similar to: Non-GPL C (or R) inside of a package

Hi all, Is there any chance that readRDS and saveRDS might one day become read.rds and write.rds? That would make them more consistent with the other reading and writing functions. Hadley -- Assistant Professor / Dobelman Family Junior Chair Department of Statistics / Rice University http://had.co.nz/

i know RCurl pakage to retrieve web content,it has limited use, i want interactive package like (in perl--->Mechanize, In java--->Watij,Prowser,HTMLunit,HTTPunit, in Ruby---->Watir ,etc) this modules/packages opens appropriate browser,which can create queries,retrieves output, clicks buttons, fill up form automatically,searches keyword in search engine, Downloads many items from

My purpose in mentioning the Julia language (julialang.org) here is not to start a flame war. I find it to be a very interesting development and others who read this list may want to read about it too. It is still very much early days for this language - about the same stage as R was in 1995 or 1996 when only a few people knew about it - but Julia holds much potential. There is a thread about

R> seq(as.Date(Sys.Date()), by="-1 months", length=6) [1] "2012-01-31" "2011-12-31" "2011-12-01" "2011-10-31" "2011-10-01" "2011-08-31" R> Notice how October appears twice. Now, date arithmetic is gruesome but the documentation for seq.Date et al does not hint it wouldn't honour the by= argument. So a bug, or

Happy 2013, Day 2. I can't seem to figure out why parent.frame() works differently depending on whether it is a formal/default argument or a passed argument. ##### code: basic setup #### tmp <- tempfile() A <- 101 save(A,file=tmp);rm(A) # these work as expected, loading into the parent of the call load() load(tmp);str(A);rm(A) load(tmp, parent.frame());str(A);rm(A) load(tmp,

Dear all, In R-devel (2011-09-23 r57050), I'm running into a serious problem with seek()ing on connections opened with gzfile(). A warning is generated and the file position does not seek to the requested location. It doesn't seem to occur all the time - I tried to create a small example file to illustrate it, but the problem didn't occur. However, it can be seen with a file I use for

The "R Language Definition" at http://cran.r-project.org/doc/manuals/R-lang.html states in the following section 4.3.2 Argument matching This subsection applies to closures but not to primitive functions. What are 'closures'? [[alternative HTML version deleted]]

Hello, I'm trying to access an object, given only its name as a symbol. I cannot figure out how to proceed. Suppose I call substitute( ) on the expression 'x + 2': > parse.tree <- substitute(x + 2); The constituents of parse.tree are of type symbol and numeric: > str(parse.tree[[1]]) symbol + > str(parse.tree[[2]]) symbol x > str(parse.tree[[3]]) num 2 Suppose

Hi, Is there any way that a package can listen for when R quits? The Qt stuff is hooking into platform-specific event loops and when those die unexpectedly (from the perspective of Qt), it aborts, causing an annoying error dialog. If we could catch when R is killed, we could cleanup, like we do with .onUnload. Thanks, Michael [[alternative HTML version deleted]]

R-helpers: What would be the absolute fastest way to make a large "empty" file (e.g. filled with all zeroes) on disk, given a byte size and a given number number of empty values. I know I can use writeBin, but the "object" in this case may be far too large to store in main memory. I'm asking because I'm going to use this file in conjunction with mmap to do parallel

To me it seems like writeBin() writes one char/byte more than expected. > con <- file("testbin", "wb") > writeBin("ttccggaa", con) > close(con) > con <- file("testbin", "rb") > readBin(con, what="character") [1] "ttccggaa" > seek(con, what=NA) [1] 9 > close(con) > con <-

For the people who are currently interested in java as it relates to centos now that Sun has GPL'd java there are some things to be aware of. The folks at jpackage.org are pretty much all over this development but it's not the bright shiny news everyone has made it out to be. Sun did a very good thing by moving java under the GPL, and they should be commended for FINALLY seeing the light

Hi, Have I missed something, or misunderstood? The r-help posting guide asks users to contact the package maintainer : "If the question relates to a contributed package, e.g., one downloaded from CRAN, try contacting the package maintainer first. [snip] ONLY [only is bold font] send such questions to R-help or R-devel if you get no reply or need further assistance. This applies to both

Happy 2013! Can someone with more knowledge of edge case scoping/eval rules explain what is happening below? Happens in all the versions of R I have on hand. Behavior itself is confusing, but ?as.environment also provides no clue. The term used in that doc is 'search list', which is ambiguous, but the see also section mentions search(), so I would *think* that is what is intended.

Dear useR's, today I stumbled over an interesting phenomenon: First, I created a named numeric vector with a certain class and several attributes via the structure() function. After that, I implemented a simple print method for this class. When calling this function it produces an endless loop of print calls until R crashes. :/ What is going on here? Is this a bug or have I done something

I would appreciate some help with this. I read the GPL license and basically it says you can do whatever you want with the software (sell, modify) as long as you include the source code, the License and make any changes you make available in the same manner to all others. My questions is this: If I develop an external application (say a Call Center application or a GUI management application)

Hi all, I've added tail call optimization to x86. This is different from what -tailcallopt does, which forces fastcc function to be tail callable. My changes detect opportunities to do tail call without having to change the ABI. I've looked at the codegen of -tailcallopt and it doesn't look all that good. Running it as a llcbeta option shows it significantly pessimize code in most

Hi, The C function PrintWarnings is currently not in the C API, but it is declared non static in the svn trunk as of revision 53110 . As this is the only function that creates the last.warning object used by the R function warnings(), I think it would be useful for programs that embed R to be able to call it. So, will it remain non static, that is callable although it's not declared in the

I'm having troubles with the names of columns. quantmod deal with stock quotes. I've created an array of the first 5 closing prices from Jan 2007. (Is there a problem that the name is the same as the variable name? There shouldn't be.) > close close 2007-01-03 1416.60 2007-01-04 1418.34 2007-01-05 1409.71 2007-01-08 1412.84 2007-01-09 1412.11 When I try to

Thanks for improving this! Since no good deed can go unpunished, could you also update the LangRef and codegen documents to describe the new state of the world? It might also be nice to mention there that tail calls can be needed for correctness in addition to performance and how users can guarantee that a call will be transformed, since both if us have forgotten recently. I can take a stab at the