How to merge data in excel files?

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shazwani amran
shazwani amran 2013-4-9
below is sample data from an excel file that I need to merge.
1 1 1 2 3 3 4 4 4
1.2 4.4 7.1
2.5 5.2 5.5
3.9 6.5 4.3
the above data need to be merge according to the first row which have same value to become like this:
1 2 3 4
1.2 4.4 7.1
2.5 5.2 5.5
3.9 6.5 4.3
I'm really appreciate someone that can help me.thank you.

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回答（1 个）

Iman Ansari
Iman Ansari 2013-4-9
编辑：Iman Ansari 2013-4-9
Hi
Data=xlsread('name.xlsx');
Data(isnan(Data))=0;
for i=1:4
Output(:,i)=[i; sum(Data([false true true true],Data(1,:)==i),2)];
end
  2 个评论
shazwani amran
shazwani amran 2013-4-21
Hi, how if the data was like below. is it possible for me to merge them?
5 5 5 8 7 7 9 9 9 .....(and so on)
1.2 4.4 7.1
2.5 5.2 5.5
3.9 6.5 4.3
after importing the excel file that contained data like above, the data need to be merge according to the first row which have same value to become like this:
5 8 7 9
1.2 4.4 7.1
2.5 5.2 5.5
3.9 6.5 4.3
Iman Ansari
Iman Ansari 2013-4-21
clear
Data=xlsread('name.xlsx');
Data(isnan(Data))=0;
n=nnz(diff(Data(1,:),1,2))+1;
Idx=[1 find(diff(Data(1,:),1,2))+1];
for i=1:n
Output(:,i)=[Data(1,Idx(i)); sum(Data(2:4,Data(1,:)==Data(1,Idx(i))),2)];
end

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