added --prune to man page and usage()

Author: kosloot

docs/timbl.1

@@ -1,4 +1,4 @@
-.TH timbl 1 "2017 November 9"
+.TH timbl 1 "2026 June 23"
 
 .SH NAME
 timbl \- Tilburg Memory Based Learner
@@ -311,6 +311,13 @@ cross_validate
 perform cross\(hyvalidation test (IB1 only)
 .RE
 
+.B \-\-prune
+.RS
+Convert an IB1 tree into an IGTree
+
+usage: 'timbl \-i IB1tree \-I IGtree'
+.RE
+
 .B \-t
 @file
 .RS
@@ -434,9 +441,11 @@ dump the InstanceBase as XML in 'file'
 possibly
 
 .SH AUTHORS
-Ko van der Sloot Timbl@uvt.nl
+Ko van der Sloot
+
+Antal van den Bosch
 
-Antal van den Bosch Timbl@uvt.nl
+e\-mail: lamasoftware@science.ru.nl
 
 .SH SEE ALSO
 .BR timblserver (1)

src/Timbl.cxx

@@ -131,17 +131,20 @@ inline void usage_full(void){
   cerr << "-L n      : MVDM threshold at level n" << endl;
   cerr << "-R n      : solve ties at random with seed n" << endl;
   cerr << "-t  f     : test using file 'f'" << endl;
-  cerr << "-t leave_one_out:"
+  cerr << "-t leave_one_out"
        << " test with Leave One Out,using IB1" << endl;
   cerr << " you may add -sloppy to speed up Leave One Out testing (see docs)"
        << endl;
-  cerr << "-t cross_validate:"
+  cerr << "-t cross_validate"
        << " Cross Validate Test,using IB1" << endl;
   cerr << "   @f     : test using files and options described in file 'f'"
        << endl;
   cerr << "            Supported options: d e F k m o p q R t u v w x % -"
        << endl;
   cerr << "            -t <file> is mandatory" << endl;
+  cerr << "--prune   : convert an IB1 tree into an IGtree." << endl
+       << "            using -i to read an IB1 file and -I to output an IGtree"
+       << endl;
   cerr << "Input options:" << endl;
   cerr << "-f f      : read from Datafile 'f'" << endl;
   cerr << "-f f      : OR: use filenames from 'f' for CV test" << endl;