Whitespace Delimited Textfile, NaN results?
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    Sage Hayes
 el 28 de Oct. de 2021
  
    
    
    
    
    Respondida: Walter Roberson
      
      
 el 28 de Oct. de 2021
            Hi, so I'm having trouble reading this delimited textfile. It's whitespace delimited columns with rows being indicated by carriage returns.
So far I've been trying to read it through this method:
clear all;
close all;
fid = fopen('test.txt', 'rt');
%make headers
tline = fgetl(fid);
headers = strsplit(tline, ',');     %a cell array of strings
%make data
datacell = textscan(fid,'%f%f%f%f', 'Delimiter',' ', 'CollectOutput', 1);
fclose(fid);
datavalues = datacell{1};    %as a numeric array
However this has resulted in a bunch of NaN's inserted into the matrix (Capture.PNG).
Any help would be greatly appreciated.
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  per isakson
      
      
 el 28 de Oct. de 2021
        
      Editada: per isakson
      
      
 el 28 de Oct. de 2021
  
      The problem is caused by  'Delimiter',' '  in 
datacell = textscan(fid,'%f%f%f%f', 'Delimiter',' ', 'CollectOutput', 1);
in combination with two spaces between the third and the fourth column in the text file. 
Try 
datacell = textscan( fid,'%f%f%f%f', 'CollectOutput', 1);
and let Matlab take care of the problem or 
datacell = textscan(fid,'%f%f%f%f', 'Delimiter',' ', 'CollectOutput',1, 'MultipleDelimsAsOne',true);
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  Walter Roberson
      
      
 el 28 de Oct. de 2021
        filename = 'https://www.mathworks.com/matlabcentral/answers/uploaded_files/781593/test.txt';
datavalues = readmatrix(filename)
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