dtcenter · georgemccabe · Feb 3, 2026 · Jan 28, 2026 · Jan 28, 2026 · Jan 28, 2026
diff --git a/.idea/METplus.iml b/.idea/METplus.iml
diff --git a/.idea/misc.xml b/.idea/misc.xml
diff --git a/docs/Users_Guide/glossary.rst b/docs/Users_Guide/glossary.rst
@@ -14979,3 +14979,18 @@ METplus Configuration Glossary
      Specify the value for 'ss_index_vld_thresh' in the MET configuration file for StatAnalysis.
 
      | *Used by:* StatAnalysis
+
+   GRID_DIAG_OUTPUT_FLAG_HISTOGRAM_1D
+     Specify the value for 'output_flag.histogram_1d' in the MET configuration file for GridDiag.
+
+     | *Used by:* GridDiag
+
+   GRID_DIAG_OUTPUT_FLAG_HISTOGRAM_2D
+     Specify the value for 'output_flag.histogram_2d' in the MET configuration file for GridDiag.
+
+     | *Used by:* GridDiag
+
+   GRID_DIAG_OUTPUT_FLAG_INFO_THEORY
+     Specify the value for 'output_flag.info_theory' in the MET configuration file for GridDiag.
+
+     | *Used by:* GridDiag
diff --git a/docs/Users_Guide/wrappers.rst b/docs/Users_Guide/wrappers.rst
@@ -3272,7 +3272,10 @@ METplus Configuration
 | :term:`GRID_DIAG_INC_INIT_TIMES`
 | :term:`GRID_DIAG_ALLOW_MISSING_INPUTS`
 | :term:`GRID_DIAG_INPUT_THRESH`
-|
+| :term:`GRID_DIAG_OUTPUT_FLAG_HISTOGRAM_1D`
+| :term:`GRID_DIAG_OUTPUT_FLAG_HISTOGRAM_2D`
+| :term:`GRID_DIAG_OUTPUT_FLAG_INFO_THEORY`
+
 
 .. _grid-diag-met-conf:
 
@@ -3396,6 +3399,22 @@ ${METPLUS_MASK_DICT}
 
 .. note:: Since the default value in the MET config file for 'grid' is grid = [ "FULL" ];, setting GRID_DIAG_MASK_GRID to an empty string will result in a value of grid = []; in the MET config file.
 
+${METPLUS_OUTPUT_FLAG_DICT}
+"""""""""""""""""""""""""""
+
+.. list-table::
+   :widths: 5 5
+   :header-rows: 1
+
+   * - METplus Config(s)
+     - MET Config File
+   * - :term:`GRID_DIAG_OUTPUT_FLAG_HISTOGRAM_1D`
+     - output_flag.histogram_1d
+   * - :term:`GRID_DIAG_OUTPUT_FLAG_HISTOGRAM_2D`
+     - output_flag.histogram_2d
+   * - :term:`GRID_DIAG_OUTPUT_FLAG_INFO_THEORY`
+     - output_flag.info_theory
+
 ${METPLUS_MET_CONFIG_OVERRIDES}
 """""""""""""""""""""""""""""""
 

diff --git a/internal/scripts/dev_tools/add_met_config_helper.py b/internal/scripts/dev_tools/add_met_config_helper.py
@@ -354,11 +354,12 @@ def _get_output_item(dict_items, met_config_name):
     if not dict_items:
         return 'VALUE'
 
-    item_name, child_name, *_ = met_config_name.split('.')[1:]
-    value = 'VALUE;'
-    if child_name:
-        value = f"{{{child_name} = VALUE;}}"
-    return f"{item_name} = {value}"
+    item_name, *rest = met_config_name.split('.')[1:]
+    child_name = rest[0] if rest else None
+    if not child_name:
+        return f"{item_name} = VALUE;"
+
+    return f"{item_name} = {{{child_name} = VALUE;}}"
 
 
 def doc_util_usage():

diff --git a/internal/tests/pytests/wrappers/grid_diag/test_grid_diag.py b/internal/tests/pytests/wrappers/grid_diag/test_grid_diag.py
@@ -268,15 +268,20 @@ def test_get_config_file(metplus_config):
          {'METPLUS_CENSOR_VAL': 'censor_val = [12000, 5000];'}),
 
         ({'GRID_DIAG_MASK_GRID': 'FULL', },
-         {'METPLUS_MASK_DICT': 'mask = {grid = "FULL";}'}),
+         {'METPLUS_MASK_DICT': 'mask = {grid = ["FULL"];}'}),
 
