How to run a code for several files also how to stop the code for a specific number of files and give output?
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I have following code:
A=load('CurRunA.dat');
X=A(:,1); Y=A(:,3);
figure( plot(X,Y)
I want to run this code for several files CurRunA, CurRunB, CurRunC..... How can I run this code automatically for all the files like these and plot the X,Y curve for all those data in a single plot with different colors?
I can rename those files for the sake of programing. Also, if I have 20 files and if I want to do this only up to 10 files, how can I stop the program till 10 and provide the output?
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kjetil87
2013-12-11
PATH = 'C:\myFilesAreHere\'; %remember the last \
files=dir([PATH,'*.dat']) ; %get info about all files in PATH that ends with .dat
fileNames={files.name}; %extract only filenames, put them in a cell.
%im not sure if the filenames are allredy sorted or not but to be sure:
fileNames=sort(fileNames);
nFiles=numel(fileNames); %count number of files
colorMap={'red','blue','green',... etc} % if your run out of colors use e.g '-.red'
for i=1:min(nFiles,10) %run for either 1:10 or 1:nFiles if nFiles<10.
A=load([PATH,'fileNames{i}']);
% your code
figure;plot(X,Y,colorMap{i} );
end
%%%%%%% END %%%%%
This ok? =)
7 个评论
kjetil87
2013-12-11
Oh sorry, you said same plot.
change figure;plot(...) with:
figure %before loop.
hold on
plot(X,Y,colorMap{i}); %inside loop
aneps
2013-12-11
My bad, there should not be quotes '' on fileNames{i} (since fileNames i is a char array, with quotes its seen as a string )
correct:
A=load([PATH,fileNames{i}]);
aneps
2013-12-11
It means you are trying to index with {i} on something that is not a cell. (Also in your first post you typed filenames with a small n, i used capital N ).
Make sure that
fileNames={files.name}; (<-- note brackets not parantheses)
and that
colorMap={...} % colors.
i have tested this now :P , so somewhere you forgot to use {}.
Example test script:
obj1=1:10;
obj2=4:15;
obj3=5:16;
save('file1.dat','obj1','-ASCII');
save('file2.dat','obj2','-ASCII');
save('file3.dat','obj3','-ASCII');
clear all;
PATH = [cd,'\'];
files=dir([PATH,'*.dat']) ;
fileNames={files.name};
fileNames=sort(fileNames);
nFiles=numel(fileNames);
colorMap={'r','b','g'};
figure;hold on;
for i=1:min(nFiles,10)
A=load([PATH,fileNames{i}]);
X=1:numel(A);
Y=A;
plot(X,Y,colorMap{i});
end
aneps
2013-12-11
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