ft_sub {fctutils} | R Documentation |
Reorder Factor Levels Based on Substrings
Description
Reorders the levels of a factor vector based on substrings extracted from the factor levels.
Usage
ft_sub(
factor_vec,
start_pos = NULL,
end_pos = NULL,
case = FALSE,
decreasing = FALSE,
inplace = TRUE
)
Arguments
factor_vec |
A factor vector whose levels are to be reordered. |
start_pos |
Positive integer. The starting position of the substring. If |
end_pos |
Positive integer. The ending position of the substring. If |
case |
Logical. Should the substring comparison be case-sensitive? Default is |
decreasing |
Logical. Should the ordering be decreasing? Default is |
inplace |
Logical. If |
Value
A factor vector with levels reordered based on the specified substring.
Author(s)
Kai Guo
Examples
# Example factor vector
factor_vec <- factor(c('Apple', 'banana', 'Cherry', 'date', 'Fig', 'grape'))
# Reorder based on substring from position 2 to 4
ft_sub(factor_vec, start_pos = 2, end_pos = 4)
# Reorder from position 3 to end, case-sensitive
ft_sub(factor_vec, start_pos = 3, case = TRUE)