similar to: matching symbols to objects

Hello, Are there any good tools available for monitoring the performance of R? I'm wanting to capture things such as time elapsed in evaluating an expression, memory usage over time (or operation), and so on. I could build my own but would like to follow established practice, if there is one. Thank you, Patrick [[alternative HTML version deleted]]

R-devel, I am interested in creating a package that requires non-GPL'd (commercial) C code to work. In essence it is a single .c file with no use of R headers (all .C callable functions). For example's sake: 1 #include <stdio.h> 2 3 void test (int *a) { 4 *a = 101; 5 } The package isn't destined for CRAN, and I realize that this isn't R-legal, but looking for

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/

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,

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]]

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

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 <-

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

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

I'm doing these manipulations on the data frame and wondering why does R have to remember historical data on my operation and not just keep the needed info. Probably a basic fundamentals of the way R handles data .. Pls point me to the manual if possible .. I have this Index data: > head(NIFTY_INDX) Constituents.list.of.S.P.CNX.Nifty X X.1 X.2 X.3

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

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 have a question concerning the Wilcoxon signed-rank test, and specifically, which R subroutine I should use for my particular dataset. There are three different commands in R (that I'm aware of) that calculate the Wilcoxon signed-rank test; wilcox.test, wilcox.exact, and wilcoxsign_test. When I run the three commands on the same dataset, I get different p-values. I'm hoping that

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

QUESTION: is there a way to make objects (e.g. data frames) read-only? BACKGROUND: I am writing some functions that use a data frame (frequencies of tidal constituents) that I want to be read-only. I can see how to accomplish this within a single function (just define the data in the function), but I'm not sure how to share read-only values between (un-nested) functions. Is there a more

I have a matrix that looks like this: structure(c("0.0376673981759913", "0.111066500741386", "1", "1103", "18", "OPEN", "DEPR", "0.0404073656092023", "0.115186044704599", "1", "719", "18", "OPEN", "DEPR", "0.0665342096693433",

Hi I have both host and KVM/QEMU guest VM running linux. Questions: What are the constituents of the virsh dump? - What all areas does it dumps? - Is it same as taking guest VM's core dump via kexec/kdump? - Does it include QEMU's info to debug qemu-level issues? Thanks much in advance. >harish -------------- next part -------------- An HTML attachment was scrubbed... URL:

Questions about concatenated ogg files have been popping up recently. Here's another one — is there an easy way of splitting a concatenated ogg file back to its constituents? i.e. if you have a complete album that has been concatenated to a single file using the copy command in Windows (I suspect an analog of cat in *nix), is there a way to split it back into tracks? Sergey <p>---