fixing renderText script

distribution

@@ -0,0 +1,72 @@
+#!/usr/bin/awk -f
+
+# supply max_lines and max as variables like this:
+# cat /usr/share/dict/words | awk '{print length($1)}' | distribution -v max_lines=5 -v max=10
+
+BEGIN {
+        LIMIT=max
+        DEFAULT_MAX_LINES=55
+        if (lines) {
+                NUMBER_OF_LINES=lines
+        }
+        else {
+                NUMBER_OF_LINES=55
+        }
+        if (max_width) {
+                LINE_WIDTH=max_width
+        }
+        else {
+                LINE_WIDTH=100
+        }
+}
+{
+        if (match($1,/^[0-9\.]+$/)){
+                if(!LIMIT>0 || $1<LIMIT) {
+                        values[i++]=$1
+                }
+        }
+}
+END {
+        number_of_records = 0
+        for(v_index in values) {
+                if(max<values[v_index]) max = values[v_index]
+                number_of_records++
+        }
+        if (max_lines) {
+                if (max <= max_lines) {
+                        number_of_lines = max
+                }
+                else {
+                        number_of_lines = max_lines
+                }
+        }
+        else {
+                if (max <= DEFAULT_MAX_LINES) {
+                        number_of_lines = max
+                }
+                else {
+                        number_of_lines = DEFAULT_MAX_LINES
+                }
+        }
+        line_height=max/number_of_lines
+        for(v_index in values) {
+                counted[int(values[v_index]/line_height)] += 1
+        }
+        line=0
+        max_width=0
+        while(line <= number_of_lines) {
+                if(max_width<counted[line]) max_width = counted[line]
+                line++
+        }
+        line=0
+        records_so_far = 0
+        printf("%8s %8s %8s %s\n","Value","Height","%ile","Histogram")
+        while(line <= number_of_lines) {
+                records_so_far += counted[line]
+                bar_width=counted[line]*LINE_WIDTH/max_width
+                bar=""
+                while (bar_width-->0) bar=bar "#"
+                printf("%8d %8d %8.4f %s\n",line * line_height,counted[line],100*records_so_far/number_of_records, bar)
+                line ++
+        }
+}