Re: Adding normalise to gnuplot

[Jon G. <jo...@th...>]

> >> However, if you want to do this sort of thing it does not require a
> >> patch to gnuplot, just use a function.
> >>
> >> max(x) =(if (x>biggest)?biggest=max:(x))
> >> biggest=-1e-134; plot datafile 1:max($2)
> >> plot datafile 1:($2/biggest)
> >
> > Ah, of course, why didn't I think of that?!
> 
> Thats also somthing which can be done with the stats command:
> 
> stats datafile using 2
> plot datafile using 1:($2/STATS_max)

Actually, there is one use-case not covered by these approaches, and
that is when doing a "live" plot where replot is called repeatedly and
the underlying datafile changes. In these situations (unless I'm
mistaken), STATS_MAX/biggest won't be recomputed, and so the scaling
will be incorrect. A smoothing filter would continue to work in this
case. Any thoughts on how rescaling on replot might be achieved without
a patch?