| splitQual {NADA} | R Documentation |
Split character qualifiers and numeric values from qualified data
Description
splitQual extracts qualified and unqualified vectors
from a character vector containing concatenated
numeric and qualifying characters.
Typically used to split “less-thans" in qualifier-numeric concatenations like “<0.5".
Usage
splitQual(v, qual.symbol= "<") Arguments
v |
A character vector. |
qual.symbol |
The qualifier symbol to split from the characters in v. Defaults to “<". |
Value
splitQual returns a list of three vectors.
qual |
A numeric vector of values associated with qualified input. |
unqual |
A numeric vector of values associated with unqualified input |
qual.index |
Indexes of qualified values (ie., where qual.symbol was matched) |
unqual.index |
Indexes of unqualified values (ie., where qual.symbol was not matched) |
Author(s)
R. Lopaka Lee <rclee@usgs.gov>
Dennis Helsel <dhelsel@practicalstats.com>
References
Lee and Helsel (2005), Statistical analysis of environmental data containing multiple detection limits: S-language software for regression on order statistics, Computers in Geoscience vol. 31, pp. 1241-1248
Examples
v = c('<1', 1, '<1', 1, 2)
splitQual(v)