Net::Ping does not generate any output by itself, but you should be able to calculate any values you need yourself. From the POD:
in reply to Net::Ping output
Do you need help in making a basic pinging loop, or calculating minimum, maximum, average, standard deviation? Or finding the host's reverse DNS?
# High precision syntax (requires Time::HiRes)
$p = Net::Ping->new();
($ret, $duration, $ip) = $p->ping($host, 5.5);
printf("$host [ip: $ip] is alive (packet return time: %.2f ms)\n",
+ 1000 * $duration)