want to skip the text lines in a file
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I have a text file in which first few lines are text. after than the numeric data is there. I want to skip the text lines.The number of text line is also not fixed. But data always start after the string "BEGIN DATA". I have tried but I am not getting any way to read the numeric data ignoring the text lines. my data file looks like
"gdeudfghdjcklkscdjdjljmdxsjdjmjmdjdckdckshfihsklkdkshncfsdjgbfsdgfvdefhvdfjcs
klhnfcjksdzhbsfvbhdslhfc.siafslfkdl;s
hfcsddjkhfcsjldifgdsfgdrjlsjfkldjksdfgvjdsgvbjdshngffgksl
dsghbfvdjkshghrjgujskdhna,h
BEGIN DATA
1
5
2
3
6
74
5
8
6
.
.
I need only
1
5
2
3
6
74
5
8
6
.
.
in a double
Thanks in advance
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Réponse acceptée
Andrei Bobrov
le 2 Nov 2012
Modifié(e) : Andrei Bobrov
le 2 Nov 2012
f1 = fopen('test2.txt'); % your data in file test2.txt
c = textscan(f1,'%s','Delimiter','\n');
fclose(f1);
out = str2double(c{1}(find(strcmp(c{1},'BEGIN DATA'))+1:end));
out = out(~isnan(out));
or
out = regexp(c{1},'^\d*$','match');
out = str2double(cat(1,out{~cellfun(@isempty,out)}));
or
out = str2double(c{1}(cellfun(@(y)all(~isletter(y))&~isempty(y),c{1})));
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