as_string: Vector to String Conversion

In exams.forge: Support for Compiling Examination Tasks using the 'exams' Package

Vector to String Conversion

Description

Converts a character vector into a single string.

Usage

as_string(txt, collapse = ", ", last = ", and ")

as_sum(txt)

as_obs(txt, name = "x", sorted = FALSE, ...)

as_fraction(val, latex = FALSE, sorted = FALSE, ...)

lobs(txt, name = "x", sorted = FALSE, ...)

lstring(txt, collapse = ", ", last = ", and ")

lfrac(val, latex = FALSE, sorted = FALSE, ...)

Arguments

txt	vector: (character) vector to merge
collapse	character: glues text between elements (default: ", ")
last	character: glues text between the two last elements (default: ", and ")
name	character: observation name (default: "x")
sorted	logical: sorted or not sorted observations (default: FALSE)
...	further parameters (given from as_obs to as_string)
val	numeric: values to convert into fractions
latex	logical use of LaTeX \frac{.}{.} or not (default: FALSE)

Value

a string

Examples

x <- runif(5)
y <- c(TRUE, FALSE, NA) 
as_string(x)
as_string(y)
# toString
as_string(as.character(x))
as_string(as.character(y))
#
as_obs(x)
as_obs(sort(x), sorted=TRUE)
#
x <- round(runif(5), 2)
as_fraction(x)
as_fraction(x, TRUE)
#
y <- round(runif(5), 2)
as_sum(x)

exams.forge documentation built on Sept. 11, 2024, 5:32 p.m.