RBIND: Append 'data.frame's by row, even when columns differ

In mrdwab/AMsnippets: Useful function "snippets"

Description

The default rbind function will produce an error if you attempt to use it on data.frames with differing numbers of columns. The RBIND function appends a list of data.frames together by row, filling missing columns with NA.

Usage

  RBIND(datalist, keep.rownames = TRUE)

Arguments

datalist	A list of data.frames which need to be appended together by row.
keep.rownames	Logical. Should the original rownames be retained? Defaults to TRUE.

Author(s)

Ananda Mahto

See Also

rbind and cbind for other base R functions to combine data.frames; rbind.fill for a function with almost identical functionality (does not preserve the rownames); CBIND.

Examples

## Make up some data
x <- data.frame(a = 1:2, b = 2:3, c = 3:4, d = 4:5,
             row.names = c("row_1", "another_row1"))
y <- data.frame(a = c(10, 20), b = c(20, 30), c = c(30, 40),
             row.names=c("row_2", "another_row2"))
z <- data.frame(a = c(11, 21), b = c(22, 32), d = c(33, 43),
             row.names = c("row_3", "another_row3"))
xx <- data.frame(a = 1:2, b = 3:4)
yy <- data.frame(a = 5:6, b = 7:8)
zz <- data.frame(a = 9:10, b = 11:12)
zz2 <- data.frame(a = 9:10, w = 11:12)
temp1 <- list(x, y, z)
temp2 <- list(xx, yy, zz)
temp3 <- list(xx, yy, zz2)
temp4 <- list(x, y, z, xx, yy, zz, zz2)

## Apply the function
RBIND(temp1)
RBIND(temp1, keep.rownames = FALSE)
RBIND(temp2)
RBIND(temp3)
RBIND(temp4)
RBIND(temp4, keep.rownames = FALSE)

mrdwab/AMsnippets documentation built on May 23, 2019, 7:15 a.m.