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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>

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Version 1.34.0
In Bioconductor since BioC 1.9 (R-2.4) (8.5 years)
License BSD
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