diff --git a/src/diffpy/labpdfproc/functions.py b/src/diffpy/labpdfproc/functions.py
index 494be9b..03b7061 100644
--- a/src/diffpy/labpdfproc/functions.py
+++ b/src/diffpy/labpdfproc/functions.py
@@ -27,16 +27,6 @@ def _get_grid_points(self):
         self.grid = {(x, y) for x in xs for y in ys if x**2 + y**2 <= self.radius**2}
         self.total_points_in_grid = len(self.grid)
 
-    # def get_coordinate_index(self, coordinate):  # I think we probably dont need this function?
-    #     count = 0
-    #     for i, target in enumerate(self.grid):
-    #         if coordinate == target:
-    #             return i
-    #         else:
-    #             count += 1
-    #     if count >= len(self.grid):
-    #         raise IndexError(f"WARNING: no coordinate {coordinate} found in coordinates list")
-
     def set_distances_at_angle(self, angle):
         """
         given an angle, set the distances from the grid points to the entry and exit coordinates
diff --git a/src/diffpy/labpdfproc/labpdfprocapp.py b/src/diffpy/labpdfproc/labpdfprocapp.py
index aedbd0a..986a95d 100644
--- a/src/diffpy/labpdfproc/labpdfprocapp.py
+++ b/src/diffpy/labpdfproc/labpdfprocapp.py
@@ -14,14 +14,14 @@ def get_args(override_cli_inputs=None):
         "input",
         nargs="+",
         help="The filename(s) or folder(s) of the datafile(s) to load.  "
-        "Required.\nSupply a space-separated list of files or directories."
+        "Required.\nSupply a space-separated list of files or directories. "
         "Long lists can be supplied, one per line, in a file with name "
         "file_list.txt. If one or more directory is provided, all valid "
         "data-files in that directory will be processed. Examples of valid "
         "inputs are 'file.xy', 'data/file.xy', 'file.xy, data/file.xy', "
-        "'.' (load everything in the current directory), 'data' (load"
-        "everything in the folder ./data), 'data/file_list.txt' (load"
-        " the list of files contained in the text-file called "
+        "'.' (load everything in the current directory), 'data' (load "
+        "everything in the folder ./data), 'data/file_list.txt' (load "
+        "the list of files contained in the text-file called "
         "file_list.txt that can be found in the folder ./data), "
         "'./*.chi', 'data/*.chi' (load all files with extension .chi in the "
         "folder ./data).",
@@ -45,7 +45,7 @@ def get_args(override_cli_inputs=None):
         "-o",
         "--output-directory",
         help="The name of the output directory. If not specified "
-        "then corrected files will be written to the current directory."
+        "then corrected files will be written to the current directory. "
         "If the specified directory doesn't exist it will be created.",
         default=None,
     )
@@ -64,7 +64,6 @@ def get_args(override_cli_inputs=None):
         action="store_true",
         help="The absorption correction will be output to a file if this "
         "flag is set. Default is that it is not output.",
-        default="tth",
     )
     p.add_argument(
         "-f",
diff --git a/src/diffpy/labpdfproc/tools.py b/src/diffpy/labpdfproc/tools.py
index 5ada419..3100596 100644
--- a/src/diffpy/labpdfproc/tools.py
+++ b/src/diffpy/labpdfproc/tools.py
@@ -110,13 +110,12 @@ def set_wavelength(args):
     args argparse.Namespace
         the arguments from the parser
 
+    we raise a ValueError if the input wavelength is non-positive
+    or if the input anode_type is not one of the known sources
+
     Returns
     -------
     args argparse.Namespace
-
-    we raise an ValueError if the input wavelength is non-positive
-    or if the input anode_type is not one of the known sources
-
     """
     if args.wavelength is not None and args.wavelength <= 0:
         raise ValueError(