Friedrich Leisch
Sweave and Beyond: Computations on Text Documents
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In this presentation we discuss possible future directions for dynamic
documents in R. The current implmentation of Sweave allows easy
generation of dynamic reports using LaTeX and R, tools like the
vignette browser vExplorer from the Bioconductor project provide a
simple mechanism for user interaction with such documents. The next
generation of Sweave has a full S4 class representation for dynamic
documents, allowing much more powerfull and flexible computations on
the documents. Files need not be saved in noweb format, an alternative
read function handles XML files using a validating parser. This allows
for document exchange with other authoring and text processing
environments.  Code chunks will have a dependency structure
corresponding to a directed graph, allowing for conditional processing
and reuse of previously stored intermediate results.