How to sum frequency of the duplicate value in an array?
1 回表示 (過去 30 日間)
古いコメントを表示
Hello,
i have two array g=[1,3,2,2,5,4,4] and h=[2,4,5,2,7,5,3]. g is the value and h is the frequency. what i wanna do is the duplicate value only have one value and also the frequency of the duplicate value will be summed. it's like g=[1,3,2,5,4] and h=[2,4,7,7,8]. i try this code to delete the duplicate
i = g([diff(g)~=0, true]);
but, i don't know how to sum the frequency of the duplicate value? please help me.
Thanks in advance
0 件のコメント
回答 (1 件)
Azzi Abdelmalek
2013 年 4 月 7 日
編集済み: Azzi Abdelmalek
2013 年 4 月 7 日
[a,b]=unique(g)
new_g=g(sort(b))
new_h=arrayfun(@(x) sum(h(g==x)),new_g)
1 件のコメント
Azzi Abdelmalek
2013 年 4 月 7 日
Or if you have new version of Matlab
[new_g,~]=unique(g,'stable')
new_h=arrayfun(@(x) sum(h(g==x)),new_g)
参考
カテゴリ
Help Center および File Exchange で Operators and Elementary Operations についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!