diff options
Diffstat (limited to 'src/runtime/haskell')
| -rw-r--r-- | src/runtime/haskell/PGF/Probabilistic.hs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/runtime/haskell/PGF/Probabilistic.hs b/src/runtime/haskell/PGF/Probabilistic.hs index 1a75b60a6..ee44e73e1 100644 --- a/src/runtime/haskell/PGF/Probabilistic.hs +++ b/src/runtime/haskell/PGF/Probabilistic.hs @@ -80,7 +80,7 @@ setProbabilities probs pgf = pgf { }} where mapUnionWith f map1 map2 = - Map.mapWithKey (\k v -> f v (fromJust (Map.lookup k map2))) map1 + Map.mapWithKey (\k v -> maybe v (f v) (Map.lookup k map2)) map1 -- | compute the probability of a given tree probTree :: PGF -> Expr -> Double |