Hello,
a day or two ago I submitted VGAM 0.9-5 to CRAN, which has
myriads of changes to family functions---their names, their
arguments, and their order thereof. Especially regarding
family functions for discrete and continuous distributions.
In a nutshell, I found lots of inconsistencies while writing
my book, and it was deemed necessary to standardize things.
I just had to bite the bullet, so to speak. I have tried
to summarize all changes in the NEWS file, however, a few
might have gone undocumented. Users of previous versions
of VGAM are cautioned to check their code. My apologies
for this inconvenience.
I have always tried to make it plain that while the
version number was less than 1.0-0, everything was subject
to change. But the book "Vector Generalized Linear and
Additive Models", for Springer, should appear next year,
it is synchronized with version 1.0-0, so that should end
most of these disruptive changes :) Or at least, curtail them
(hopefully).
cheers
Thomas
ps. for this particular problem, only frechet() remains.
On 06/11/14 23:12, Rolf Turner wrote:
Dear Ms. Gobin,
There would appear to be a typo in the package manual that appears on
CRAN. Doing ?Frechet (it would be nice to have this aliased also to
"frechet") points you immediately to frechet. With "frechet2"
substituted for "frechet" your code, everything works.
cheers,
Rolf Turner
On 06/11/14 22:34, Katherine Gobin wrote:
Dear Mr Michael,
Thanks a lot for your guidance. The pdf file describing VGAM package
has mentioned 'frechet' in the example, so I got the error.
Regards
Katherine
On Thursday, 6 November 2014 2:54 PM, Michael Dewey
<i...@aghmed.fsnet.co.uk> wrote:
On 06/11/2014 06:04, Katherine Gobin wrote:
Dear R forum,
I am trying to execute following code (Page no 259 - VGAM.pdf)
#
.........................................................................................................................
library(VGAM)
set.seed(123)
fdata <- data.frame(y1 = rfrechet(nn <- 1000, shape = 2 + exp(1)))
with(fdata, hist(y1))
fit2 <- vglm(y1 ~ 1, frechet, data = fdata, trace = TRUE)
#
.........................................................................................................................
Is it not called frechet2?
However, I receive following error
Error in vglm(y1 ~ 1, frechet, data = fdata, trace = TRUE) :
object 'frechet' not found
Earlier there used to be a function called "frechet3" which I guess
has been withdrawn by VGAM.
Kindly guide
Katherine
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