2 # Simple averages and medians
3 # (c) 2003 Martin Mares <mj@ucw.cz>, GPL'ed
8 `sort >avg.tmp`; $? && die;
9 open I, "avg.tmp" or die;
19 $min = $_ if !defined $min;
21 $n || die "No data found";
24 for (my $i=0; $i<$n/2; $i++) {
37 my $stdd = sqrt($var);
38 printf "Number of records: %d\n", $n;
39 printf "Average: %.3f\n", $avg;
40 printf "Variance: %.3f\n", $var;
41 printf "Std. deviation: %.3f\n", $stdd;
42 printf "Median: %.3f\n", $median;
43 printf "Minimum: %.3f\n", $min;
44 printf "Maximum: %.3f\n", $max;