How to remove rows with any string from matrix

Hello,
I'm trying to remove any rows that have any strings in them in my matric, for example:
name and other jibberish
1 0
0 1
0 2
another name and other words
0 3
1 0
other tosh
and change this to just:
1 0
0 1
0 2
0 3
1 0
so you can see, it doesn't matter what the string is, its not specific to what the letters in the string are, I just want it removed. Is there an easy way of doing this?
Thanks

3 commentaires

José-Luis
José-Luis le 25 Juin 2014
Is your matrix a cell array? Or are you trying to import a text file?
I'm trying to import a text file, which in itself is causing me a problem as the rows with strings have different column lengths than the rows with values which have the same column lengths!
Jos (10584)
Jos (10584) le 25 Juin 2014
For this, my solution should work.

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 Réponse acceptée

Jos (10584)
Jos (10584) le 25 Juin 2014
Modifié(e) : Jos (10584) le 25 Juin 2014
Assuming that the rows are lines of a text file:
T = textread('data.txt','%s','delimiter','\n')
T2 = T(~cellfun(@(x) any(isletter(x)),T)) % still strings
VAL = str2num(char(T2)) % numbers

1 commentaire

This works well. But a note to anyone who wants to use this.. makes sure your value do not contain E (obviously) in replacement of decimal places.
Thank you

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Plus de réponses (1)

Azzi Abdelmalek
Azzi Abdelmalek le 25 Juin 2014
Modifié(e) : Azzi Abdelmalek le 25 Juin 2014
fid = fopen('file.txt');
res={};
while ~feof(fid)
res{end+1,1} =fgetl(fid);
end
fclose(fid);
res(cellfun(@(x) any(isletter(x)),res))=[]
out=cell2mat(cellfun(@str2num,res,'un',0))

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