data=[10 1 2 3; 11 4 5 6; 12 7 8 9; 17 4 5 6]
I want to do a query with the following matirx:
built a matrix base on the element value 10 and 17
lookfor=[10;17]
And I'm looking for the following result(values associate with 10 and 17 in this case)
anwser=[10 1 2 3; 17 4 5 6]
I'm looking for a dynamic anwser, data matrix and lookfor matrix will vary and be much more bigger.
thank you in advance for your precious anwsers.
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Réponse acceptée
Azzi Abdelmalek
le 26 Mai 2013
Modifié(e) : Azzi Abdelmalek
le 26 Mai 2013
out=[data(any(data==17,2),:);data(any(data==10,2),:)]
%or
out=data(any(ismember(data,lookfor),2),:)
4 commentaires
the cyclist
le 27 Mai 2013
Looks like he wants to find rows that start with 10, and sum them into one row. Then find rows that start with 11, and sum them.
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the cyclist
le 26 Mai 2013
Modifié(e) : the cyclist
le 26 Mai 2013
rowIndex = ismember(data(:,1),lookfor);
answer = data(rowIndex,:);
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