| cbc.get.col {colbycol} | R Documentation |
Function cbc.read.table reads a file, stores it column by column in disk file and creates a colbycol object.
Function cbc.get.col queries this object and returns a single column.
cbc.get.col(data, column)
data |
a colbycol object |
column |
a single number of column name indicating the column to be retrieved from disk |
column can be either an existing column name from the file (see colnames.colbycol) or a number indicating the correlative order of the column within data.
The data contained in the indicated column in the original file.
Carlos J. Gil Bellosta
~put references to the literature/web site here ~
cbc.data <- cbc.read.table( system.file("data", "cbc.test.data.txt", package = "colbycol"), sep = "\t" )
ncol( cbc.data )
colnames( cbc.data )
col.01 <- cbc.get.col( cbc.data, 1)
col.02 <- cbc.get.col( cbc.data, "col02" )