romcomma.user.functions.Vector

class Vector(name, **kwargs)

Bases: dict

A vector functon, which is little more than a named dictionary of Scalar functions, such that vector(X, **kwargs) concatenates scalar(X, **kwargs) for each dictionary item key: Scalar.

Parameters:

• name (str) –

• kwargs (Scalar) –

__init__(name, **kwargs)

Construct a vector function.

Parameters:

• name (str) – The name of this Vector.

• **kwargs (Scalar) – The Dict of Scalar``s comprising this ``Vector.

Methods

__init__(name, **kwargs)	Construct a vector function.
clear()
concat(name, vectors)	Concatenate vectors.
copy()
fromkeys([value])	Create a new dictionary with keys from iterable and values set to value.
get(key[, default])	Return the value for key if key is in the dictionary, else default.
items()
keys()
pop(k[,d])	If the key is not found, return the default if given; otherwise, raise a KeyError.
popitem()	Remove and return a (key, value) pair as a 2-tuple.
setdefault(key[, default])	Insert key with a value of default if key is not in the dictionary.
subVector(name, scalars)	Create a subVector of self.
update([E, ]**F)	If E is present and has a .keys() method, then does: for k in E: D[k] = E[k] If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v In either case, this is followed by: for k in F: D[k] = F[k]
values()

Attributes

meta	Meta data for providing to data.storage.
name

classmethod concat(name, vectors)

Concatenate vectors.

Parameters:

• name (str) – The name of the returned Vector.

• vectors (Sequence[Vector]) – A sequence of Vector functions to concatenate.

Return type:

Vector

Returns: The concatenation of vectors, named name.

property meta: Dict

Meta data for providing to data.storage.

subVector(name, scalars)

Create a subVector of self.

Parameters:

• name (str) – The name of the subVector.

• scalars (Sequence[str]) – The keys of the items of self to be included in subVector.

Return type:

Vector

Returns: A new instance of Vector named name containing the Scalars keyed scalars. Effectively the pseudo-slice self[scalars].

clear() → None.  Remove all items from D.

copy() → a shallow copy of D

fromkeys(value=None, /)

Create a new dictionary with keys from iterable and values set to value.

get(key, default=None, /)

Return the value for key if key is in the dictionary, else default.

items() → a set-like object providing a view on D's items

keys() → a set-like object providing a view on D's keys

pop(k[, d]) → v, remove specified key and return the corresponding value.

If the key is not found, return the default if given; otherwise, raise a KeyError.

popitem()

Remove and return a (key, value) pair as a 2-tuple.

Pairs are returned in LIFO (last-in, first-out) order. Raises KeyError if the dict is empty.

setdefault(key, default=None, /)

Insert key with a value of default if key is not in the dictionary.

Return the value for key if key is in the dictionary, else default.

update([E, ]**F) → None.  Update D from dict/iterable E and F.

If E is present and has a .keys() method, then does: for k in E: D[k] = E[k] If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v In either case, this is followed by: for k in F: D[k] = F[k]

values() → an object providing a view on D's values