Quantcast
Channel: Search Results for “pca”– R-bloggers
Viewing all articles
Browse latest Browse all 209

Bedtools tutorial from 2013 CSHL course

$
0
0

(This article was first published on Getting Genetics Done, and kindly contributed to R-bloggers)
A couple of months ago I posted about how to visualize exome coverage with bedtools and R. But if you're looking to get a basic handle on genome arithmetic, take a look at Aaron Quinlan's bedtools tutorials from the 2013 CSHL course. The tutorial uses data from the Maurano et al exploration of DnaseI hypersensitivity sites in hundreds of primary tissue types (Science 337:1190-1195).

The tutorial provides examples with pictures and code to do things like:

Intersections to find features that overlap (or do NOT overlap):



Merging features like {ChIP,MEDIP,DNAse,*}-seq peaks:



Examining coverage:



Advanced usage using the Jaccard statistic to measure similarity of all 20 tissue types to all other 20 20 tissues, and visualizing this with principal components analysis and ggplot2 in R:



See the full bedtools documentation for more.

2013 CSHL bedtools tutorial: http://quinlanlab.org/tutorials/cshl2013/bedtools.html

To leave a comment for the author, please follow the link and comment on his blog: Getting Genetics Done.

R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web Scraping) statistics (regression, PCA, time series, trading) and more...

Viewing all articles
Browse latest Browse all 209

Trending Articles