Calculate the mean value for a single-column Frame.
This function is a shortcut for:
Parameters
None
is returned for string/object columns.
If called on a Frame that has more or less than one column.
See Also
.mean()
– similar to this method, but can be applied to
a Frame with an arbitrary number of columns.
dt.mean()
– function for calculatin mean values in a column or
an expression; can also be applied per-group.