earthkit.data.utils.factorise¶

Classes¶

`Column`	Just what is says on the tin, a column of values.
`Interval`
`Table`
`Tree`

Functions¶

factorise(req, *[, intervals])

Module Contents¶

class earthkit.data.utils.factorise.Column(title, values)¶

Bases: object

Just what is says on the tin, a column of values.

compute_differences(idx)¶

Number of unique values in this column for the requested row indexes.

@param idx list of row indexes

diff = -1¶

prio = 0¶

set_value(i, v)¶

title¶

value(i)¶

values¶

class earthkit.data.utils.factorise.Interval(start, end)¶

Bases: object

count()¶

end¶

classmethod expand(lst)¶

classmethod intersection(list1, list2)¶

intersects(other)¶: Returns the intersection of two intervals if they overlap, else None.

classmethod join(intervals)¶

overlaps(other)¶: Returns the union of two intervals if they overlap, else None.

split(dates)¶

start¶

class earthkit.data.utils.factorise.Table(other=None, a=None, b=None)¶

Bases: object

column(s, col)¶

compare_rows(a, b)¶

compare_values(sa, sb)¶

factorise1()¶

factorise2(n)¶

get_elem(c, r)¶

one_less(r, n)¶

pop_singles()¶: Take the column with just one unique value and add them to the tree. Delete their index from the list of column indexes.

process()¶

set_elem(c, r, v)¶

sort_columns()¶: Sort the columns on the number of unique values (this column.diff).

sort_rows()¶

split()¶

tree¶

class earthkit.data.utils.factorise.Tree(values=None, intervals=None)¶

as_mars(verb='retrieve', extra=None)¶

as_mars_list()¶

compact()¶

count(_kwargs=None, **kwargs)¶

factorise()¶

flatten()¶

iterate(expand=False)¶

missing(**kwargs)¶

select(**kwargs)¶

to_list()¶

tree()¶

unique_values()¶

visit(visitor, depth=0)¶

earthkit.data.utils.factorise.factorise(req, *, intervals=None)¶