easyr (version 0.5-11)

bindf: Bind Rows with Factors

Description

Matches factor levels before binding rows. If factors have 0 levels it will change the column to character to avoid errors. Author: Bryce Chamberlain.

Usage

bindf(..., sort.levels = TRUE)

Value

Binded data, with any factors modified to contain all levels in the binded data.

Arguments

...

data to be binded

sort.levels

Sort the factor levels after combining them.

Examples

# create data where factors have different levels.
df1 = data.frame(
  factor1 = c( 'a', 'b', 'c' ),
  factor2 = c( 'high', 'medium', 'low' ),
  factor.join = c( '0349038u093843', '304359867893753', '3409783509735' ),
  numeric = c( 1, 2, 3 ),
  logical = c( TRUE, TRUE, TRUE )
)#' 
df2 = data.frame(
  factor1 = c( 'd', 'e', 'f' ),
  factor2 = c( 'low', 'medium', 'high' ),
  factor.join = c( '32532532536', '304359867893753', '32534745876' ),
  numeric = c( 4, 5, 6 ),
  logical = c( FALSE, FALSE, FALSE )
)

# bindf preserves factors but combines levels.
# factor-friendly functions default to ordered levels.
str( df1 )
str( bindf( df1, df2 ) )