View source: R/higherTaxaCodes.R
preceding_taxon_codes | R Documentation |
Find all codes that logically precede the specified codes. For instance, code "ABC" ("Anhyturbels") returns "AA" ("Histels") "ABA" ("Histoturbels") and "ABB" ("Aquiturbels"). Use in conjunction with a lookup table that maps Order, Suborder, Great Group and Subgroup taxa to their codes (see taxon_code_to_taxon
and taxon_to_taxon_code
).
preceding_taxon_codes(codes)
codes |
A character vector of codes to calculate preceding codes for |
Accounts for Keys that run out of capital letters (more than 26 subgroups) and use lowercase letters for a unique subdivision within the "fourth character position."
A list with equal length to input vector; one character vector per element
decompose_taxon_code
, taxon_code_to_taxon
, taxon_to_taxon_code
preceding_taxon_codes(c("ABCDe", "BCDEf"))
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