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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采纳的回答
Azzi Abdelmalek
2013-5-26
编辑:Azzi Abdelmalek
2013-5-26
out=[data(any(data==17,2),:);data(any(data==10,2),:)]
%or
out=data(any(ismember(data,lookfor),2),:)
4 个评论
the cyclist
2013-5-27
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.
更多回答(1 个)
the cyclist
2013-5-26
编辑:the cyclist
2013-5-26
rowIndex = ismember(data(:,1),lookfor);
answer = data(rowIndex,:);
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