re-roxygenize

Author: yihui

NAMESPACE

@@ -48,6 +48,7 @@ export(pat_rnw)
 export(pat_rst)
 export(pat_tex)
 export(purl)
+export(rand_seed)
 export(read_chunk)
 export(render_html)
 export(render_jekyll)

man/dep_auto.Rd

@@ -33,6 +33,9 @@ build_dep(path)
   need to adjust the \code{path} argument here to make sure
   this function can find the cache files \file{__objects}
   and \file{__globals}.
+
+  \code{build_dep} is a deprecated alias for
+  \code{dep_auto} and may be removed in the future.
 }
 \references{
   \url{http://yihui.name/knitr/demo/cache/}

man/rand_seed.Rd

@@ -0,0 +1,27 @@
+\docType{data}
+\name{rand_seed}
+\alias{rand_seed}
+\title{An unevaluated expression to return .Random.seed if exists}
+\format{language {  if (exists(".Random.seed", envir = globalenv())) ; get(".Random.seed", envir = globalenv()) }}
+\usage{
+rand_seed
+}
+\description{
+  This expression returns \code{.Random.seed} when
+  \code{eval(rand_seed)} and \code{NULL} otherwise.
+}
+\details{
+  It is designed to work with
+  \code{opts_knit$set(cache.extra = rand_seed)} for
+  reproducibility of chunks that involve with random number
+  generation. See references.
+}
+\examples{
+eval(rand_seed)
+rnorm(1)  # .Random.seed is created (or modified)
+eval(rand_seed)
+}
+\references{
+  \url{http://yihui.name/knitr/demo/cache/}
+}
+\keyword{datasets}