unique characters in a cell

Max
2015 11 8
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更新时间：2015 11 8
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If I have a cell
x=
'sat'
'satire'
'sa'
'do'
How would I list all the unique letters that appear from the list so say uniqueletters='satiredo'

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Geoff Hayes
Geoff Hayes 2015-11-8

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Max - is the order in your output important? If you use first convert your cell array of strings to a single string using strjoin and then use unique to determine the unique characters, you would get
unique(strrep(strjoin(x'),' ',''))
ans =
adeiorst
Note that we use strrep to replace/remove all the space characters in the joined string.

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