Last data update: 2014.03.03

R: Creation of an UCSC's DNase clusters track
DNAse_UCSCR Documentation

Creation of an UCSC's DNase clusters track

Description

Creation of DNase cluster track from a connection to UCSC genome browser in using the GViz bioconductor package

Usage

DNAse_UCSC(gen, chr, start, end, mySession, track.name = "DNase Clusters", table.name = NULL)

Arguments

gen

the name of the genome. Data is not currently available for GRCh38 (hg38).

chr

the chromosome of interest

start

the first position in the region of interest (the smallest value)

end

the last position in the region of interest (the largest value)

mySession

the object session from the function browserSession of rtracklayer

track.name

the name of the track DNAse_UCSC. "DNase Clusters"(default)

table.name

the name of the table from the track

Value

An AnnotationTrack object of Gviz

Author(s)

Tiphaine Martin

References

http://bioconductor.org/packages/release/bioc/html/Gviz.html

http://genome-euro.ucsc.edu/cgi-bin/hgTrackUi?hgsid=202839739_2hYQ1BAOuBMAR620GjrtdrFAy6dn&c=chr6&g=wgEncodeDNAseSuper

Examples

library("Gviz")
library("rtracklayer")

gen <- "hg19"
chr <- "chr7"
start <- 38290160
end <- 38303219
if(interactive()){
  BROWSER.SESSION="UCSC"
  mySession <- browserSession(BROWSER.SESSION)
  genome(mySession) <- gen
  track.name="Broad ChromHMM"
  tablestrack<-tableNames(ucscTableQuery(mySession, track=track.name))
  table.name<-tablestrack[1]
  dnasetrack<-DNAse_UCSC(gen,chr,start,end,mySession)
  plotTracks(dnasetrack, from = start, to =end)
}else {
    data(dnasetrack)
   plotTracks(dnasetrack, from = start, to =end)
}

Results


R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> library(coMET)
Loading required package: grid
Loading required package: biomaRt
Loading required package: Gviz
Loading required package: S4Vectors
Loading required package: stats4
Loading required package: BiocGenerics
Loading required package: parallel

Attaching package: 'BiocGenerics'

The following objects are masked from 'package:parallel':

    clusterApply, clusterApplyLB, clusterCall, clusterEvalQ,
    clusterExport, clusterMap, parApply, parCapply, parLapply,
    parLapplyLB, parRapply, parSapply, parSapplyLB

The following objects are masked from 'package:stats':

    IQR, mad, xtabs

The following objects are masked from 'package:base':

    Filter, Find, Map, Position, Reduce, anyDuplicated, append,
    as.data.frame, cbind, colnames, do.call, duplicated, eval, evalq,
    get, grep, grepl, intersect, is.unsorted, lapply, lengths, mapply,
    match, mget, order, paste, pmax, pmax.int, pmin, pmin.int, rank,
    rbind, rownames, sapply, setdiff, sort, table, tapply, union,
    unique, unsplit


Attaching package: 'S4Vectors'

The following objects are masked from 'package:base':

    colMeans, colSums, expand.grid, rowMeans, rowSums

Loading required package: IRanges
Loading required package: GenomicRanges
Loading required package: GenomeInfoDb
Loading required package: psych

Attaching package: 'psych'

The following object is masked from 'package:IRanges':

    reflect

Warning message:
replacing previous import 'ggplot2::Position' by 'BiocGenerics::Position' when loading 'ggbio' 
> png(filename="/home/ddbj/snapshot/RGM3/R_BC/result/coMET/DNAse_UCSC.Rd_%03d_medium.png", width=480, height=480)
> ### Name: DNAse_UCSC
> ### Title: Creation of an UCSC's DNase clusters track
> ### Aliases: DNAse_UCSC
> ### Keywords: hplot
> 
> ### ** Examples
> 
> library("Gviz")
> library("rtracklayer")
> 
> gen <- "hg19"
> chr <- "chr7"
> start <- 38290160
> end <- 38303219
> #if(interactive()){
>   BROWSER.SESSION="UCSC"
>   mySession <- browserSession(BROWSER.SESSION)
>   genome(mySession) <- gen
Error in `genome<-`(`*tmp*`, value = "hg19") : 
  Failed to set session genome to 'hg19'
Calls: genome<- -> genome<-
Execution halted