aequilibrae.project.data package

Submodules

aequilibrae.project.data.matrices module

class aequilibrae.project.data.matrices.Matrices

Bases: object

Gateway into the matrices available/recorded in the model

__init__()

reload()

Discards all memory matrices in memory and loads recreate them

clear_database() → None

Removes records from the matrices database that do not exist in disk

update_database() → None

Adds records to the matrices database for matrix files found on disk

list() → pandas.core.frame.DataFrame

List of all matrices available Returns:

df (pd.DataFrame:) Pandas DataFrame listing all matrices available in the model

get_matrix(matrix_name: str) → aequilibrae.matrix.aequilibrae_matrix.AequilibraeMatrix

Returns an AequilibraE matrix available in the project

Raises an error if matrix does not exist

Args:

matrix_name (str:) Name of the matrix to be loaded

Returns:

matrix (AequilibraeMatrix:) Matrix object

get_record(matrix_name: str) → aequilibrae.project.data.matrix_record.MatrixRecord

Returns a model Matrix Record for manipulation in memory

check_exists(name: str) → bool

Checks whether a matrix with a given name exists

Returns:

exists (bool:) Does the matrix exist?

delete_record(matrix_name: str) → None

Deletes a Matrix Record from the model and attempts to remove from disk

new_record(name: str, file_name: str, matrix=<aequilibrae.matrix.aequilibrae_matrix.AequilibraeMatrix object>) → aequilibrae.project.data.matrix_record.MatrixRecord

Creates a new record for a matrix in disk, but does not save it

If the matrix file is not already on disk, it will fail

Args:

name (str): Name of the matrix file_name (str): Name of the file on disk

Return:

matrix_record (MatrixRecord): A matrix record that can be manipulated in memory before saving

aequilibrae.project.data.matrix_record module

class aequilibrae.project.data.matrix_record.MatrixRecord(data_set: dict)

Bases: aequilibrae.project.network.safe_class.SafeClass

__init__(data_set: dict)

save()

Saves matrix record to the project database

delete()

Deletes this matrix record and the underlying data from disk

update_cores()

Updates this matrix record with the matrix core count in disk

get_data() → aequilibrae.matrix.aequilibrae_matrix.AequilibraeMatrix

Returns the actual matrix for further computation

Returns:

matrix (AequilibraeMatrix:) Matrix object

Module contents