How to import data from .txt file?

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Max-Henri Froger
Max-Henri Froger 2020-8-11
回答： Jeremy Hughes 2020-8-11
Hello everyone,
I am doing an application on App Designer and I need to extract data from a simple txt file architecture (as shown below). After extracted the data, I need to save them on a matlab file but I don't find the way to do that.
I code this but it's not working
[filename,pathname]=uigetfile({'*.fl.txt' 'Torque file (*.fl.txt)'},'Select a torque curve');
if filename ~= 0
extracted=textscan([filename,pathname],'%f %f')
CDC_N=extracted(:,1)
CDC_Torque=extracted(:,2)
save(CDC.mat,'CDC_N','CDC_Torque');
end
if anyone could help me, I'd be grateful.
thanks

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采纳的回答

KSSV
KSSV 2020-8-11
data = importdata(mytextfile) ;

更多回答（1 个）

Jeremy Hughes
Jeremy Hughes 2020-8-11
The textscan function expects a fileID, not a file name. you need to use fopen.
[filename,pathname]=uigetfile({'*.fl.txt' 'Torque file (*.fl.txt)'},'Select a torque curve');
if filename ~= 0
fid = fopen(fullfile(pathname,filename));
extracted=textscan(fid,'%f %f');
fclose(fid);
CDC_N=extracted(:,1)
CDC_Torque=extracted(:,2)
save(CDC.mat,'CDC_N','CDC_Torque');
end

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