To install this package, start R and enter:

## try http if https is not available

In most cases, you don't need to download the package archive at all.



Optional Type Specification Prototype

Bioconductor version: Release (3.1)

A prototype for a mechanism for specifying the types of parameters and the return value for an R function. This is meta-information that can be used to generate stubs for servers and various interfaces to these functions. Additionally, the arguments in a call to a typed function can be validated using the type specifications. We allow types to be specified as either i) by class name using either inheritance - is(x, className), or strict instance of - class(x) %in% className, or ii) a dynamic test given as an R expression which is evaluated at run-time. More precise information and interesting tests can be done via ii), but it is harder to use this information as meta-data as it requires more effort to interpret it and it is of course run-time information. It is typically more meaningful.

Author: Duncan Temple Lang Robert Gentleman (<rgentlem at>)

Maintainer: Duncan Temple Lang <duncan at>

Citation (from within R, enter citation("TypeInfo")):


To install this package, start R and enter:

## try http if https is not available


To view documentation for the version of this package installed in your system, start R and enter:



PDF R Script TypeInfo R News
PDF   Reference Manual


biocViews Infrastructure, Software
Version 1.34.0
In Bioconductor since BioC 1.9 (R-2.4) (9 years)
License BSD
Depends methods
Suggests Biobase
Depends On Me RWebServices
Imports Me
Suggests Me
Build Report  

Package Archives

Follow Installation instructions to use this package in your R session.

Package Source TypeInfo_1.34.0.tar.gz
Windows Binary
Mac OS X 10.6 (Snow Leopard) TypeInfo_1.34.0.tgz
Mac OS X 10.9 (Mavericks) TypeInfo_1.34.0.tgz
Subversion source (username/password: readonly)
Git source
Package Short Url
Package Downloads Report Download Stats

Documentation »


R / CRAN packages and documentation

Support »

Please read the posting guide. Post questions about Bioconductor to one of the following locations:

Fred Hutchinson Cancer Research Center