Re: [Gnuplot-info] 3D - histograms

[Hans-Bernhard B. <br...@ph...>]

Noel-Monash wrote:

> There are two major series, each with three sub-series. If I plot each 
> major series individually as a histogram it would look something like this:
> 
> 8 | #
> 7 | #
> 6 | #
> 5 | #
> 4 | #                 &
> 3 | # * &         #   &
> 2 | # * &    *    #   &
> 1 |_#_*_&__#_*_&__#_*_&_
>            1            2            3                          Lengths
> The y-axis is the 'number of occurrences' at that length.

This part could be done easily using plot 'with boxes, a fixed boxwidth, 
and x positions a bit shifted as needed:

	set boxwidth 0.25
	plot 'file' u 1:($3-0.25) w boxes, \
	     '' u 1:($4) w boxes, \
	     '' u 1:($5+0.25) w boxes

Unfortunately, boxes is not a supported plot style in 3D displays.  You 
could still apply the above technique and display the two major series
split a bit, but without the actual 3D effect.