         ({'GRID_DIAG_MASK_POLY': 'MET_BASE/poly/EAST.poly', },
-         {'METPLUS_MASK_DICT': 'mask = {poly = "MET_BASE/poly/EAST.poly";}'}),
+         {'METPLUS_MASK_DICT': 'mask = {poly = ["MET_BASE/poly/EAST.poly"];}'}),
 
         ({'GRID_DIAG_MASK_GRID': 'FULL',
-          'GRID_DIAG_MASK_POLY': 'MET_BASE/poly/EAST.poly',},
-         {'METPLUS_MASK_DICT': ('mask = {grid = "FULL";'
-                                'poly = "MET_BASE/poly/EAST.poly";}')}),
+          'GRID_DIAG_MASK_POLY': 'MET_BASE/poly/EAST.poly', },
+         {'METPLUS_MASK_DICT': ('mask = {grid = ["FULL"];'
+                                'poly = ["MET_BASE/poly/EAST.poly"];}')}),
+
+        ({'GRID_DIAG_MASK_GRID': 'FULL,DTC165',
+          'GRID_DIAG_MASK_POLY': 'MET_BASE/poly/EAST.poly,  MET_BASE/poly/WEST.poly', },
+         {'METPLUS_MASK_DICT': ('mask = {grid = ["FULL", "DTC165"];'
+                                'poly = ["MET_BASE/poly/EAST.poly", "MET_BASE/poly/WEST.poly"];}')}),
 
         ({'GRID_DIAG_REGRID_TO_GRID': 'FCST',},
          {'METPLUS_REGRID_DICT': 'regrid = {to_grid = FCST;}'}),
@@ -331,7 +336,20 @@ def test_get_config_file(metplus_config):
              ),
          ]
          }),
+        ({'GRID_DIAG_OUTPUT_FLAG_HISTOGRAM_1D': 'true', },
+         {'METPLUS_OUTPUT_FLAG_DICT': 'output_flag = {histogram_1d = TRUE;}'}),
+
+        ({'GRID_DIAG_OUTPUT_FLAG_HISTOGRAM_2D': 'false', },
+         {'METPLUS_OUTPUT_FLAG_DICT': 'output_flag = {histogram_2d = FALSE;}'}),
+
+        ({'GRID_DIAG_OUTPUT_FLAG_INFO_THEORY': 'True', },
+         {'METPLUS_OUTPUT_FLAG_DICT': 'output_flag = {info_theory = TRUE;}'}),
 
+        ({'GRID_DIAG_OUTPUT_FLAG_HISTOGRAM_1D': 'true',
+          'GRID_DIAG_OUTPUT_FLAG_HISTOGRAM_2D': 'false',
+          'GRID_DIAG_OUTPUT_FLAG_INFO_THEORY': 'True',
+         },
+         {'METPLUS_OUTPUT_FLAG_DICT': 'output_flag = {histogram_1d = TRUE;histogram_2d = FALSE;info_theory = TRUE;}'}),
     ]
 )
 @pytest.mark.wrapper

diff --git a/internal/tests/pytests/wrappers/ioda2nc/test_ioda2nc_wrapper.py b/internal/tests/pytests/wrappers/ioda2nc/test_ioda2nc_wrapper.py
@@ -210,7 +210,9 @@ def test_ioda2nc_missing_inputs(metplus_config, get_test_data_dir, run_all_and_c
           'IODA2NC_NMSG': '10',
           },
          {}, ' -iodafile *INPUT_DIR*/other/file.nc -valid_beg 20200309_12 -valid_end 20200310_12 -nmsg 10'),
-
+        # 40 quality_mark_thresh threshold value
+        ({'IODA2NC_QUALITY_MARK_THRESH': '<=2||==9', },
+         {'METPLUS_QUALITY_MARK_THRESH': 'quality_mark_thresh = <=2||==9;'}, ''),
     ]
 )
 @pytest.mark.wrapper

diff --git a/internal/tests/pytests/wrappers/pb2nc/test_pb2nc_wrapper.py b/internal/tests/pytests/wrappers/pb2nc/test_pb2nc_wrapper.py
@@ -171,6 +171,9 @@ def test_find_input_files(metplus_config, offsets, offset_to_find):
         ({'PB2NC_QUALITY_MARK_THRESH': '3', },
          {'METPLUS_QUALITY_MARK_THRESH': 'quality_mark_thresh = 3;'}),
 
