n-best tree output

1 files changed, 1 insertions, 0 deletions

diff --git a/moses/Parameter.cpp b/moses/Parameter.cpp
index 726ac903f..380d0faa0 100644
--- a/moses/Parameter.cpp
+++ b/moses/Parameter.cpp
@@ -57,6 +57,7 @@ Parameter::Parameter()
   AddParam("max-trans-opt-per-coverage", "maximum number of translation options per input span (after applying mapping steps)");
   AddParam("max-phrase-length", "maximum phrase length (default 20)");
   AddParam("n-best-list", "file and size of n-best-list to be generated; specify - as the file in order to write to STDOUT");
+  AddParam("n-best-trees", "Write n-best target-side trees (additional to normal n-best-list) to file {n-best-list-file}.trees");
   AddParam("lattice-samples", "generate samples from lattice, in same format as nbest list. Uses the file and size arguments, as in n-best-list");
   AddParam("n-best-factor", "factor to compute the maximum number of contenders (=factor*nbest-size). value 0 means infinity, i.e. no threshold. default is 0");
   AddParam("print-all-derivations", "to print all derivations in search graph");