R.utils: dataFrame – R documentation

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dataFrame

Allocates a data frame with given column classes

Allocates a data frame with given column classes.

## Default S3 method:
dataFrame(colClasses, nrow=1, ...)

`colClasses`	A `character` `vector` of column classes, cf. `read.table`.
`nrow`	An `integer` specifying the number of rows of the allocated data frame.
`...`	Not used.

Returns an NxK data.frame where N equals nrow and K equals length(colClasses).

df <- dataFrame(colClasses=c(a="integer", b="double"), nrow=10)
  df[,1] <- sample(1:nrow(df))
  df[,2] <- rnorm(nrow(df))
  print(df)

Various Programming Utilities

v2.10.1

LGPL (>= 2.1)

Authors

Henrik Bengtsson [aut, cre, cph]

Initial release