Plot styles 'L' and '^'?

[Christoph Dalitz]

Am Mon, 20 Oct 2008 15:42:28 +0200
schrieb "Michael Goffioul" <michael.goffioul at gmail.com>:
>
> Use "stem" or "stairs" to get the same results.
> See "help stem" and "help stairs".
> 
stem() does not work in connection with legend().

Is there any reason why the linestyles '^' (gnuplots "with impulses")
and 'L' (gnuplot "with steps") have been dropped in plot?

Thanks,

Christoph