tridas.vocabulary {dplR} | R Documentation |
This function can be used to browse the TRiDaS vocabulary by category.
tridas.vocabulary(category = c("dating type", "measuring method",
"shape", "location type", "variable", "unit",
"remark", "dating suffix", "presence / absence",
"complex presence / absence", "certainty"),
idx = NA, term = NA, match.exact = FALSE)
category |
Vocabulary category as a |
idx |
A |
term |
A |
match.exact |
A |
The Tree Ring Data Standard (TRiDaS) is described in Jansma et. al (2010).
The function has four usage modes:
When idx
is given, returns item number
idx
in the given category
. There may be
several numbers in idx
, in which case multiple items
are returned.
When term
contains one or more items and
match.exact
is TRUE
, checks whether any of the
terms is an exact match in the given category
When term
contains one or more items and
match.exact
is FALSE
, expands partial matches of
the terms in the vocabulary of the given category
When only category
is given, returns the complete
vocabulary in the given category
In mode 1 |
A |
In mode 2 |
A |
In mode 3 |
A |
In mode 4 |
A |
Mikko Korpela
Jansma, E., Brewer, P. W., and Zandhuis, I. (2010) TRiDaS 1.1: The tree-ring data standard. Dendrochronologia, 28(2), 99–130.
## Show all entries in category "measuring method"
tridas.vocabulary(category = "measuring")
## Show item number one in category "complex presence / absence"
tridas.vocabulary(category = "complex", idx = 1)
## Check whether "half section" exists in category "shape"
tridas.vocabulary(category = "shape", term = "half section",
match.exact = TRUE)
## Return unabbreviated matches to several queries in category "remark"
tridas.vocabulary(category = "remark",
term = c("trauma", "fire", "diffuse"))