I can't replicate your results above.
Using your verb:

plottest (i.10),:3+i.10  NB. two dashed lines
plottest i.10            NB. one dashed line
plottest ,: i. 10        NB. one dashed line



On Thu, Apr 7, 2016 at 12:36 PM, Ryan Eckbo <[email protected]> wrote:

> I'm trying to plot one dashed line, but it seems to only work when
> more than one line is plotted.
>
> plottest=: 3 : 0
> pd'reset'
> pd'penstyle 2 '
> pd'pensize 2'
> pd y
> pd'show'
> )
>
> plottest (i.10),:3+i.10  NB. two dashed lines
> plottest i.10  NB. empty plot
>
> Why is this?
>
> Ryan
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