Finding unique set from large dataset
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Sanjana Sankar
le 18 Juil 2019
Commenté : Sanjana Sankar
le 19 Juil 2019
Hello!
How would one go about to find a unique set of variables that can depict shortly which variables are used in a large dataset using a matlab code?
For example if the english dictionary is my large dataset, I want the output to be the 26 alphabets-saying these are the unique variables used in your large dataset.
Another example
If x = {"abc", "bcd", "ded"}
I want the output as {"a","b","c","d","e"}
Thanks in advance!
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madhan ravi
le 18 Juil 2019
a = cellfun(@(z)regexp(z,'.','match'),x,'un',0);
Output = num2cell(unique([a{:}]))
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Plus de réponses (2)
Waqar Ali Memon
le 18 Juil 2019
Bruno Luong
le 18 Juil 2019
Modifié(e) : Bruno Luong
le 18 Juil 2019
x = ["abc", "bcd", "ded"] % no need using curly bracket for strings
string(unique(cat(2,x{:}))')'
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