+        ({'PB2NC_QUALITY_MARK_THRESH': '<=2||==9', },
+         {'METPLUS_QUALITY_MARK_THRESH': 'quality_mark_thresh = <=2||==9;'}),
+
         ({'PB2NC_TIME_SUMMARY_FLAG': 'True', },
          {'METPLUS_TIME_SUMMARY_DICT': 'time_summary = {flag = TRUE;}'}),
 

diff --git a/metplus/wrappers/grid_diag_wrapper.py b/metplus/wrappers/grid_diag_wrapper.py
@@ -33,6 +33,7 @@ class GridDiagWrapper(RuntimeFreqWrapper):
         'METPLUS_CENSOR_VAL',
         'METPLUS_DATA_DICT',
         'METPLUS_MASK_DICT',
+        'METPLUS_OUTPUT_FLAG_DICT',
     ]
 
     # deprecated env vars that are no longer supported in the wrapped MET conf
@@ -43,6 +44,12 @@ class GridDiagWrapper(RuntimeFreqWrapper):
         'VERIF_MASK',
     ]
 
+    OUTPUT_FLAGS = [
+        'histogram_1d',
+        'histogram_2d',
+        'info_theory',
+    ]
+
     def __init__(self, config, instance=None):
         self.app_name = "grid_diag"
         self.app_path = os.path.join(config.getdir('MET_BIN_DIR'),
@@ -84,10 +91,12 @@ def create_c_dict(self):
 
         self.handle_description()
 
-        self.handle_mask(single_value=True)
+        self.handle_mask(single_value=False)
 
         self.handle_censor_val_and_thresh()
 
+        self.handle_flags('OUTPUT')
+
         c_dict['VAR_LIST_TEMP'] = parse_var_list(self.config,
                                                  data_type='FCST',
                                                  met_tool=self.app_name,

diff --git a/metplus/wrappers/ioda2nc_wrapper.py b/metplus/wrappers/ioda2nc_wrapper.py
@@ -96,7 +96,8 @@ def create_c_dict(self):
                             extra_args={'remove_quotes': True})
         self.add_met_config(name='missing_thresh', data_type='list',
                             extra_args={'remove_quotes': True})
-        self.add_met_config(name='quality_mark_thresh', data_type='int')
+        self.add_met_config(name='quality_mark_thresh', data_type='string',
+                            extra_args={'remove_quotes': True})
         self.handle_time_summary_dict()
 
         return c_dict

diff --git a/metplus/wrappers/pb2nc_wrapper.py b/metplus/wrappers/pb2nc_wrapper.py
@@ -110,20 +110,17 @@ def create_c_dict(self):
         c_dict['ALLOW_MULTIPLE_FILES'] = True
         c_dict['SUPPORTS_FILE_LIST'] = False
 
-        self.add_met_config(name='pb_report_type',
-                            data_type='list',
-                            metplus_configs=['PB2NC_PB_REPORT_TYPE'],
+        self.add_met_config(name='pb_report_type', data_type='list',
                             extra_args={'remove_quotes': True})
 
         # get level_range beg and end
         self.add_met_config_window('level_range')
 
         self.add_met_config(name='level_category', data_type='list',
-                            metplus_configs=['PB2NC_LEVEL_CATEGORY'],
                             extra_args={'remove_quotes': True})
 
-        self.add_met_config(name='quality_mark_thresh', data_type='int',
-                            metplus_configs=['PB2NC_QUALITY_MARK_THRESH'])
+        self.add_met_config(name='quality_mark_thresh', data_type='string',
+                            extra_args={'remove_quotes': True})
 
         self.add_met_config(name='obs_bufr_map', data_type='list',
                             extra_args={'remove_quotes': True})

diff --git a/parm/met_config/GridDiagConfig_wrapped b/parm/met_config/GridDiagConfig_wrapped
@@ -39,6 +39,9 @@ ${METPLUS_DATA_DICT}
 //mask = {
 ${METPLUS_MASK_DICT}
 
+//output_flag = {
+${METPLUS_OUTPUT_FLAG_DICT}
+
 tmp_dir = "${MET_TMP_DIR}";
 
 ${METPLUS_MET_CONFIG_OVERRIDES}
diff --git a/parm/use_cases/met_tool_wrapper/GridDiag/GridDiag.conf b/parm/use_cases/met_tool_wrapper/GridDiag/GridDiag.conf
@@ -83,3 +83,7 @@ GRID_DIAG_CONFIG_FILE = {PARM_BASE}/met_config/GridDiagConfig_wrapped
 #GRID_DIAG_REGRID_CENSOR_VAL =
 
 GRID_DIAG_MASK_POLY = MET_BASE/poly/SAO.poly
+
+#GRID_DIAG_OUTPUT_FLAG_HISTOGRAM_1D =
+#GRID_DIAG_OUTPUT_FLAG_HISTOGRAM_2D =
+#GRID_DIAG_OUTPUT_FLAG_INFO_THEORY =