chromosomesPosition {CNAnorm}

R Documentation

Accessors methods for Function ratio in Package ‘CNAnorm’

Description

chrs returns/set the name of chromosomes/contigs

arms retruns the name of the chromosome and arm. A data frame containing ideogram information has to be provided. See ?hg19_hs_ideogr for an example

pos returns/set the position of starting window. Be careful! If you need to change data, it is better to change the input data and start over.

Usage

chrs(object)
## S4 method for signature 'CNAnorm'
pos(object, show = "start")
## S4 method for signature 'CNAnorm'
arms(object, banding_df)

Arguments

object	An object of Class "CNAnorm"
show	The position to show: 'start', 'end'
banding_df	A data frame with infromation about ideogram

Value

chrs and arms return a character vector, pos returns a numeric vector

Author(s)

Stefano Berri <s.berri@leeds.ac.uk>

See Also

gcNorm, CNAnorm-class, hg19_hs_ideogr

Examples

data(LS041)
data(hg19_hs_ideogr)
CN <- dataFrame2object(LS041)
dataFrameNames <- as.character(LS041$Chr)
objectNames <- chrs(CN)
armNames <- arms(CN, hg19_hs_ideogr)
# check the names are, indeed, the same
all(dataFrameNames == objectNames)
# make shorter names, drop the first three letters ('chr')
shortNames <- substr(chrs(CN),4,nchar(chrs(CN)))
chrs(CN) <- shortNames


# retrieve all new names
unique(chrs(CN))
unique(armNames)

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