emuR (version 0.1.9)

AddListRemoveLinkDefinition: Add / List / Remove linkDefinition to / of / from emuDB

Description

Add / List / Remove new link definition to / of / from emuDB. A link definition specifies the relationship between two levels, the super-level and the sub-level. The entirety of all link definitions of a emuDB specifies the hierarchical structure of the database. For more information on the structural elements of an emuDB see vignette(emuDB).

Usage

add_linkDefinition(emuDBhandle, type, superlevelName, sublevelName)
list_linkDefinitions(emuDBhandle)
remove_linkDefinition(emuDBhandle, superlevelName, sublevelName)

Arguments

emuDBhandle

emuDB handle as returned by load_emuDB

type

type of linkDefinition (either "ONE_TO_MANY", "MANY_TO_MANY" or "ONE_TO_ONE")

superlevelName

name of super-level of linkDefinition

sublevelName

name of sub-level of linkDefinition

Details

Link type descriptions:

• "ONE_TO_MANY"A single ITEM of the super-level can be linked to multiple ITEMs of the sub-level
• "MANY_TO_MANY"Multiple ITEMs of the super-level can be linked to multiple ITEMs of the sub-level
• "ONE_TO_ONE"A single ITEM of the super-level can be linked to a single ITEM of the sub-level

For all link types the rule applies that no links are allowed to cross any other links. Further, a linkDefinition can not be removed, if there are links present in the emuDB.

Examples

## Not run: 
# 
# ##################################
# # prerequisite: loaded emuDB that was converted
# # using the convert_TextGridCollection function called myTGcolDB
# # (see ?load_emuDB and ?convert_TextGridCollection for more information)
# 
# # add link definition from super-level "Phoneme"
# # to sub-level "Phonetic" of type "ONE_TO_MANY"
# # for myTGcolDB emuDB
# add_linkDefinition(emuDBhandle = myTGcolDB,
#                    type = "ONE_TO_MANY",
#                    superlevelName = "Phoneme",
#                    sublevelName = "Phonetic")
# 
# # list link definitions for myTGcolDB emuDB
# list_linkDefinitions(emuDBhandle = myTGcolDB)
# 
# # remove newly added link definition
# remove_linkDefinition(emuDBhandle = myTGcolDB,
#                       superlevelName = "Phoneme",
#                       sublevelName = "Phonetic")
# 
# 
# ## End(Not run)