Hi,
The man page for base::unique.matrix() and base::unique.array() says
that MARGIN is expected to be a single integer. OTOH the code in charge
of checking the user supplied MARGIN is:
if (length(MARGIN) > ndim || any(MARGIN > ndim))
stop(gettextf("MARGIN = %d is invalid for dim = %d",
MARGIN, dx), domain = NA)
which doesn't really make sense.
As a consequence the user gets an obscure error message when specifying
a MARGIN that satisfies the above check but is in fact invalid:
> unique(matrix(1:10, ncol=2), MARGIN=1:2)
Error in args[[MARGIN]] <- !duplicated.default(temp, fromLast =
fromLast, :
object of type 'symbol' is not subsettable
Also the code used by the above check to generate the error message
is broken:
> unique(matrix(1:10, ncol=2), MARGIN=1:3)
Error in sprintf(gettext(fmt, domain = domain), ...) :
arguments cannot be recycled to the same length
> unique(matrix(1:10, ncol=2), MARGIN=3)
Error in unique.matrix(matrix(1:10, ncol = 2), MARGIN = 3) :
c("MARGIN = 3 is invalid for dim = 5", "MARGIN = 3 is invalid for
dim = 2")
Thanks,
H.
--
Hervé Pagès
Program in Computational Biology
Division of Public Health Sciences
Fred Hutchinson Cancer Research Center
1100 Fairview Ave. N, M1-B514
P.O. Box 19024
Seattle, WA 98109-1024
E-mail: hpa...@fredhutch.org
Phone: (206) 667-5791
Fax: (206) 667-1319
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