Ambil urutan argumen vektor, matriks, atau bingkai data dan gabungkan masing-masing berdasarkan kolom atau baris. Ini adalah fungsi generik dengan metode untuk kelas R lainnya.
cbind(…, deparse.level = 1)
rbind(…, deparse.level = 1)
# S3 method for data.frame
rbind(…, deparse.level = 1, make.row.names = TRUE,
stringsAsFactors = default.stringsAsFactors(), factor.exclude = NA)| Parameter | Deskripsi |
|---|---|
… |
(generalized) vectors or matrices. These can be given as named arguments. Other R objects may be coerced as appropriate, or S4 methods may be used: see sections ‘Details’ and ‘Value’. (For the "data.frame" method of cbind these can be further arguments to data.frame such as stringsAsFactors.) |
deparse.level |
integer controlling the construction of labels in the case of non-matrix-like arguments (for the default method): deparse.level = 0 constructs no labels; the default, deparse.level = 1 or 2 constructs labels from the argument names, see the ‘Value’ section below. |
make.row.names |
(only for data frame method:) logical indicating if unique and valid row.names should be constructed from the arguments. |
stringsAsFactors |
logical, passed to as.data.frame; only has an effect when the … arguments contain a (non-data.frame) character. |
factor.exclude |
if the data frames contain factors, TRUE ensures that NA levels of factors are kept, see 17562 and the ‘Data frame methods’. In R versions up to 3.6.x, factor.exclude = NA has been implicitly hardcoded (R <= 3.6.0) or the default (R = 3.6.x, x >= 1). |
# NOT RUN {
m <- cbind(1, 1:7) # the '1' (= shorter vector) is recycled
m
m <- cbind(m, 8:14)[, c(1, 3, 2)] # insert a column
m
cbind(1:7, diag(3)) # vector is subset -> warning
cbind(0, rbind(1, 1:3))
cbind(I = 0, X = rbind(a = 1, b = 1:3)) # use some names
xx <- data.frame(I = rep(0,2))
cbind(xx, X = rbind(a = 1, b = 1:3)) # named differently
cbind(0, matrix(1, nrow = 0, ncol = 4)) #> Warning (making sense)
dim(cbind(0, matrix(1, nrow = 2, ncol = 0))) #-> 2 x 1
## deparse.level
dd <- 10
rbind(1:4, c = 2, "a++" = 10, dd, deparse.level = 0) # middle 2 rownames
rbind(1:4, c = 2, "a++" = 10, dd, deparse.level = 1) # 3 rownames (default)
rbind(1:4, c = 2, "a++" = 10, dd, deparse.level = 2) # 4 rownames
## cheap row names:
b0 <- gl(3,4, labels=letters[1:3])
bf <- setNames(b0, paste0("o", seq_along(b0)))
df <- data.frame(a = 1, B = b0, f = gl(4,3))
df. <- data.frame(a = 1, B = bf, f = gl(4,3))
new <- data.frame(a = 8, B ="B", f = "1")
(df1 <- rbind(df , new))
(df.1 <- rbind(df., new))
stopifnot(identical(df1, rbind(df, new, make.row.names=FALSE)),
identical(df1, rbind(df., new, make.row.names=FALSE)))
# }