"-persist"

[Massimo C. <me...@po...>]

Hi,
in gnuplot ver. 4 I used the option "-persist". This option was very 
useful to use gnuplot within a perl script.

In the version 4.1, it seems that this option is not still available.

Does it true or is there another command for the "persist" mode?

Thanks,
    Massimo.

P.S.: My perl script works in this way:
#!/usr/bin/perl

system("clear");

open(PLOTP, "|/usr/bin/gnuplot -persist") ||
                die "Couldn't run gnuplot: $!\n";

print PLOTP "set term postscript eps enhanced \"Times-Roman\" 14\n";
print PLOTP "set xlabel \"RR\"\n";
....