How do I plot a cell array where every cell contains an (x,2) matrix?

I am collecting large amounts of data that are output as .dat files. I filter through my entire directory to choose all the .dat files and then reassign them into a cell array as I go. The data imports as a structure when imported using importdata().

My code:

dr = dir('my directory');
c = 1;
for i = 1 : length(dr)                                  % Sort through directory

      fln = dr(lc).name;                                  % get filename
      [pathstr, name, ext] = fileparts(fln);              % get filename parts

      if strcmpi(ext,'.dat')                              % If file is .mat
          x = importdata(fln);                            % Load file - currently a struct
          RawData{c,1} = name;                            % Move file name into Col 1, Row 'c'
          RawData{c,2} = x.data;                          % Move data (n by 2) into Col 2, Row 'c'
          c = c + 1;                                      % Increase counter 
      end
end

I have a cell array:

RawData =

    'a14'    [1603x2 double]
    'a15'    [1574x2 double]
    'a16'    [1632x2 double]
    'a21'    [1602x2 double]
    'a22'    [1635x2 double]
    'a23'    [1603x2 double]
    'a24'    [1640x2 double]
    'a31'    [1631x2 double]
    'a32'    [1605x2 double]
    'a33'    [1607x2 double]
    'a34'    [1605x2 double]
    'a35'    [1569x2 double]

How do I plot each of these (column 1 vs. column 2) all on the same plot without a loop? I want them to be different colors so that I can label them individually in the legend. I am also able to separate the data so that all 'x' data is in column 3 and all 'y' data is in column four so I would have an (n x 3) cell array.

Thanks.

Answer 1

[Azzi Abdelmalek]

The better way to do it is to use the for loop

[Justin]

Thanks for the answer Azzi. Within a 'for' loop am I able to change the color, marker, etc. each iteration? I also want to be able to add the name in column 1 of RawData as the legend title for each line. I don't mind using a for loop, but I am still not certain how to do this.

[Azzi Abdelmalek]

You can add the legend at the end of your plot. Look at this example

RawData ={'a14'    [(1:20)' sin(1:20)']
  'a15'    [(1:30)' 10*cos(1:30)']
  'a16'    [(1:40)' 20*sin(1:40)']}
couleur='krgbm'
for k=1:size(RawData,1)
  xy=RawData{k,2}
  plot(xy(:,1),xy(:,2),couleur(k))
  hold on
end
legend(RawData(:,1))
hold off

[Justin]

Thank you Azzi. Both your and Amit's answers helped me.

Answer 2

[Khalid]

grades_imp = importdata('filename.dat');

A=grades_imp.data; B=grades_imp.textdata; C=cell2mat(B(2:end, 1)); time_hours = (mod(datenum(C), 1)) * 24; % transform hh:mm:ss to hours rel1 = A(:,1); rel2 = A(:,2); rel3 = A(:,3); rel4 = A(:,4); rel5 = A(:,5); rel6 = A(:,6); plot (time_hours,rel1,'b' ,time_hours,rel2,'r', time_hours,rel3,'g',time_hours,rel4,'y' ,time_hours,rel5,'w', time_hours,rel6,'m')