R: Examples for 'base::c'

### ** Examples

c(1,7:9)

[1] 1 7 8 9

c(1:5, 10.5, "next")

[1] "1"    "2"    "3"    "4"    "5"    "10.5" "next"

## uses with a single argument to drop attributes
x <- 1:4
names(x) <- letters[1:4]
x

a b c d 
1 2 3 4

c(x)          # has names

a b c d 
1 2 3 4

as.vector(x)  # no names

[1] 1 2 3 4

dim(x) <- c(2,2)
x

     [,1] [,2]
[1,]    1    3
[2,]    2    4

c(x)

[1] 1 2 3 4

as.vector(x)

[1] 1 2 3 4

## append to a list:
ll <- list(A = 1, c = "C")
## do *not* use
c(ll, d = 1:3) # which is == c(ll, as.list(c(d = 1:3)))

$A
[1] 1

$c
[1] "C"

$d1
[1] 1

$d2
[1] 2

$d3
[1] 3

## but rather
c(ll, d = list(1:3))  # c() combining two lists

$A
[1] 1

$c
[1] "C"

$d
[1] 1 2 3

c(list(A = c(B = 1)), recursive = TRUE)

A.B 
  1

c(options(), recursive = TRUE)

$add.smooth
[1] TRUE

$bitmapType
[1] "cairo"

$browser
[1] "/usr/bin/xdg-open"

$browserNLdisabled
[1] FALSE

$CBoundsCheck
[1] FALSE

$check.bounds
[1] FALSE

$citation.bibtex.max
[1] 1

$continue
[1] "+ "

$contrasts.unordered
[1] "contr.treatment"

$contrasts.ordered
[1] "contr.poly"

$defaultPackages1
[1] "datasets"

$defaultPackages2
[1] "utils"

$defaultPackages3
[1] "grDevices"

$defaultPackages4
[1] "graphics"

$defaultPackages5
[1] "stats"

$defaultPackages6
[1] "methods"

$demo.ask
[1] "default"

$deparse.cutoff
[1] 60

$device
function (width = 7, height = 7, ...) 
{
    grDevices::pdf(NULL, width, height, ...)
}
<bytecode: 0x55ccff41f008>
<environment: namespace:knitr>

$device.ask.default
[1] FALSE

$digits
[1] 7

$dvipscmd
[1] "dvips"

$echo
[1] TRUE

$editor
[1] "vi"

$encoding
[1] "native.enc"

$example.ask
[1] "default"

$expressions
[1] 5000

$help.search.types1
[1] "vignette"

$help.search.types2
[1] "demo"

$help.search.types3
[1] "help"

$help.try.all.packages
[1] FALSE

$HTTPUserAgent
[1] "R (4.2.3 x86_64-pc-linux-gnu x86_64 linux-gnu) - RCloud (http://github.com/att/rcloud)"

$httr_oauth_cache
[1] NA

$httr_oob_default
[1] FALSE

$internet.info
[1] 2

$keep.parse.data
[1] TRUE

$keep.parse.data.pkgs
[1] FALSE

$keep.source
[1] TRUE

$keep.source.pkgs
[1] FALSE

$knitr.in.progress
[1] TRUE

$locatorBell
[1] TRUE

$mailer
[1] "mailto"

$matprod
[1] "default"

$max.print
[1] 99999

$menu.graphics
[1] TRUE

$na.action
[1] "na.omit"

$nwarnings
[1] 50

$OutDec
[1] "."

$pager
[1] "/usr/local/R/4.2/bin/pager"

$papersize
[1] "a4"

$PCRE_limit_recursion
[1] NA

$PCRE_study
[1] FALSE

$PCRE_use_JIT
[1] TRUE

$pdfviewer
[1] "/usr/bin/xdg-open"

$pkgType
[1] "source"

$printcmd
[1] ""

$prompt
[1] "> "

$repos.CRAN
[1] "@CRAN@"

$rl_word_breaks
[1] " \t\n\"\\'`><=%;,|&{()}"

$scipen
[1] 0

$show.coef.Pvalues
[1] TRUE

$show.error.messages
[1] TRUE

$show.signif.stars
[1] TRUE

$str.strict.width
[1] "no"

$str.digits.d
[1] 3

$str.vec.len
[1] 4

$str.list.len
[1] 99

$str.drop.deparse.attr
[1] TRUE

$str.formatNum
function (x, ...) 
format(x, trim = TRUE, drop0trailing = TRUE, ...)
<environment: 0x55ccfc5fed48>

$str.dendrogram.last
[1] "`"

$stringsAsFactors
[1] FALSE

$texi2dvi
[1] "texi2dvi"

$timeout
[1] 60

$try.outFile
[1] 4

$ts.eps
[1] 1e-05

$ts.S.compat
[1] FALSE

$unzip
[1] "/usr/bin/unzip"

$useFancyQuotes
[1] FALSE

$verbose
[1] FALSE

$warn
[1] 0

$warning.length
[1] 1000

$width
[1] 80

c(list(A = c(B = 1, C = 2), B = c(E = 7)), recursive = TRUE)

A.B A.C B.E 
  1   2   7

Examples for 'base::c'

Combine Values into a Vector or List