SCEngine

class astropy.table.SCEngine(data, row_index, unique=False)

Bases: object

Fast tree-based implementation for indexing, using the sortedcontainers package.

Parameters:

dataTable

Sorted columns of the original table

row_indexColumn object

Row numbers corresponding to data columns

uniquebool

Whether the values of the index must be unique. Defaults to False.

Methods Summary

add(key, value)	Add a key, value pair.
find(key)	Find rows corresponding to the given key.
items()	Return a list of key, data tuples.
range(lower, upper[, bounds])	Return row values in the given range.
remove(key[, data])	Remove data from the given key.
replace_rows(row_map)	Replace rows with the values in row_map.
shift_left(row)	Decrement rows larger than the given row.
shift_right(row)	Increment rows greater than or equal to the given row.
sort()	Make row order align with key order.
sorted_data()	Return a list of rows in order sorted by key.

Methods Documentation

add(key, value)

Add a key, value pair.

find(key)

Find rows corresponding to the given key.

items()

Return a list of key, data tuples.

range(lower, upper, bounds=(True, True))

Return row values in the given range.

remove(key, data=None)

Remove data from the given key.

replace_rows(row_map)

Replace rows with the values in row_map.

shift_left(row)

Decrement rows larger than the given row.

shift_right(row)

Increment rows greater than or equal to the given row.

sort()

Make row order align with key order.

sorted_data()

Return a list of rows in order sorted by key.