Re: [Gnuplot-info] Plotting strings on X axis on specified positions

[Thomas S. <t.s...@fz...>]

plot "FILE" using 1:(NaN):xtic(2) every 2, "" using 1:3 with lines


Ricardo_NL wrote:
> 
> Hello all, I have a file with 3 columns (example below). I want to plot
> the 1st column as X and the 3rd column as Y. However, I would like to
> show, in the positions specified by me for x-tics, the relative values in
> the 2nd column, instead of the absolute values from 1st column. Example:
> 
> FILE:
> 0 21:00:00 45
> 1 21:05:00 66
> 2 21:10:00 94
> 3 21:15:00 36
> 4 21:20:00 53
> 5 21:25:00 10
> 6 21:30:00 72
> 7 21:35:00 63
> 8 21:40:00 72
> 9 21:45:00 76
> 10 21:50:00 17
> 
> I want x-tics only every two entries, but instead of the 1st column value,
> I want to plot the 2nd column text.
> 
> ...
> set xtics 0,2,10
> plot "FILE" using 1:3:xtics(2) with lines
> 
> However, the lines above create a graphic with all values of 2nd column
> and not every two entries.
> 
> Ps.: my input file has much more lines, with time starting in one day and
> end in the next day. Therefore, I cannot plot a datetime-like x-axis,
> because the hours repeat.
> 
> Thanks,
> Ricardo.
> 
> 

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