How to convert cell array containing text to numbers?
6 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Abhishek Chakraborty
am 3 Apr. 2021
Bearbeitet: Matt J
am 3 Apr. 2021
I have a cell array containing a mixture of numbers and letters. I want to remove all the letters and keep only the numbers in it. The cell array is:
>> A(3:12,:)
ans =
10×4 cell array
{'60E' } {'8.571307N'} {'Jun-Sep 1979'} {[9.5850e-06]}
{'61.875E'} {'8.571307N'} {'Jun-Sep 1979'} {[3.1450e-05]}
{'63.75E' } {'8.571307N'} {'Jun-Sep 1979'} {[7.1122e-05]}
{'65.625E'} {'8.571307N'} {'Jun-Sep 1979'} {[7.2475e-05]}
{'67.5E' } {'8.571307N'} {'Jun-Sep 1979'} {[9.0740e-05]}
{'69.375E'} {'8.571307N'} {'Jun-Sep 1979'} {[9.7142e-05]}
{'71.25E' } {'8.571307N'} {'Jun-Sep 1979'} {[1.1910e-04]}
{'73.125E'} {'8.571307N'} {'Jun-Sep 1979'} {[1.6324e-04]}
{'75E' } {'8.571307N'} {'Jun-Sep 1979'} {[1.6622e-04]}
{'76.875E'} {'8.571307N'} {'Jun-Sep 1979'} {[1.4362e-04]}
But I want to convert it into a numeric array containing numbers only. For example, the first 2 rows of the modified array should look like:
A=[60 8.571307 1979 9.5850e-06; 61.875 8.571307 1979 3.1450e-05];
How to do that?
0 Kommentare
Akzeptierte Antwort
Matt J
am 3 Apr. 2021
Bearbeitet: Matt J
am 3 Apr. 2021
I don't think there is any solution that will work without any assumptions about the alphabetic content of the cells. Here, I assume that undesired text is either entirely to the left or right of the desired number in each cell:
A={'1.3E','Jun-Sep 2.6'}
for i=1:numel(A)
tmp=A{i};
if ~ischar(tmp), continue; end
m=isletter(tmp);
j=find(m,1); k=find(m,1,'last');
tmp(j:k)='';
A{i}=str2double(tmp);
end
A=cell2mat(A)
0 Kommentare
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Cell Arrays finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!