finding most common letter in a string

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Max
Max 2015-11-12
编辑： Azzi Abdelmalek 2015-11-12
say I have a string y='asdqwdqwdasasdasdaasasdwdqwd' How do I find the letter that occurs the most in y which is clearly 'a' so have something like mostcommonletter='a'

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Azzi Abdelmalek
Azzi Abdelmalek 2015-11-12
编辑：Azzi Abdelmalek 2015-11-12
y='asdqwdqwdasasdasdaasasdwdqwd'
[ii,jj,kk]=unique(y)
a=accumarray(kk,1)
idx=a==max(a)
out=ii(idx)

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