How to sum frequency of the duplicate value in an array?

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

Answer 1

[Azzi Abdelmalek]

[a,b]=unique(g)
new_g=g(sort(b))
new_h=arrayfun(@(x) sum(h(g==x)),new_g)

[Azzi Abdelmalek]

Or if you have new version of Matlab

[new_g,~]=unique(g,'stable')
new_h=arrayfun(@(x) sum(h(g==x)),new_g)