neurolang.utils.relational_algebra_set.abstract module

class neurolang.utils.relational_algebra_set.abstract.NamedRelationalAlgebraFrozenSet(columns, iterable=None)

Bases: RelationalAlgebraFrozenSet

Attributes:

arity

columns

Methods

isdisjoint(other)

Return True if two sets have a null intersection.

aggregate
as_numpy_array
copy
create_view_from
cross_product
dee
dum
equijoin
explode
extended_projection
fetch_one
groupby
is_dee
is_dum
is_empty
itervalues
left_naturaljoin
naturaljoin
projection
projection_to_unnamed
rename_column
rename_columns
replace_null
selection
selection_columns
to_unnamed

abstract aggregate(group_columns, aggregate_function)

abstract property arity

abstract property columns

abstract cross_product(other)

classmethod dee()

classmethod dum()

equijoin(other, join_indices)

abstract explode(src_column, dst_columns)

abstract extended_projection(eval_expressions)

abstract fetch_one()

abstract groupby(columns)

abstract left_naturaljoin(other)

abstract naturaljoin(other)

abstract projection(*columns)

abstract projection_to_unnamed(*columns)

abstract rename_column(src, dst)

abstract rename_columns(renames)

abstract replace_null(dst_column, value)

abstract to_unnamed()

class neurolang.utils.relational_algebra_set.abstract.RelationalAlgebraColumn

Bases: object

class neurolang.utils.relational_algebra_set.abstract.RelationalAlgebraColumnInt

Bases: int, RelationalAlgebraColumn

Attributes:

denominator

the denominator of a rational number in lowest terms

imag

the imaginary part of a complex number

numerator

the numerator of a rational number in lowest terms

real

the real part of a complex number

Methods

as_integer_ratio(/)	Return integer ratio.
bit_length(/)	Number of bits necessary to represent self in binary.
conjugate	Returns self, the complex conjugate of any int.
from_bytes(/, bytes, byteorder, *[, signed])	Return the integer represented by the given array of bytes.
to_bytes(/, length, byteorder, *[, signed])	Return an array of bytes representing an integer.

class neurolang.utils.relational_algebra_set.abstract.RelationalAlgebraColumnStr

Bases: str, RelationalAlgebraColumn

Methods

capitalize(/)	Return a capitalized version of the string.
casefold(/)	Return a version of the string suitable for caseless comparisons.
center(width[, fillchar])	Return a centered string of length width.
count(sub[, start[, end]])	Return the number of non-overlapping occurrences of substring sub in string S[start:end].
encode(/[, encoding, errors])	Encode the string using the codec registered for encoding.
endswith(suffix[, start[, end]])	Return True if S ends with the specified suffix, False otherwise.
expandtabs(/[, tabsize])	Return a copy where all tab characters are expanded using spaces.
find(sub[, start[, end]])	Return the lowest index in S where substring sub is found, such that sub is contained within S[start:end].
format(*args, **kwargs)	Return a formatted version of S, using substitutions from args and kwargs.
format_map(mapping)	Return a formatted version of S, using substitutions from mapping.
index(sub[, start[, end]])	Return the lowest index in S where substring sub is found, such that sub is contained within S[start:end].
isalnum(/)	Return True if the string is an alpha-numeric string, False otherwise.
isalpha(/)	Return True if the string is an alphabetic string, False otherwise.
isascii(/)	Return True if all characters in the string are ASCII, False otherwise.
isdecimal(/)	Return True if the string is a decimal string, False otherwise.
isdigit(/)	Return True if the string is a digit string, False otherwise.
isidentifier(/)	Return True if the string is a valid Python identifier, False otherwise.
islower(/)	Return True if the string is a lowercase string, False otherwise.
isnumeric(/)	Return True if the string is a numeric string, False otherwise.
isprintable(/)	Return True if the string is printable, False otherwise.
isspace(/)	Return True if the string is a whitespace string, False otherwise.
istitle(/)	Return True if the string is a title-cased string, False otherwise.
isupper(/)	Return True if the string is an uppercase string, False otherwise.
join(iterable, /)	Concatenate any number of strings.
ljust(width[, fillchar])	Return a left-justified string of length width.
lower(/)	Return a copy of the string converted to lowercase.
lstrip([chars])	Return a copy of the string with leading whitespace removed.
maketrans(x[, y, z])	Return a translation table usable for str.translate().
partition(sep, /)	Partition the string into three parts using the given separator.
replace(old, new[, count])	Return a copy with all occurrences of substring old replaced by new.
rfind(sub[, start[, end]])	Return the highest index in S where substring sub is found, such that sub is contained within S[start:end].
rindex(sub[, start[, end]])	Return the highest index in S where substring sub is found, such that sub is contained within S[start:end].
rjust(width[, fillchar])	Return a right-justified string of length width.
rpartition(sep, /)	Partition the string into three parts using the given separator.
rsplit(/[, sep, maxsplit])	Return a list of the words in the string, using sep as the delimiter string.
rstrip([chars])	Return a copy of the string with trailing whitespace removed.
split(/[, sep, maxsplit])	Return a list of the words in the string, using sep as the delimiter string.
splitlines(/[, keepends])	Return a list of the lines in the string, breaking at line boundaries.
startswith(prefix[, start[, end]])	Return True if S starts with the specified prefix, False otherwise.
strip([chars])	Return a copy of the string with leading and trailing whitespace removed.
swapcase(/)	Convert uppercase characters to lowercase and lowercase characters to uppercase.
title(/)	Return a version of the string where each word is titlecased.
translate(table, /)	Replace each character in the string using the given translation table.
upper(/)	Return a copy of the string converted to uppercase.
zfill(width, /)	Pad a numeric string with zeros on the left, to fill a field of the given width.

class neurolang.utils.relational_algebra_set.abstract.RelationalAlgebraFrozenSet(columns)

Bases: Set

Attributes:

arity

columns

Methods

isdisjoint(other)

Return True if two sets have a null intersection.

as_numpy_array
copy
create_view_from
cross_product
dee
dum
equijoin
fetch_one
groupby
is_dee
is_dum
is_empty
itervalues
projection
selection
selection_columns

abstract property arity

abstract as_numpy_array()

abstract property columns

abstract copy()

classmethod create_view_from(other)

abstract cross_product(other)

classmethod dee()

classmethod dum()

abstract equijoin(other, join_indices)

abstract fetch_one()

abstract groupby(columns)

is_dee()

is_dum()

abstract is_empty()

abstract itervalues()

abstract projection(*columns)

abstract selection(select_criteria)

abstract selection_columns(select_criteria)

class neurolang.utils.relational_algebra_set.abstract.RelationalAlgebraSet(columns)

Bases: RelationalAlgebraFrozenSet, MutableSet

Attributes:

arity

columns

Methods

add(value)	Add an element.
clear()	This is slow (creates N new iterators!) but effective.
discard(value)	Remove an element.
isdisjoint(other)	Return True if two sets have a null intersection.
pop()	Return the popped value.
remove(value)	Remove an element.

as_numpy_array
copy
create_view_from
cross_product
dee
dum
equijoin
fetch_one
groupby
is_dee
is_dum
is_empty
itervalues
projection
selection
selection_columns

abstract add(value)

Add an element.

abstract discard(value)

Remove an element. Do not raise an exception if absent.