Package index • acsets

Schemas

Define the structure of your data

BasicSchema(): ACSet Schema
attr_spec(): Create an attribute specification
attrtypes(): Get attribute type names from a schema
codom(): Get the codomain of an arrow
dom(): Get the domain of an arrow
hom(): Create a morphism (foreign key) specification
homs(): Get morphisms (foreign keys) from a schema
objects(): Get object names from a schema
types(): Get all type names (objects and attribute types)

ACSets

Create and manipulate attributed C-sets

ACSet(): Attributed C-Set
acset(): Construct an ACSet using named arguments or NSE
acset_type(): Create an ACSet type bound to a specific schema
add_part(): Add a single part, optionally setting subparts
add_parts(): Add multiple parts at once
set_subpart(): Set a single subpart value
set_subparts(): Set multiple subparts at once
clear_subpart(): Clear a subpart value
copy_acset(): Create a deep copy of an ACSet
disjoint_union(): Disjoint union of two ACSets with the same schema
gc_acset(): Garbage collection for BitSetParts (no-op for IntParts)
acset_equal(): Test structural equality of two ACSets

Queries

Query and filter ACSet data

From(): Start a query on an ACSet object type
Select(): Select columns from a query and return a data frame
Where(): Filter query results by a subpart value
arrows(): Get all arrows (morphisms and attributes) from a schema
attrs(): Get attribute specs from a schema
has_part(): Check if a part exists
has_subpart(): Check if a subpart (morphism/attribute) exists in the schema
incident(): Incident query: find parts whose subpart equals a given value
maxpart(): Maximum part ID for an object type
nparts(): Number of parts of a given object type
parts(): Get all part IDs for an object type
subpart(): Get subpart value(s)
tables(): Get all tables from an ACSet

Serialization

JSON import/export and data frames

generate_json_acset(): Generate JSON-compatible list from an ACSet
generate_json_schema(): Generate a JSON-compatible list from a schema
parse_json_acset(): Parse a JSON-compatible list into an ACSet
parse_json_schema(): Parse a JSON-compatible list into a BasicSchema
read_json_acset(): Read an ACSet from JSON file
write_json_acset(): Write an ACSet to JSON file
as_data_frame(): Convert ACSet object type to data.frame

Deletion

Remove parts with cascading

rem_part(): Remove a single part using pop-and-swap strategy
rem_parts(): Remove multiple parts (must be processed from largest to smallest)
cascading_rem_part(): Remove a part and cascade to dependent parts
cascading_rem_parts(): Remove multiple parts with cascading