mergeToX: merge x and y, leaving x intact

In Rundmus/Useful2me-R_package: R function collection useful to me

Description

merge two data frames, x and y, like merge, but x is left intact

Usage

mergeToX(
  x,
  y,
  by = intersect(names(x), names(y)),
  by.x = by,
  by.y = by,
  suffix.y = ".y"
)

Arguments

x, y	data frames to be merged, in which 'x' will not be changed at all
by	names of the columns in which the values link two data frames. When row names is used to match two tables, the function rownames can be given here.
by.x, by.y	linking column names in 'x' and 'y' if the names are different
suffix.y	the suffix for the columns in 'y' that have same name as 'x' excluding 'by.y'

Value

A merged data frame

Author(s)

Mun-Gwan Hong, [e-mail]

See Also

merge

Examples

tg1 <- data.frame("id"= c("s1", "s2", "s3", "s5"), "height"= c(169, 187, 175, 162))
tg2 <- data.frame("id"= c("s1", "s2", "s4", "s5"), "weight"= c(76, 89, 60, 68))
mergeToX(tg1, tg2)
rownames(tg1)
mergeToX(tg1, tg2, by= rownames)

Rundmus/Useful2me-R_package documentation built on Nov. 13, 2020, 4:16 p.m.