similar to: typo in sprintf format string segfaults R

Dear list. Has anybody had any issues with ROracle, namely consistently leading to a segmentation fault? One of our oracle databases seems to have certain issues at the moment (do not know what exactly though) and if that one is queried ROracle definitely fails with a segmentation fault. Any ideas? Here is the trace and below is also a type of query that crashes it: *** caught segfault ***

Dear List: Sorry for posting maybe a trivial question, but I have a basic understanding problem. If I have say pack1 and pack2, two R packages, and pack2 depends on and imports pack1 fully (as in the code below), is there a way to make all the functionality of pack1 available for the global and other environments (not only for the functions called from withing pack2) by loading pack2 only? I

Dear list. It is a known issue that accessing slots of S4 objects and in particular accessing .Data slots is slow in R. However, what surprises me are two things demonstrated in the code below (runnable with 'inline', my times are in the comments): - copying data out of a large 3x1e7 .Data slot into a matrix can be easily made 3-4 times faster than accessing a .Data slot which I believe

Given S4 methods [ and [<-, how do I write the Rd-file usage clause for the latter one? What I have now is: \S4method{[}{TimeSeries,TimeDate,missing}(x, i, j, ..., drop) \S4method{[<-}{TimeSeries,TimeDate,missing,ANY}(x, i, j, ..., value) which results in the following output: ## S4 method for signature 'TimeSeries, TimeDate, missing': x[i, j, ..., drop]

Dear list: I am looking for a good way to create an S4 class that would extend numeric, but would allow NULL instead of data as well. As far as I can see there is no way at the moment to do that, but please correct me if I am wrong. The best solution I came up with so far was the following (it also indicates a problem of using setClassUnion with numeric as one of the classes): I define a class

Hi all: since about a month we encountered a problem with R -e command: spaces in the "command" of R -e "command" are no more tolerated. This same issue affects 2.11 patched (05-05-2010), 2.10.1, and current devel (at least the one of two weeks ago). (I skip the mid of the printouts, replaced with ...) * R -e "message('aaa aaa')" ARGUMENT

Hi, I am trying to define the as.POSIXct as an S4 method for one of my classes. Trying to define a generic, I am getting an error that it is already differently defined in base. However, if I query for it, there is no definition. Being in base, I also cannot really import it. If I define methods without definig a generic, they will work but with a warning that a new generic will be automatically

The behaviour of the plot function when used with xlim/ylim and the matplot function as in the following simple example changed between R2.6.1 and 2.7.0+ producing ugly plots in the new versions. In case of plot it looks like the pretty function is called with wrong arguments (i.e. range of supplied data rather than values of xlim and ylim): m = matrix(c(-0.033, 0.009, 0.064, 0.050, 0.097,

Hello everybody, it looks like the presense of some (do know know which) S4 methods for a given S4 class degrades the performance of xtfrm (used in 'order' in new R-devel) by a factor of millions. This is for classes that ARE derived from numeric directly and thus should be quite trivial to convert to numeric. Consider the following example: setClass("TimeDateBase",

Hi all, assume the following problem: a function call takes a function object and a data variable and calls this function with this data on a remote host. It uses serialization to pass both the function and the data via a socket connection to a remote host. The problem is that depending on the way we call the same construct, the function may be serialized to include the data, which was not

Following my previous post on S3 method despatch, I put debug messages in the code of Axis, Axis.default and plot.default in graphics/R/axis.R and graphics/R/plot.R to print the class of x, at and y on plot. After recompiling R, what I see is that x *lost* its class attribute (at least for classes not known to 'graphics') in Axis, called directly from plot.default and this could be the

Hi all: following the previous discussion, it looks like plot(x) with y=NULL still does not work correctly. If one tries for example plot(1:5) it works, but already for plot(runif(100)) it does not. I posted the proposed correction for plot.POSIXct and plot.POSIXlt before. Please voice your opinions whether the following fix for plot.default could be reasonable? I include the full function and

Dear developers: I have observed a change in the behaviour of S3 method despatch (as I guess related to namespaces) between 2.6.2 and yesterday's 2.7.0 RC and would be grateful if you could comment on that: the 'Axis' function in the 'graphics' namespace calls UseMethod("Axis",x), internally to despatch on the S3 Axis method depending on the type of the argument.

Dear list: I would like to override the default way R formats plot axes with a custom method(s). Obviously I would prefer to define it as general as possible avoiding writing a custom method for each individual class where possible. The plot.default method (and I assume other methods as well) calls Axis(...) to produce the axis layout depending on data. In this sense it seems reasonable to

As I haven't got any replies to my earlier posts about incorrect tick positions in plot and matplot, here is the simplest patch to correct this issue (it fixes both plot with xlim/ylim and matplot). The plot.R was unchanged between 2.7 and current R-devel. It would be great if the patch could be (tested and) applied to both the current patched and the current devel versions. 70,71c70,71 <

Dear list: working with date/times I have come across a problem that ISOdate and ISOdatetime are too slow on large vectors of data. I was surprised just until I looked at the implementation and the man page: "ISOdatetime and ISOdate are convenience wrappers for strptime". In other terms, they convert data to character representation first in order to create a POSIXlt object that is then

Dear list: is there any good reason why 'c', 'cbind', 'rbind' etc (all defined as 'function(..., <rest>)') are generic and thus methods can be defined whereas such quite useful functions like 'cat' and 'write' are not? Would it not be reasonable to add such functionality? This would allow to define S3/S4 methods for cat and write for complex

Dear list subscribers, this is posted in appreciation of the level of skill that subscribers to this mailing list enjoy and in no way to abuse it. We are looking to hire a Research Developer with extensive R and/or python development skills. If interested (below), please contact me directly on osklyar at ahl.com: Man Group / AHL Research Developer [3040] Man is a world-leading alternative

Hi all: we have noticed for quite a while that certain errors cannot be handled by R try, tryCatch etc blocks, but it was fairly difficult to understand what were the conditions for this incorrect behaviour. Finally I stabbed across a very understandable case, which is outlined in the (runnable) example below. The main message is: wrapping an S4 method call in a try block will not help if an

Dear community, this is just a suggestion, but might be useful for the following R releases. I was programming some C code for R and my compiler constantly showed me some crazy messages that a stdc++ macro length() was supplied with 4 arguments whereas only one was required. The problem could be partially resolved by changing the order of includes. However as soon as the file was used from