meltDownK: meltDownK: Condensing DNA k-mer count data to lower k-value...
In seqTools: Analysis of nucleotide, sequence and quality content on fastq files.

Description Usage Arguments Details Value Author(s) References Examples

Returns a copy of given object where DNA k-mer counts and first DNA k-mer count table are reduced in size.

1	meltDownK(object,newK)

`object`	`Fastqq`: Object from wich data is copied.
`newK`	`integer`: New value for k. Must be >=1 and <= old k.

The function sums all count values which belong the the new motif up. The new motif is the new-k sized prefix of the given k-mer motif.

S4 Object of class 'Fastqq'.

Wolfgang Kaisers

Cock PJA, Fields CJ, Goto N, Heuer ML, Rice PM The sanger fastq file format for sequences with quality scores and the Solexa/Illumina fastq variants. Nucleic Acids Research 2010 Vol.38 No.6 1767-1771

basedir<-system.file("extdata",package="seqTools")
setwd(basedir)
fq<-fastqq(c("g4_l101_n100.fq.gz","g5_l101_n100.fq.gz"),k=4,probeLabel=c("g4","g5"))
fqm<-meltDownK(fq,2)