On Fri, 18 Dec 2009, Hien Nguyen wrote:
Dear Drs Winsemius and Berry,
Thanks a lot for your comment and suggestions on running my model. I am not
just new to R but new to CLM as well. :( With your suggestions, I figure out
that I have huge misunderstandings on the model and data arrangement.
survival = exp(-hazard)
-thomas
On Wed, 16 Dec 2009, Laura Bonnett wrote:
Dear R-help,
I am trying to obtain the baseline survival estimate of a fitted Cox model
(S_0 (t)). I know that previous posts have said use 'basehaz' but this
gives the baseline hazard function and not the
On Wed, 16 Dec 2009, Peng Yu wrote:
On Tue, Dec 15, 2009 at 10:32 PM, hadley wickham h.wick...@gmail.com wrote:
I don't understand what these addresses mean. Would you please help me
understand it?
Did you try reading the documentation?
When an object is traced any copying of the object
On Tue, 15 Dec 2009, Peng Yu wrote:
2009/12/15 tlum...@u.washington.edu:
On Wed, 16 Dec 2009, Peng Yu wrote:
On Tue, Dec 15, 2009 at 10:32 PM, hadley wickham h.wick...@gmail.com
wrote:
I don't understand what these addresses mean. Would you please help me
understand it?
Did you try
On Fri, 13 Nov 2009, milton ruser wrote:
Hi Ana, you did again :-)
require(fortunes)
fortune(dog)
Firstly, don't call your matrix 'matrix'. Would you call your dog 'dog'?
Anyway, it might clash with the function 'matrix'.
-- Barry Rowlingson
R-help (October 2004)
if you call your data
On Wed, 11 Nov 2009, David Winsemius wrote:
On Nov 11, 2009, at 7:45 PM, Mauricio Calvao wrote:
When I try:
fit_mod - lm(y~x,weights=1/error^2)
I get
Warning message:
In lm.fit(x, y, offset = offset, singular.ok = singular.ok, ...) :
extra arguments weigths are just disregarded.
On Wed, 11 Nov 2009, Peng Yu wrote:
On Mon, Oct 19, 2009 at 7:57 PM, Peng Yu pengyu...@gmail.com wrote:
tmp - matrix(1:2)
tmp
tmp[,1,drop=FALSE]
See the above example. Is there a way to make 'drop=FALSE' as global
default, so that when I say 'tmp[,1]', R will treat it as
On Wed, 11 Nov 2009, Larry Hotchkiss wrote:
Hi,
I'm responding to the question about storage error, trying to read a 300 x
100 dataset into a data.frame.
I wonder whether you can read the data as strings. If the numbers are all one
digit, each cell would require just 1 byte instead of
On Tue, 10 Nov 2009, maiya wrote:
OK, it's the simple math that's confusing me :)
So you're saying 2.4GB, while windows sees the data as 700KB. Why is that
different?
Your data are stored on disk as a text file (in CSV format, in fact), not as
numbers. This can take up less space.
And
On Tue, 10 Nov 2009, jim holtman wrote:
Have you tried something like this:
my.results = apply(chr, 2, function(x){
result - try(anova(lrm( cpstc.f ~ x + time.cpstc + age + sex + mri))[1,3])
if (inherits(result, try-error)) return(NULL)
result
})
This should catch the error and have
On Tue, 10 Nov 2009, nana wrote:
I will be glad if someone can point out what I am doing wrong or not doing at
all in this.
Sending the same message to both r-help and r-devel is one thing you are doing
wrong.
I am trying to write out netcdf file in R. I have 26 time step but only the
On Tue, 10 Nov 2009, Sam Albers wrote:
Hello,
I am having a little trouble formatting my dates correctly. When I plot
something using the following commands, R plots the most recent date on the
left of the figure and then earlier date on the right of the figure. Given
that English is read from
On Mon, 2 Nov 2009, Thushyanthan Baskaran wrote:
Hi,
I am trying to write a function to compute many cross-tabulations with the
-svytable- command. Here is a simplified example of the structure of my code
(adapted from the -svytable- help file):
In the 'survey' package -- if you say what
memory.size()
[1] 1449.06
gc()
used (Mb) gc trigger (Mb) max used (Mb)
Ncells 131148 3.6 593642 15.9 15680924 418.8
Vcells 45479988 347.0 173526492 1324.0 220358611 1681.3
A description of the survey package can be found here:
http://faculty.washington.edu/tlumley/survey
It is perhaps also worth mentioning that this is the very first question in the
actual R questions section of the R FAQ.
7.1 How can I set components of a list to NULL?
You can use
x[i] - list(NULL)
to set component i of the list x to NULL, similarly for named components. Do
not set
On Thu, 22 Oct 2009, Mura Tamakou wrote:
Dear All,
I have a question regarding the output of survfit() when I supply a Cox model.
Lets say for example:
snipped: code that doesn't quite run
we observe that the 95% CIs overlap!! How is this possible since the HR for
spiders is significant.
()
[1] 1449.06
gc()
used (Mb) gc trigger (Mb) max used (Mb)
Ncells 131148 3.6 593642 15.9 15680924 418.8
Vcells 45479988 347.0 173526492 1324.0 220358611 1681.3
A description of the survey package can be found here:
http://faculty.washington.edu/tlumley/survey/
I tried
On Mon, 19 Oct 2009, Fulton wrote:
I’m running some logistic regressions and I’ve been trying to include weights
in the equation. However, when I run the model, I get this warning message:
Here’s what it says: Warning message: In eval(expr, envir, enclos) :
non-integer #successes in a
On Mon, 19 Oct 2009, Jun Chen wrote:
Dear,
I would like to deal with microarray data, it can run when i deal with
little data. However, the amount number of SNP data are 45181, amount
numbers of animal are 3081,it can not be allocated 1000Mb memory when
i importing them to R
Procedure sentence
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