Reading data after Importing text files into variables with the same name

I have this code from a on line source

files  = dir( '*.txt' ) ;
nFiles = length( files ) ;
names  = cell( nFiles, 1 ) ;
data   = cell( nFiles, 1 ) ;
for dId = 1 : nFiles
  names{dId} = files(dId).name ;
  fId  = fopen( files(dId).name, 'r' ) ;
  cols = textscan( fId, '%f %f', 'headerlines', 1 ) ;
  data{dId} = [cols{:}] ;
  fclose( fId ) ;    
end

can anybody help me how can I then read my files to reach the data set in each individual file ? Thanks

Answer 1

[dpb]

You've read the files already, you've got nFiles cells of a 2D array that's Nx2 for each file where N may be a different length.

To address the data of a given file, "use the curlies, Luke!" --

xy=data{idx};

will return the full array for the idx th entry, idx=1:nFiles

To refer to a subset within the array, follow with a set of indices in "normal" parentheses--

x=data{idx}(:,1);

would be the first column of the above array.

See

doc cell % and links to "addressing cell contents" for the details

and look at the "Getting Started" section on data types for cell arrays and tutorial information.

[amberly hadden]

Thanks dpb but its not givng me my data which is 123455*23 its just giving me single number x = data{1}(:,1)

x =

     6

I will try it again

[dpb]

data{1}(:,1) will return all rows of the first column of the first cell in the array data. That would be a single value iff size(,1) of that cell array is unity.

Not being able to see your terminal from here [ :) ] it's a little hard to know what, precisely, is happening, but let's start with

which data
which data(1)
which data{1}

to see what you actually have...

[amberly hadden]

its little trivial for me to work with it so I decided to just read all files one by one and process them. Thanks for your suggestions and help