# NOT RUN {
iris.ffdf <- as.ffdf(iris)
td <- tempfile()
# save the ffdf into the supplied directory
save.ffdf(iris.ffdf, dir=td)
# what in the directory?
dir(td)
#remove the ffdf from memory
rm("iris.ffdf")
# and reload the stored ffdf
load.ffdf(dir=td)
tf <- paste(tempfile(), ".zip", sep="")
packed <- pack.ffdf(file=tf, iris.ffdf)
#remove the ffdf from memory
rm("iris.ffdf")
# restore the ffdf from the packed ffdf
unpack.ffdf(tf)
# }
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