How to automatically open the files in this m-code

hello. I couldn't solve the problem from last answers.. so I bring the m-code I wrote as below:

clear

clc

fileID = fopen('number_of_filename.txt','w');

fprintf(fileID,'%6s\n','number');

for ii=1:100

[file,path]=uigetfile('*.txt');

file_name=file

filename=fullfile(path,file);

fid = load(filename);

idx = find(file_name == ' ', 1, 'first');

part1 = file_name(1:idx-1);

fprintf(fileID,'%6s\n',part1);

end

fclose(fileID);

The name of the txt files are 0.5 f.txt, 1.0 f.txt, 1.1 f.txt, 3.0 f.txt, 5.6 f.txt, 10.0 f.txt ... and so on. The numbers are random.

Above code will give me the 'number part of the file name' only, which are 0.5, 1.0, 1.1, 3.0, 5.6, 10.0 ... and so on.

Here, I am to select txt files one by one, over and over. The problem is, I have over 1 thousand txt files....

How can I modify the above code to let the m-file run all 1 thousand txt files by itself?

[Triveni]

You should rename file(s) in serial order. And then you should use for loop.

ex. txt(1) txt(2).....

[yc j]

i can't... the file name means something and i need them...

[Stephen23]

Question is continued here:

http://www.mathworks.com/matlabcentral/answers/265233-how-do-i-make-up-a-word-by-attaching-several-words-in-matlab

Answer 1

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

Use dir() to get the names of the files.

[Stephen23]

And then use my FEX submission natsortfiles to get the files into numeric order:

http://www.mathworks.com/matlabcentral/fileexchange/47434-natural-order-filename-sort

S = dir(...);
S = natsortfiles(S,'\d+\.?\d*');
for k = 1:numel(S)
    S(k).name
    ...
end

[Walter Roberson]

It turns out in another Question that the names have a variable number of decimal places that sometimes include trailing 0 and sometimes do not.