writewig: A function to save a list of chromosome-wise x/y data frames
into a WIG file format.
Description
Takes a list that contains an $x and $y data.frame for a number of
chromosomes and writes it out to a WIG BED style format.
Usage
writewig(dat, fname, feature, threshold = 5, zip = F)
Arguments
dat
Chromosome coordinate-value data. dat is a list,
each member of a list is a data frame with $x and $y columns
containing chromosome positions and associated values. The names of
the list elements correspond to the chromosomes.
fname
Filename to which the output should be written
feature
Data description to be incorporated into the WIG header
threshold
Optional threshold to be saved in the WIG file
zip
Wheter to invoke a zip program to compress the file