Cbind: Combine objects by columns matching the rows on row names

In mbojan/mbtools: Chaotic Collection of Functions and Datasets Possibly Useful Also To Others

Combine objects by columns matching the rows on row names

Description

Take a sequence of matrix-like objects and combine the column-wise matching the rows on the common row names.

Usage

Cbind(...)

Arguments

...	matrices, vectors or data.frames that are to be combined. These are converted to data frames before merging.

Details

All the supplied objects have to have row names defined, i.e. calling rownames on the should return character vector.

All the objects are converted to data frames prior combining.

The result will have the number of columns equal to the sum of the numbers of columns in the supplied objects. The number of rows will be equal to the number of unique row names in all the arguments.

Value

Data frame consisting of merged objects.

See Also

cbind, rownames

Examples

# two matrices
m1 <- m2 <- matrix(1:4, 2, 2)
colnames(m1) <- colnames(m2) <- 1:2
rownames(m1) <- c("a", "b")
rownames(m2) <- c("b", "c")
Cbind(m1, m2)

# matrices and a data frame
l <- list(  m1 = m1, 
            m2 = m2,
            d1 = data.frame( x=1:4, y=2:5,
              row.names=letters[1:4]) 
  )
do.call("Cbind", l)

mbojan/mbtools documentation built on Oct. 16, 2023, 8:18 p.m.