noquote | R Documentation |
Print character strings without quotes.
noquote(obj, right = FALSE) ## S3 method for class 'noquote' print(x, quote = FALSE, right = FALSE, ...) ## S3 method for class 'noquote' c(..., recursive = FALSE)
obj |
any R object, typically a vector of
|
right |
optional |
x |
an object of class |
quote, ... |
further options passed to next methods, such as |
recursive |
for compatibility with the generic |
noquote
returns its argument as an object of class
"noquote"
. There is a method for c()
and subscript
method ("[.noquote"
) which ensures that the class is not lost
by subsetting. The print method (print.noquote
) prints
character strings without quotes ("...."
is printed as ....
).
If right
is specified in a call print(x, right=*)
, it
takes precedence over a possible right
setting of x
,
e.g., created by x <- noquote(*, right=TRUE)
.
These functions exist both as utilities and as an example of using (S3)
class
and object orientation.
Martin Maechler maechler@stat.math.ethz.ch
methods
, class
, print
.
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(stats::runif(20) > 0.8) chmat <- as.matrix(format(stackloss)) # a "typical" character matrix ## noquote(*, right=TRUE) so it prints exactly like a data frame chmat <- noquote(chmat, right = TRUE) chmat
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