noquote {base}R Documentation

Class for ``no quote'' Printing of Strings

Description

These functions exist both as utilities and as an example of using class and object orientation.

Usage

noquote(obj)
print.noquote(obj, ...)
obj[j]

Arguments

obj any R object; typically a vector of character strings.
... further options for print.

Value

noquote returns its argument as an object of class "noquote". The function "[.noquote" ensures that the class is not lost by subsetting.

For (default) printing, print.noquote will be used which prints characters without quotes ("...").

Author(s)

Martin Maechler maechler@stat.math.ethz.ch

See Also

methods,class,print.

Examples

letters
nql <- noquote(letters)
nql
nql[1:4] <- "oh"
nql[1:12]

cmp.logical <- function(log.v)
{
  ## Purpose: compact printing of logicals
  log.v <- as.logical(log.v)
  noquote(if(length(log.v)==0)"()" else c(".","|")[1+log.v])
}
cmp.logical(runif(20) > 0.8)
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