replace dlmread file name with a variable in a loop

3 visualizaciones (últimos 30 días)
Avik Mahata
Avik Mahata el 12 de Jun. de 2022
Respondida: Avik Mahata el 12 de Jun. de 2022
I have around 20 files needed to be read and plotted. So the file names are such as file.288.10 , file.288.100 etc. I have 20 files. I am tryng in the following code, but its not reading T and P.
for T = [288 299 308 323 337]
for P = [10 100 340 544]
M = dlmread('file.T.P', ' ', 1, 0);
figure
plot (M(:,1), M(:,2))
hold on
plot (M(:,1), M(:,3))
hold on
end
end

Respuesta aceptada

Image Analyst
Image Analyst el 12 de Jun. de 2022
Maybe this:
folder = pwd; % Or wherever you want
for T = [288 299 308 323 337]
for P = [10 100 340 544]
baseFileName = sprintf('file.%d.%d.csv', T, P); % Change extension if it's not csv.
fullFileName = fullfile(folder, baseFileName);
if isfile(fullFileName)
M = readmatrix(fullFileName);
figure
plot (M(:,1), M(:,2), 'b-', 'LineWidth', 2)
grid on;
hold on
plot (M(:,1), M(:,3), 'r-', 'LineWidth', 2)
legend('Column 2', 'Column 3');
title(baseFileName, 'FontSize', 18)
else
fprintf('Warning: file not found : "%s".\n', fullFileName)
end
end
end
If that doesn't work, attach two of your files in a zip file after reading this:

Más respuestas (2)

dpb
dpb el 12 de Jun. de 2022
You've got to turn the numerics into string filename to build dynamically --
for T = [288 299 308 323 337]
for P = [10 100 340 544]
fname=sprintf('file%d.%d',T,P);
M = dlmread(fname,' ', 1, 0);
figure
plot (M(:,1), M(:,2:3))
end
end
Unless you've an older release of MATLAB, I'd suggest using readmatrix instead of dlmread

Avik Mahata
Avik Mahata el 12 de Jun. de 2022
Thanks for the reply. Both works.

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