Groups > comp.graphics.apps.gnuplot > #3673

Re: Using arrays

From	Ethan A Merritt <sfeam@users.sourceforge.net>
Newsgroups	comp.graphics.apps.gnuplot
Subject	Re: Using arrays
Date	2017-06-05 09:41 -0700
Organization	gnuplot development
Message-ID	<oh41ds$ttm$1@dont-email.me> (permalink)
References	<epgtapF1peqU1@mid.individual.net> <oh08o7$90q$1@dont-email.me>

Show all headers | View raw

Ethan A Merritt wrote:

> If you really want to recover the original data after packing into a set
> of complex values the plot command would have to be something like
> 
>    plot plt using (real($2)):(imag($2))
> 
> That doesn't work either (might be an actual bug lurking there) but at
> least it tries to unpack the original 2 real values from a single
> complex value. A variant that does work is
> 
>    plot sample [i=1:7:1] '+' using (real(plt[i])):(imag(plt[i]))
> 
> That variant is a tour-de-force of new syntax items but I don't see
> anything gained over using the original data format.

In case anyone finds this thread while looking for guidance on 
handling complex values...

I later realized that a simpler way to do this is

    plot plt using (real(plt[$1])) : (imag(plt[$1]))

Back to comp.graphics.apps.gnuplot | Previous | Next — Previous in thread | Find similar

Thread

Using arrays John Edwards <johned0@gmail.com> - 2017-06-03 23:59 +0100
  Re: Using arrays Ethan A Merritt <EAMerritt@gmail.com> - 2017-06-03 23:22 -0700
    Re: Using arrays John Edwards <johned0@gmail.com> - 2017-06-04 09:30 +0100
    Re: Using arrays Ethan A Merritt <sfeam@users.sourceforge.net> - 2017-06-05 09:41 -0700

csiph-web