move float_or_nan to utils

3 files changed, 9 insertions, 17 deletions

diff --git a/lib/dfatool.py b/lib/dfatool.py
index c5b58ee..93641d0 100755
--- a/lib/dfatool.py
+++ b/lib/dfatool.py
@@ -44,15 +44,6 @@ def soft_cast_int(n):
     except ValueError:
         return n
 
-def float_or_nan(n):
-    """Convert to float (if numeric) or NaN."""
-    if n == None:
-        return np.nan
-    try:
-        return float(n)
-    except ValueError:
-        return np.nan
-
 def vprint(verbose, string):
     """
     Print string if verbose.
diff --git a/lib/plotter.py b/lib/plotter.py
index e4d9926..2398c12 100755
--- a/lib/plotter.py
+++ b/lib/plotter.py
@@ -6,14 +6,6 @@ import matplotlib.pyplot as plt
 import re
 from matplotlib.patches import Polygon
 
-def float_or_nan(n):
-    if n == None:
-        return np.nan
-    try:
-        return float(n)
-    except ValueError:
-        return np.nan
-
 def flatten(somelist):
     """
     Flatten a list.
diff --git a/lib/utils.py b/lib/utils.py
index 7c28c91..f6a34e3 100644
--- a/lib/utils.py
+++ b/lib/utils.py
@@ -12,6 +12,15 @@ def is_numeric(n):
     except ValueError:
         return False
 
+def float_or_nan(n):
+    """Convert to float (if numeric) or NaN."""
+    if n == None:
+        return np.nan
+    try:
+        return float(n)
+    except ValueError:
+        return np.nan
+
 def param_slice_eq(a, b, index):
     """
     Check if by_param keys a and b are identical, ignoring the parameter at index.