Re: Plotting from txt file

[Santiago Higuera]

Hi:

Try this:

fid = fopen('output1480196986778.txt','r');
if fid==-1
      fprintf("Error \n");
      return;
end
XX = [];
YY = [];
while ~feof(fid)
    x = fscanf(fid, '%f', 1);
    XX = [XX, x];
    fscanf(fid,'%s',2);
    y = fscanf(fid, '%f', 1);
    YY = [YY, y];
    fgets(fid);
end
fclose(fid);

plot(XX,YY);

Regards,

Santiago Higuera



El 27/11/16 a las 00:51, skematic escribió:
> Dear all,
>
> I have a text file that looks like this
>
> 2723 PID 20.00 21.56 0.00 0.00 0.00 0.00 Manual Direct
> 3723 PID 20.00 21.56 0.00 0.00 0.00 0.00 Manual Direct
> 4724 PID 20.00 21.56 0.00 0.00 0.00 0.00 Manual Direct
> 5725 PID 20.00 21.56 0.00 0.00 0.00 0.00 Manual Direct
> 6725 PID 20.00 21.56 0.00 0.00 0.00 0.00 Manual Direct
> 7727 PID 20.00 21.56 0.00 0.00 0.00 0.00 Manual Direct
>
> I want to make a 2D plot with column 1 as x and column 4 as y.
>
> I've looked up online, here is what I end up with.
>
> filename='output1480196986778.txt';
> fid = fopen(filename, 'r');
> data = textscan(fid, '%s %s %s %s %s %s %s %s %s %s');
> plot(data{1}, data{4});
> fclose(fid);
>
> data does get populated with the data from the txtfile but the plot function
> gives this
>
> error: plot: no data to plot
> error: parse error
>
> How can I make this plot?
>
>
>
>
> --
> View this message in context: 
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> Sent from the Octave - General mailing list archive at Nabble.com.
>
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