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## ----'preamble', include=FALSE, warning=FALSE, message=FALSE----
library(knitr)
# set the knitr options ... for everyone!
# if you unset this, then vignette build bonks. oh, joy.
#opts_knit$set(progress=TRUE)
opts_knit$set(eval.after='fig.cap')
# for a package vignette, you do want to echo.
# opts_chunk$set(echo=FALSE,warning=FALSE,message=FALSE)
opts_chunk$set(warning=FALSE,message=FALSE)
#opts_chunk$set(results="asis")
opts_chunk$set(cache=TRUE,cache.path="cache/fromo_")
#opts_chunk$set(fig.path="figure/",dev=c("pdf","cairo_ps"))
opts_chunk$set(fig.path="figure/fromo_",dev=c("pdf"))
opts_chunk$set(fig.width=5,fig.height=4,dpi=64)
# doing this means that png files are made of figures;
# the savings is small, and it looks like shit:
#opts_chunk$set(fig.path="figure/",dev=c("png","pdf","cairo_ps"))
#opts_chunk$set(fig.width=4,fig.height=4)
# for figures? this is sweave-specific?
#opts_knit$set(eps=TRUE)
# this would be for figures:
#opts_chunk$set(out.width='.8\\textwidth')
# for text wrapping:
options(width=64,digits=2)
opts_chunk$set(size="small")
opts_chunk$set(tidy=TRUE,tidy.opts=list(width.cutoff=50,keep.blank.line=TRUE))
compile.time <- Sys.time()
# from the environment
# only recompute if FORCE_RECOMPUTE=True w/out case match.
FORCE_RECOMPUTE <-
(toupper(Sys.getenv('FORCE_RECOMPUTE',unset='False')) == "TRUE")
# compiler flags!
# not used yet
LONG.FORM <- FALSE
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