Unique Words in Multiple Files and Their Frequencies

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

Answer 1

[Zubier Abdullah]

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

[Walter Roberson]

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);