"grid", "legend", "lines", "matlines", "matplot", "par",
importFrom("stats", "aggregate", "approx", "approxfun", "cov",
"fitted", "lm", "median", "na.omit", "predict", "quantile",

importFrom("graphics", "abline", "axis", "image", "layout", "lines",
importFrom("stats", "aov", "as.formula", "cov", "fft", "lm", "lm.fit",

importFrom("stats", "dbinom", "dhyper", "fisher.test", "kmeans",

importFrom("graphics", "legend", "par", "plot", "points", "text")

importFrom("stats", "na.omit", "quantile", "sd", "var", "cov", "pchisq", "lm",
"as.formula", "median", "pnorm", "predict", "qnorm", "reshape",
importFrom("ggplot2", "ggplot_build", "geom_boxplot", "geom_density", "geom_tile",
"geom_hline", "geom_line", "geom_ribbon", "geom_vline", "geom_text",
"scale_colour_manual", "aes", "annotate", "ggtitle", "geom_rect",

# Namespace for ff (currently exporting (almost) everything in order to facilitate debugging)
# -- as.ff.R - coercion from ram to ff and vice versa (cache-in/cache-out of complete ff objects) --
# -- bigsample.R - sampling from big objects --
# -- CFUN.R - some collapse functions useful with ffapply and friends - xx TODO yet incomplete --
# -- ff.R - creating and manipulating ff objects: the core of package ff --
# xx todo print.ff_array via arrprint and print.arrprint
# -- ffapply.R - applying expressions (not functions) to large ff (or ram) objects (R.ff foundation) --
# -- ffreturn.R - basic infrastructure for checking/creating FF_RETURN values (R.ff foundation) --
# -- getpagesize.R - utility for getting default pagesize --
# -- regtest.R --  # xx TODO just draft fragments yet
#,regtest.ff 	   # xx TODO not up to date
# -- hi.R - class for Hybrid Index Preprocessing (HIP) --
# -- vmode.R - metadata and functions for virtual storage modes --
# -- vt.R - virtual and cloned matrix transpose --
# -- x_ff_symm.R - ff extension (dual licensing, no GPL): symmetric  ff matrices with free and fixed diagonal --
#,diag.default   # turned R function to default method
#,"diag<-.default" # turned R function to default method
# -- x_symm.R    - ff extension (dual licensing, no GPL): symmetric ram matrices with free and fixed diagonal --
# -- compatibility.R - methods that help to write similar code for ram and ff objects --
# -- vt.R - cloned and virtual matrix transpose --