longdf2matrix: Convert a long-format data frame into matrix
In ribiosUtils: Utilities from and Interface to the Bioinfo-C (BIOS) Library

Description Usage Arguments Value Author(s) See Also Examples

Input data.frame must contain at least three columns: one contains row names (specified by row.col), one contains column names (column.col), and one contains values in matrix cells (value.col). The output is a 2D matrix.

longdf2matrix(
  df,
  row.col = 1L,
  column.col = 2L,
  value.col = 3L,
  missingValue = NULL
)

`df`	Long-format data frame
`row.col`	Character or integer, which column of the input data.frame contains row names?
`column.col`	Character or integer, which column contains column names?
`value.col`	Character or integer, which column contains matrix values?
`missingValue`	Values assigned in case of missing data

A 2D matrix equivalent to the long-format data frame

Jitao David Zhang <jitao_david.zhang@roche.com>

matrix2longdf

test.df <- data.frame(H=c("HSV", "BVB", "HSV", "BVB"),
A=c("FCB", "S04", "S04", "FCB"),
score=c(3, 1, 1, 0))
longdf2matrix(test.df, row.col=1L, column.col=2L, value.col=3L)

data(Indometh)
longdf2matrix(Indometh, row.col="time", column.col="Subject",value.col="conc")
longdf2matrix(Indometh, row.col="Subject", column.col="time", value.col="conc")