Thank you all.
It's not easy to find the right keywords to search for
some things. My problem was related to the cclust
package, and I still think that the cclust code will
not work for unidimensional data. I will fix the
my copy of the cclust code according to your suggestion.
Moacir Pedroso Jr.
Embrapa - Empresa Brasileira de Pesquisa Agropecuária
(on leave at INRA - Instutute National de la Recherche Agronomique)
Quoting Jeff Ryan <[EMAIL PROTECTED]>:
This is expected behavior:
?'['
Usage:
x[i]
x[i, j, ... , drop = TRUE]
drop: For matrices and arrays. If 'TRUE' the result is coerced to
the lowest possible dimension (see the examples). This only
works for extracting elements, not for the replacement. See
'drop' for further details.
try cov(x[sub, drop=FALSE])
HTH
Jeff
Pedroso MOACIR wrote:
Hi all,
Well, I just sent a help msg to the list with this subject,
but I think I figured out a way to solve my problem
(although I still have no clue if the behavior I described
is correct).
What I did was to replace occurrences of (for example)
cov(x[sub, ])
with
cov(matrix(x[sub, ], ncol=ncol(x))
It works.
I updated my source version of the cclust package. It
may be of interest to somebody else, but I don't know
how to submit to the package mantainer.
Thank you.
Moacir Pedroso Jr.
Embrapa - Empresa Brasileira de Pesquisa Agropecuária
(on leave at INRA - Instutute National de la Recherche Agronomique)
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