Hi Nat I tried to limit the resolution by either --diff_limit 4 or --high_resolution 4.0. This does not work - probably is not supposed to work in this way? Thanks, ULrich lrich-Baumanns-iMac:xds_new ubaumann$ cctbx.patterson_map au1_run1_Rfree.mtz --high_resolution 4. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !! WARNING - EXPERIMENTAL PROGRAM !! !! !! !! This program is still in development - some functionality may be !! !! missing and/or untested. Use at your own risk! For bug reports, etc. !! !! email [email protected]. !! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Traceback (most recent call last): File "/usr/local/phenix-dev-1405/build/mac-intel-osx-x86_64/../../cctbx_project/iotbx/command_line/patterson_map.py", line 176, in <module> run(sys.argv[1:]) File "/usr/local/phenix-dev-1405/build/mac-intel-osx-x86_64/../../cctbx_project/iotbx/command_line/patterson_map.py", line 136, in run params = cmdline.work.extract() File "/usr/local/phenix-dev-1405/cctbx_project/libtbx/phil/__init__.py", line 1690, in extract value = object.extract(parent=result) File "/usr/local/phenix-dev-1405/cctbx_project/libtbx/phil/__init__.py", line 1086, in extract return self._type_from_words()(self.words, master=self) File "/usr/local/phenix-dev-1405/cctbx_project/libtbx/phil/__init__.py", line 320, in from_words value = self._value_from_words(words=words, path=master.full_path()) File "/usr/local/phenix-dev-1405/cctbx_project/libtbx/phil/__init__.py", line 348, in _value_from_words return float_from_words(words=words, path=path) File "/usr/local/phenix-dev-1405/cctbx_project/libtbx/phil/__init__.py", line 274, in float_from_words result = number_from_words(words=words, path=path) File "/usr/local/phenix-dev-1405/cctbx_project/libtbx/phil/__init__.py", line 227, in number_from_words value_string=str_from_words(words), words=words, path=path) File "/usr/local/phenix-dev-1405/cctbx_project/libtbx/phil/__init__.py", line 212, in number_from_value_string path, value_string, words[0].where_str())) RuntimeError: Error interpreting high_resolution="True" as a numeric expression (command line argument, line 1) Ulrich-Baumanns-iMac:xds_new ubaumann$ cctbx.patterson_map au1_run1_Rfree.mtz --diff_limit 4 ---------------------------------------- Prof. Ulrich Baumann, PhD Institute of Biochemistry, University of Cologne Otto-Fischer-Strasse 12-14, D-50674 Cologne, Germany