Hello R community,
I have two questions:
The first might be one of the silliest ever posted here and I
apologize if I've missed some thing very obvious. It relates to using
this digest. When I subscribed to the forum, I had chosen the "digest"
option that bundles all mails every day into a single
Hello R community,
I have a question about the logistic regression function.
Specifically, when the predictor variable has not just 0's and 1's,
but also fractional values (between zero and one). I get a warning
when I use the "glm(formula = ... , family = binomial(link =
"logit"))" which says:
"
() applied to non-(list or vector) of type 'NULL'
2: In is.na(x) : is.na() applied to non-(list or vector) of type 'NULL'
Again, thanks for your patience and help.
Rohit
On Wed, May 4, 2011 at 4:44 AM, Andrew Robinson <
a.robin...@ms.unimelb.edu.au> wrote:
> I sugg
Hello R community,
I have been using R's inbuilt maximum likelihood functions, for the
different methods (NR, BFGS, etc).
I have figured out how to use all of them except the maxBHHH function. This
one is different from the others as it requires an observation level
gradient.
I am using the foll
Hi R community,
I posted a question on using the R maximum likelihood functions a short
while ago and got an email saying that some of the content was
"unprocessed". Hence, I am reposting the question just to be sure (sorry for
the multiple emails if both reached you).
My question is reagarding t
Awesome,that worked! Thanks.
On Wed, Mar 16, 2011 at 6:46 AM, Henrique Dallazuanna wrote:
> Try this:
>
> mapply('/', l1, l2, SIMPLIFY = FALSE)
>
> and
>
> tapply(1:5, lapply(indxLi, as.numeric), sum)
>
>
> On Tue, Mar 15, 2011 at 6:06 PM, Rohit Pa
Hello R community,
I have two questions about using R.
The first is about dividing each element of a list with another similar
sized list. So, if the first list has two elements and so does the second,
then the result should also be a list with two elements.
For example, the inputs are:
list(ma
Hi R community,
I have a question I'm sure is very simple for most of you.
I have a list, with each element being a matrix and the names of the
elements are numbers (like 1,3,...). I can extract the matrices and the
names individually. Now, I want to multiply each of the names to the
individual l
asets tcltk methods
base
On Sat, Feb 19, 2011 at 9:21 PM, Douglas Bates wrote:
> On Sat, Feb 19, 2011 at 12:56 AM, Rohit Pandey
> wrote:
> > Hi Christopher/ Dirk,
>
> > Thank you very much for your replys. I think the idea of using inline as
> you
> > sugges
chanics work.
>
> Aside from looking up the Rcpp::sugar functionality used in places above,
> you might also want to look at package "RcppArmadillo", if functions and
> calculations involve linear algebra calcs/matrix operations. Hopefully this
> gives you some food-for-
Hi,
I have been using R for close to two years now and have grown quite
comfortable with the language. I am presently trying to implement an
optimization routine in R (Newton Rhapson). I have some R functions that
calculate the gradient and hessian (pre requisite matrices) fairly
efficiently. Now,
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