Skip to Main Content
R Programming for Bioinformatics
book

R Programming for Bioinformatics

by Robert Gentleman
July 2008
Intermediate to advanced content levelIntermediate to advanced
328 pages
10h 53m
English
Chapman and Hall/CRC
Content preview from R Programming for Bioinformatics
Data Technologies 259
> nullf = function(x, ...) NULL
> yeast2 = xmlTreeParse(Yeastfn,
handlers = list(sequence = nullf,
organism = nullf, primaryRef = nullf,
secondaryRef = nullf,
names = nullf), asTree=TRUE)
We can easily compare the size of the two documents and see that the
second is much smaller.
> object.size(yeastIntAct)
[1] 47253568
> object.size(yeast2)
[1] 11793648
If instead, it is desirable to obtain the entire tree so that it can later be ma-
nipulated and queried, it may be beneficial to set the argument
useInternalNodes to TRUE. This causes the document to be stored in an inter-
nal, to the XML package, format rather than to convert it into
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Computation in BioInformatics

Computation in BioInformatics

S. Balamurugan, Anand T. Krishnan, Dinesh Goyal, Balakumar Chandrasekaran, Boomi Pandi
R for Data Science Cookbook (n)

R for Data Science Cookbook (n)

Prabhanjan Narayanachar Tattar, Yu-Wei, Chiu (David Chiu)

Publisher Resources

ISBN: 9781420063677