cogent3.core.table.Columns#
- class Columns#
Collection of columns. iter operates over columns.
- Attributes:
arrayobject array of all columns
index_namecolumn name whose values can be used to index table rows
ordercolumn order
Methods
add_column_from_str(name, values)adds a column from series of str
clear()get(k[,d])items()keys()pop(k[,d])value.
popitem()as a 2-tuple; but raise KeyError if D is empty.
setdefault(k[,d])take_columns(columns)returns new Columns instance with just columns
to_dict()returns column based dict
update([E, ]**F)If E present and has a .keys() method, does:
values()iter_rows
to_rich_dict