Unique Words in Multiple Files and Their Frequencies

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Mazhar Iqbal Rana
评论： Walter Roberson 2017-8-12
I Have calculated unique words and their frequencies in a single file below..
fid = fopen(filename);
words = textscan(fid, '%s');
status = fclose(fid);
unique_words = unique(words{1,1});
frequencies = zeros(numel(unique_words), 1);
for i = 1:numel(unique_words)
if max(unique_words{i} ~= ' ')
for j = 1:numel(words{1,1})
if strcmp(words{1,1}(j), unique_words{i})
frequencies(i) = frequencies(i) + 1;
end
end
end
end
Can anyone please tell me that how can I do this for multiple files? I mean if I am having four files? And moreover, after I have list of unique words in single file, how can I check through Matlab code that which words appears how many times in each file?
Thanks

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回答（1 个）

Zubier Abdullah
Zubier Abdullah 2017-8-12
编辑：Walter Roberson 2017-8-12
So you would use something like this
files = dir('*.TXT')
N = numel(files)
count = 0;
for i = 1:length(files)
fid1 = files(i).name
disp(fid1)
fidI = fopen(files(i).name,'r');
end
this will let you open each of the files in the folder (the .Txt means only open text files) and it sends that name to the Fid1)
add this to your code and it should work
  1 个评论
Walter Roberson
Walter Roberson 2017-8-12
files = dir('*.TXT')
N = numel(files)
count = 0;
words = cell(N, 1);
for i = 1:length(files)
fidname = files(i).name
disp(fidname)
fid = fopen(fidname, 'r');
words{N} = textscan(fid, '%s');
fclose(fid);
end
Or, more simply,
files = dir('*.TXT')
filenames = {files.name};
words = arrayfun( @(name) regexp( fileread(name), '\w+', 'split'), filenames, 'uniform', 0);

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