Re: [OctDev] Java/OpenGL-based graphics package for octave

[Daniel J Sebald]

Michael Goffioul wrote:

> > Oh, that's interesting.  So the stem series is just a single line in 
> > some sense
> > with a bunch of blank spots along the way.
>
>
> It's actually 2 lines: one for the stems with blanks/NaN inserted, one 
> for the
> markers with the original x/y data. But for the rest, you're right.

Here's an example in gnuplot of that concept:

set xrange [0:4]
set yrange [-1:6]
set datafile missing "NaN"
plot '-' with points pt 6 lc rgb "green", '-' using ($1):($2) with lines lc rgb 
"green"
1 3
2 5
3 4
e
1 0
1 3
NaN NaN
2 0
2 5
NaN NaN
3 0
3 4
e


Of course, there is no reason that the data can't be compressed back into 
something which gnuplot's "with impulses".  So there are two alternatives beyond 
the concept of having a new line for each stem.

Dan