How to replace name with number

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Light.16
Light.16 am 6 Okt. 2016
Kommentiert: Guillaume am 6 Okt. 2016
Hello guys !!
I've a question for you. I got a cell array like that x = {'white' 'red' 'blue' 'yellow'}. My intention is to replace my cell array with a number vector, so that white become 1, red become 2.. and so on. How can i do that?
ty

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Thorsten
Thorsten am 6 Okt. 2016
[~, ~, xnum] = unique(x, 'stable')
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Light.16
Light.16 am 6 Okt. 2016
which tipe of function is that? IT WORKS!!! :D but how did you do that =???
Guillaume
Guillaume am 6 Okt. 2016
In matlab type
doc unique
to read its documentation

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