zzz.R
.hasRSPerl <- FALSE
.getMarsData <- function() {
if(file.exists("mars.csv"))
eval.parent(quote(mars <- read.csv("mars.csv", skip = 5, as.is = TRUE)))
else if(file.exists("Examples/mars.csv"))
eval.parent(quote(mars <- read.csv("Examples/mars.csv", skip = 5, as.is = TRUE)))
else if(file.exists("Examples/mars.Rdata"))
eval.parent(quote(load("Examples/mars.Rdata")))
else
stop("To run this example, you must download or construct the file \"mars.csv\"; see page 176 in the book")
}
.onLoad <- function(libname, pkgname) {
## .hasRSPerl <<- !inherits(tryCatch(loadNamespace("RSPerl"), error = function(e)e), "error")
## if(.hasRSPerl) {
## perlFiles <- readLines(system.file("Perl/perlFiles.txt", package = "SoDA"))
## for(file in perlFiles) {
## ex <- tryCatch(RSPerl::.PerlFile(system.file("Perl", file, package = "SoDA")), error = function(e)e)
## if(inherits(ex, "error"))
## warning("error in running Perl file ", file, "; some Perl subroutines may be missing")
## }
## }
}