Merge pull request #833 from null-a/categorical-helper

Have categorical helper sample from Categorical rather than Discrete distribution.
probmods · Apr 21, 2017 · 65d5421 · 65d5421
2 parents 02fa610 + 7025a1a
commit 65d5421
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diff --git a/src/dists.ad.js b/src/dists.ad.js
@@ -1504,7 +1504,6 @@ var Categorical = makeDistributionType({
     {name: 'ps', desc: 'probabilities (can be unnormalized)', type: types.nonNegativeVectorOrRealArray},
     {name: 'vs', desc: 'support', type: types.array(types.any)}],
   wikipedia: true,
-  nohelper: true,
   mixins: [finiteSupport],
   constructor: function() {
     'use ad';

diff --git a/src/header.wppl b/src/header.wppl
@@ -7,11 +7,6 @@ var flip = function(p) {
   return sample(Bernoulli(params));
 };
 
-var categorical = function(arg1, arg2) {
-  var params = util.isObject(arg1) ? arg1 : {ps: arg1, vs: arg2};
-  return params.vs[discrete(params.ps)];
-};
-
 var uniformDraw = function(arg) {
   var vs = util.isObject(arg) ? arg.vs : arg;
   if (vs.length == 0) {