Grabbing numbers from a string
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
matlabuser12
le 23 Juin 2015
Commenté : matlabuser12
le 23 Juin 2015
I have a data set where some numbers are numbers like (124,456, 987) and others are numbers with an letter on them like (123P,232P) so when i read in [Data,Text] = xlsread(...) half my data set goes to data and the other half to text. The data variable puts NaN where the 124P type data was, how can I extract the number off the P and put it where the NaNs are?
2 commentaires
per isakson
le 23 Juin 2015
Modifié(e) : per isakson
le 23 Juin 2015
As a start, replace
[Data,Text] = xlsread(...)
by
[~,~,raw] = xlsread(___)
that makes it easier to keep track of the "cell" positions.
Then upload a sample of raw.
If the data is in a text file, it might be a good idea to bypass Excel.
Réponse acceptée
Azzi Abdelmalek
le 23 Juin 2015
Modifié(e) : Azzi Abdelmalek
le 23 Juin 2015
s={115;118;118;'121';118;'126P';132}
idx=cellfun(@isstr,s)
b=s(idx)
c=regexp(b,'\d+(\.\d+)?','match')
d=cellfun(@str2double,c,'un',0)
s(idx)=d
Or
s={115;118;118;'121';118;'126P';132}
out=cellfun(@(x) str2double(regexp(num2str(x),'\d+(\.\d+)?','match')),s)
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Logical dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!