[Rd] could we add an argument to suppress printing of levels for print.factor()?

[A.J. Rossini]

>>>>> "a" == A J Rossini <rossini@blindglobe.net> writes:

>>>>> "martin" == Martin Maechler <maechler@stat.math.ethz.ch> writes:
    martin> Hence we are waiting for a new patch  (:-)

    a> In order to do that, I need to know what abbreviate.arg (the
    a> "un-documented" argument) does.  Anyone know?    Other thant that,
    a> it (the patch) is almost ready.

    a> (yes, I'm silly -- I'd rather not fire up S-PLUS 6 when doing reverse
    a> engineering...). 

And here's the hack; note that I've left my "argument" in for
backwards compatibility.

"print.factor" <- 
  function (x, quote = FALSE, max.levels=5, print.levels = {if
(max.levels==0) FALSE else TRUE}, ...)
{ 
  if (length(x) <= 0) 
    cat("factor(0)\n") 
  else print(as.character(x), quote = quote, ...) 
  if (print.levels) {
    cat("Levels: ", paste(levels(x)[1:max.levels], collapse = " "),
"\n")
  }
  invisible(x) 
} 

It's ugly but seems to work.

best,
-tony

-- 
A.J. Rossini				Rsrch. Asst. Prof. of Biostatistics
U. of Washington Biostatistics		rossini@u.washington.edu	
FHCRC/SCHARP/HIV Vaccine Trials Net	rossini@scharp.org
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