Loading and naming specific columns
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Hello,
I used this code to import and name data in Matlab:
for i=1951:2000
fileName=['arunoff_' num2str(i)];
dataStruct.(fileName)=importdata([fileName '.txt']);
end
This creates data structure dataStruct.arunoff_(i).data for each year (1951-2000). Next I would like to create and name another set of variables using the third column in 'data' (i.e. dataStruct.arunoff_1951.data(:,3), dataStruct.arunoff_1952.data(:,3) etc.). However, I don't know how to write a loop that does that and was wondering if someone could help me with this? My main problem is I don't know how to tell the loop to use data in each a_runoff(i) structure.
Hope this makes sense, thanks very much for the help!
0 Kommentare
Akzeptierte Antwort
Walter Roberson
am 30 Aug. 2011
fn = fieldnames(dataStruct);
for K = 1:length(fn)
newStruct.([fn 'd3']) = dataStruct.(fn).data(:,3);
end
2 Kommentare
Andrei Bobrov
am 30 Aug. 2011
Hi Walter!
Little typo.
for K = 1:length(fn)
newStruct.([fn{K} 'd3']) = dataStruct.(fn{K}).data(:,3);
end
Walter Roberson
am 30 Aug. 2011
Good point. I mentally started with K = fn (i.e., iterate over the cells) and didn't clean up properly afterwards.
Weitere Antworten (1)
Siehe auch
Kategorien
Mehr zu Loops and Conditional Statements 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!