[BioC] rtracklayer 'track' method, a viewLimits parameter?
stvjc at channing.harvard.edu
Thu Oct 28 22:36:28 CEST 2010
On Thu, Oct 28, 2010 at 4:21 PM, Paul Shannon
<pshannon at systemsbiology.org> wrote:
> The general question is: how do I navigate the help system, with S4 objects and methods, so I can figure this stuff out for myself?
> With R functions, I can type
> args (track)
> or simply
> and see, respectively, the parameters and the contents of the body of the function.
> But with generics, args (track) gets me
> function (object, ...)
will get a view of the source for the method you are interested in, and
will get them all -- can be a long dump depending on how many signatures are
> args (track (object='UCSCSession'))
> Better yet -- is there a 'R help for S4 classes, objects and methods' tutorial somewhere?
I think it is pretty well-recognized that the many possible ways of
documenting R classes
and methods make resource discovery and use somewhat challenging.
returns useful information on my installation
in the late 1990s i wrote a javadoc-like class/method crawler for
Splus, when S4 started
to be introduced through the green book. an example of the output is at
i have often wondered whether such a thing should be dusted off for
use with R. there
are probably relevant developments in the roxygen area and
elsewhere... but no magic
bullet, i suspect -- the real challenge is to keep the doc current at
a fine-grained level with
evolving code structures ... not easy with such limited resources
> - Paul
> Bioconductor mailing list
> Bioconductor at stat.math.ethz.ch
> Search the archives: http://news.gmane.org/gmane.science.biology.informatics.conductor
More information about the Bioconductor