take out numbers from string

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Jay Hanuman
Jay Hanuman il 19 Dic 2016
Commentato: Jay Hanuman il 19 Dic 2016
I attached file which contains as this
'10.0.7.4:22->10.0.8.5:26856'
'10.0.13.4:22->10.0.12.5:9997'
'10.0.9.4:22->10.0.10.5:47576'
'10.0.14.4:443->10.0.10.5:4922'
'10.0.14.4:443->10.0.10.5:20113'
'10.0.11.4:80->10.0.13.5:61779'
'10.0.10.4:22->10.0.9.5:64788'
'10.0.9.4:80->10.0.10.5:25283'
I want to take out numbers appears after 1st and 2nd colon in two different variable. i.e. A=[22 22 443 443 80 22 80] and B=[26856 9997 47576 4922....] but A and B should be in column format. how to do it.

Risposta accettata

Guillaume
Guillaume il 19 Dic 2016
There's no point in creating two different variables when it's much easier to have the output as two columns of the same variable. Here's one way to do it:
suffix = regexp(VarName6, '(?<=:)\d+', 'match'); %match sequence of numbers following a :
suffix = str2double(vertcat(suffix{:})) %convert cell array of cell arrays into one big cell array and convert strings to numeric
  2 Commenti
José-Luis
José-Luis il 19 Dic 2016
Modificato: José-Luis il 19 Dic 2016
I really should work on my regexes... +1
Jay Hanuman
Jay Hanuman il 19 Dic 2016
works Thank you.

Accedi per commentare.

Più risposte (1)

José-Luis
José-Luis il 19 Dic 2016
Modificato: José-Luis il 19 Dic 2016
I'll get you started:
data = [{'10.0.7.4:22->10.0.8.5:26856'};{'10.0.13.4:22->10.0.12.5:9997'}];
result = cellfun(@(x) regexp(x,':[0-9]+','match'),data,'UniformOutput',false);
a = cellfun(@(x) sscanf(x{1},':%d'),result);
b = cellfun(@(x) sscanf(x{2},':%d'),result);
There are other, possibly better, ways.
  2 Commenti
Guillaume
Guillaume il 19 Dic 2016
Modificato: Guillaume il 19 Dic 2016
Well, I'd certainly use captures (tokens in matlab) or look-behind to avoid returning the : as part of the match.
Capture:
regexp(x, ':([0-9]+)', 'tokens')
Look-behind:
regexp(x, '(?<=:)[0-9]+', 'match')
Jay Hanuman
Jay Hanuman il 19 Dic 2016
works Thank you.

Accedi per commentare.

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