plot: Fix 'columns' to 'incols' in docstrings
@@ -80,7 +80,7 @@ def plot(self, x=None, y=None, data=None, size=None, direction=None, **kwargs):
data : str or {table-like}
Pass in either a file name to an ASCII data table, a 2D
{table-classes}.
- Use parameter ``columns`` to choose which columns are x, y, color, and
+ Use parameter ``incols`` to choose which columns are x, y, color, and
size, respectively.
size : 1d array
The size of the data points in units specified using ``style``.
