Initial data commit

Task/Probabilistic-choice/J/probabilistic-choice-1.j

@@ -0,0 +1,17 @@
+main=: verb define
+  hdr=.  '       target   actual  '
+  lbls=. ; ,:&.> ;:'aleph beth gimel daleth he waw zayin heth'
+  prtn=. +/\ pt=. (, 1-+/)1r1%5+i.7
+  da=.   prtn I. ?y # 0
+  pa=.   y%~ +/ da =/ i.8
+  hdr, lbls,. 9j6 ": |: pt,:pa
+)
+
+Note 'named abbreviations'
+     hdr  (header)
+     lbls (labels)
+     pt   (target proportions)
+     prtn (partitions corresponding to target proportions)
+     da   (distribution of actual values among partitions)
+     pa   (actual proportions)
+)

Task/Probabilistic-choice/J/probabilistic-choice-2.j

@@ -0,0 +1,10 @@
+main 1e6
+       target   actual
+aleph  0.200000 0.200344
+beth   0.166667 0.166733
+gimel  0.142857 0.142611
+daleth 0.125000 0.124458
+he     0.111111 0.111455
+waw    0.100000 0.099751
+zayin  0.090909 0.091121
+heth   0.063456 0.063527

Task/Probabilistic-choice/J/probabilistic-choice-3.j

@@ -0,0 +1,5 @@
+   pt=. (, 1-+/)1r1%5+i.7
+   pt
+1r5 1r6 1r7 1r8 1r9 1r10 1r11 1759r27720
+   +/pt
+1