Nothing
## ---- include = FALSE---------------------------------------------------------
knitr::opts_chunk$set(
collapse = TRUE,
comment = "#>"
)
## ----setup--------------------------------------------------------------------
library(thinkr)
## -----------------------------------------------------------------------------
dataset <- data.frame(
col_a = as.factor(letters)[1:7],
col_b = letters[1:7],
col_c = 1:7,
col_d = paste0(letters[1:7], letters[1:7]),
stringsAsFactors = FALSE)
# Show original dataset
dataset
# replace pattern
replace_pattern(dataset, "a", 'XXX-')
## -----------------------------------------------------------------------------
replace_pattern(dataset, "a", 'XXX-', exact = TRUE)
## ---- error=TRUE, message=TRUE------------------------------------------------
## returns TRUE because all levels of iris$species are in c("setosa", "versicolor", "virginica")
is_likert(iris$Species, c("setosa", "versicolor", "virginica"))
## returns TRUE because all levels of iris$species are in c("setosa", "versicolor", "virginica", "banana"), even though there is actually no level "banana"
# A message is printed
is_likert(iris$Species, c("setosa", "versicolor", "virginica", "banana"))
## returns FALSE because the "virginica" level of iris$species is missing
is_likert(iris$Species, c("setosa", "versicolor"))
## returns an error
is_likert(iris$Species, c(1, 2))
## returns no error as the numeric is coerced to a character.
is_likert(iris$Species, c("setosa", 2))
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