>>>>> "RossB" == Ross Boylan <[EMAIL PROTECTED]>
>>>>> on Thu, 30 Nov 2006 12:17:55 -0800 writes:
RossB> I want to print the coefficient estimates of a model
RossB> in a way as consistent with other output in R as
RossB> possible. stats provides the printCoefmat function
RossB> for doing this, but there is one problem. I have an
RossB> additional piece of textual information I want to put
RossB> on the line with the other info on each coefficient.
that's not a real problem, see below
RossB> The documentation for printCoefmat says the first
RossB> argument must be numeric, which seems to rule this out.
it does say that (it says "x: a numeric matrix like object"
which includes data frames with factors)
but you are right that it does preclude a column of "character".
RossB> I just realized I might be able to cheat by inserting
RossB> the text into the name of the variable (fortunately
RossB> there is just one item of text). I think that's in
RossB> the names of the matrix given as the first argument
RossB> to the function.
yes; it's the rownames();
i.e., you'd do something like
rownames(myx) <- paste(rownames(myx), format(mytext_var)))
which seems simple enough to me,
but it only works when the "text" is the first column
RossB> Are there any better solutions? Obviously I could
RossB> just copy the method and modify it, but that creates
RossB> duplicate code and loses the ability to track future
RossB> changes to printCoefmat.
As original author of printCoefmat(), I'm quite willing to
accept and incorporate a patch to the current function
definition (in https://svn.r-project.org/R/trunk/src/library/R/anova.R),
if it's well written.
As a matter of fact, I think already see how to generalize printCoefmat()
to work for the case of data frame with character columns
[I would not want a character matrix however; since that would mean
going numeric -> character -> numeric -> formatting (i.e character)
for the 'coefficients' themselves].
Can you send me a reproducible example?
or at least an *.Rda file of a save()d such data frame?
RossB> Thanks. Ross Boylan
You're welcome,
Martin Maechler, ETH Zurich
______________________________________________
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
