I'm reading Ripley-Venables Modern Applied Statistics with S - Fourth edition , at
the same time trying the examples proposed in the book using R 1.8.1 under linux.
Now I'm trying the following code from the book (example code of spatial statistics
at page 76) with R :
| data(topo)
On Tue, 30 Dec 2003, [EMAIL PROTECTED] wrote:
I'm reading Ripley-Venables Modern Applied Statistics with S - Fourth edition , at
the same time trying the examples proposed in the book using R 1.8.1 under linux.
Now I'm trying the following code from the book (example code of spatial
Another way in this particular case is to transpose m:
write.table(t(m), file=, row.names=FALSE,quote=FALSE)
This transposition creates a 1x2 matrix, for which there is
a method (as.data.frame.matrix). (Don't just use as.matrix(m),
that will be a 2x1 matrix.)
Note that there is a missing
Hi!
The writing R extension states.
The shared object/DLL is loaded by dyn.load and unloaded by dyn.unload. Unloading
is not normally necessary, but it is needed to allow the DLL to be re-built on some
platforms,
including Windows.
I am working on Windows.
I load the dll as described in
Dear R helpers,
I would like to ask why polr occasionally generates results that look very
odd.
I have been trying to compare the power of proportional odds logistic
regression with
the Wilcoxon test. I generated random samples, applied both tests and
extracted and
compared the p-values, thus:-
On Tue, 30 Dec 2003, Murray Jorgensen wrote:
Thanks to Andy, Peter and Roger for drawing my attention to assign(), which
is just what I needed and works fine.
I will just add the usual note that when you find yourself using assign()
it is a good idea to think very carefully about why you can't
On Tue, 30 Dec 2003, Jonathan Williams wrote:
summary(fit1)
Call:
polr(formula = ordered(dat) ~ grp, control = c(maxiter = 1,
trace = 0))
Coefficients:
Value Std. Errort value
grp -15.82468 169.3329 -0.0934531
Intercepts:
ValueStd. Error t value
2|3
Hello:
Anybody knows how to run Rmpi through PBS (Portable Batch System) on a
cluster computer. I'm using a supercomputer which require to submit jobs
to PBS queue for dispatching. I tried use mpirun in my PBS script. But all
my Rslaves are spawned to the same node. This is not desired.
Any
Hi,
Am I missing something in using regexps in R?
Below, 'egrep' means invokation of the command from the shell
prompt.
# I have
as.character(block.dist.vals)
[1] 1e+06 2e+06 5e+06
# that I wish to convert to: 1 2 5
# OK (R and egrep)
sub( e.+06, , as.character(block.dist.vals) )
[1] 1 2 5
In R (and C) \ must be escaped in a character string.
This is mentioned on the help page.
On Tue, 30 Dec 2003, Itay Furman wrote:
Hi,
Am I missing something in using regexps in R?
Below, 'egrep' means invokation of the command from the shell
prompt.
# I have
I couldnt find a previous posting on this in the archives, maybe it has
already been mentioned.
If you use a calculation to generate n observations in random number
generators and you don't round to the nearest integer you may be
generating n-1 numbers not n numbers as you thought depending on
Marcus Davy [EMAIL PROTECTED] writes:
I couldnt find a previous posting on this in the archives, maybe it has
already been mentioned.
If you use a calculation to generate n observations in random number
generators and you don't round to the nearest integer you may be
generating n-1 numbers
Just as an elaboration, this might help further clarify it.
Spit displays each character in x -- one per line.
spit - function(x) for(i in 1:nchar(x)) cat(i,substring(x,i,i),\n)
spit(e\+06) # note that the resulting string does not contain \
1 e
2 +
3 0
4 6
spit(e\\+06) # this time its
I'm sorry if I am missing something, but I am looking for the lda function and can't
find it (used to be in MASS). I know there is reorganization going on for R-1.9 and
expected to find lda in stats, but I didn't. Do I need to go back to R-1.8.1 or is
there an lda function lurking that I
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