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comparison bin/hist @ 2:345f8b12fd2f

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mostly quite old
author Henry S. Thompson <ht@inf.ed.ac.uk>
date Sat, 28 Feb 2026 15:52:47 +0000
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1:fef95c7a391f 2:345f8b12fd2f
1 #!/bin/sh
2 # Usage: hist file bins [-max n] [-min n] [-ll n] [-t title] [-ntile n]
3 file=$1
4 shift
5 nb=$1
6 shift
7 date=`date`
8 while
9 case "x$1" in
10 x-max) shift; max=$1 ;;
11 x-ll) shift; ll=$1 ;;
12 x-min) shift; min=$1 ;;
13 x-t) shift; title=$1 ;;
14 x-ntile) shift; ntile=$1 ;;
15 x) break ;;
16 *) echo hunh 1>&2; exit 1 ;;
17 esac
18 do
19 shift
20 done
21 if [ \( -z "$max" -o -z "$min" \) ]
22 then
23 rfile=/tmp/hist$$
24 sort -n $file > $rfile
25 fi
26 perl -e "
27 (\$max,\$min,\$nb,\$ll,\$title,\$ntile)=(${max:-`tail -1 /tmp/hist$$`},
28 ${min:-`head -1 /tmp/hist$$`}
29 ,$nb,${ll:-80},\"${title:-$file}\",${ntile:-0});"'
30 $#bins=$nb;
31 $range=$max-$min;
32 while (<>) {
33 if ($_<$min) {
34 $minn+=1;
35 }
36 elsif ($_>$max) {
37 $maxn+=1;
38 }
39 else {
40 $n+=1;
41 $i=(($_-$min)/$range)*$nb;
42 if ($i==$nb) {$bins[$i-1]+=1} else {$bins[int($i)]+=1};
43 };
44 };
45 $start=$min+$range/(2*$nb);
46 $step=$range/$nb;
47 foreach $i (0..$nb-1) {
48 $mb=$bins[$i] if ($bins[$i]>$mb);
49 };
50 $bscale=$mb/($ll-16);
51 $bscale=1 if ($bscale<1);
52 print "$title ",`date`,"\n";
53 print " n min max width maxcnt bscale";
54 if ($ntile) {
55 print " ntiles tilew";
56 $tile=$tstep=($n/$ntile);
57 $ntile--;
58 }
59 print "\n";
60 printf("%7d%7.3f %7.3f%7.3f%6d %7.3f",$n,$min,$max,$step,$mb,$bscale);
61 printf("%5d %7.2f",$ntile+1,$tstep) if ($ntile);
62 print "\n\n";
63 if ($minn) {printf("<%7.3f%7d\n",$min,$minn)};
64 foreach $i (0..$nb-1) {
65 $n=$bins[$i];
66 if ($ntile) {
67 $cum+=$n;
68 if ($cum>=$tile) {
69 print "-"; $tile+=$tstep; $ntile--;
70 }
71 else {
72 print " ";
73 };
74 }
75 else {
76 print " ";
77 };
78 printf("%7.3f%7d ",$start+($i*$step),$bins[$i]);
79 $nx=$bins[$i]/$bscale;
80 $nx=1 if (($nx<1) && ($bins[$i]>0));
81 print "*" x $nx; print "\n";
82 };
83 if ($maxn) {printf(">%7.3f%7d\n",$max,$maxn)};' ${rfile:-$file}
84 if [ "$rfile" ]
85 then
86 rm $rfile
87 fi
88