--- a/numerics/convert.py	Tue Nov 04 15:54:50 2014 -0800
+++ b/numerics/convert.py	Tue Nov 04 16:49:27 2014 -0800
@@ -6,11 +6,14 @@
 
 import argparse
 import sys
-from .read import CSVParser
+from .read import read_csv
 
-__all__ = ['cast', 'float_or_orig']
+__all__ = ['cast', 'float_or_orig', 'main']
+
+default_cast = (int, float, )
 
 def cast(to_type, *values):
+
     retval = []
     for value in values:
         try:
@@ -19,8 +22,15 @@
             retval.append(value)
     return retval
 
+
 def float_or_orig(*values):
-    return cast(float, *values)
+    return cast([float], *values)
+
+
+def cast_column(values, to=default_cast):
+    """
+    cast a column of data
+    """
 
 def main(args=sys.argv[1:]):
     """CLI"""