Re: [Rd] Same class name, different package

2011-07-25 Thread John Chambers
On 7/25/11 12:07 AM, Martin Maechler wrote: John Chambers on Sun, 24 Jul 2011 14:58:23 -0700 writes: > A point that has come up a couple of times with the new > test is that two classes from two packages may be "the > same class". Should that turn on duplicate classes?

Re: [Rd] Best practices for writing R functions (really copying)

2011-07-25 Thread Henrik Bengtsson
Use tracemem() instead, i.e. > A <- matrix(c(1.0,1.1), nrow=5, ncol=10); > tracemem(A); [1] "<0x047ab170" > A[1,1] <- 7; > B <- sqrt(A); tracemem[0x047ab170 -> 0x0552f338]: > A[1,1] <- 7; > B <- t(A); > A[1,1] <- 7; tracemem[0x047ab170 -> 0x057ba588]: > A[1,

[Rd] CRAN mirror size mushrooming; consider archiving some?

2011-07-25 Thread Paul Johnson
Hi, everybody I'm setting up a new CRAN mirror and filled up the disk space the server allotted me. I asked for more, then filled that up. Now the system administrators want me to buy an $800 fiber channel card and a storage device. I'm going to do that, but it does make want to suggest to you

Re: [Rd] plot.function documentation/export?

2011-07-25 Thread Ben Bolker
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 07/25/2011 12:55 PM, Uwe Ligges wrote: > > > On 25.07.2011 17:45, Ben Bolker wrote: > >I recently suggested to someone ( > http://stackoverflow.com/questions/6789055/r-inconsistency-why-add-t-sometimes-works-and-sometimes-not-in-the-plot-func

Re: [Rd] plot.function documentation/export?

2011-07-25 Thread Uwe Ligges
On 25.07.2011 17:45, Ben Bolker wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I recently suggested to someone ( http://stackoverflow.com/questions/6789055/r-inconsistency-why-add-t-sometimes-works-and-sometimes-not-in-the-plot-functi/6789098#6789098 ) that the should use methods("pl

Re: [Rd] Randomness not due to seed

2011-07-25 Thread Paul Johnson
On Tue, Jul 19, 2011 at 8:13 AM, jeroen00ms wrote: > I am working on a reproducible computing platform for which I would like to > be able to _exactly_ reproduce an R object. However, I am experiencing > unexpected randomness in some calculations. I have a hard time finding out > exactly how it oc

Re: [Rd] Best practices for writing R functions (really copying)

2011-07-25 Thread Matt Shotwell
Also consider subsetting: cat("a: "); print(system.time( { A <- matrix(c(1.0,1.1),5,1000); 0 } )) cat("h: "); print(system.time( { sum(A[1:5,1:1000]) } )) cat("i: "); print(system.time( { sum(A[]) } )) cat("j: "); print(system.time( { sum(A) } )) In contrast with Python's NumPy array, the

[Rd] Best practices for writing R functions (really copying)

2011-07-25 Thread Radford Neal
Gabriel Becker writes: AFAIK R does not automatically copy function arguments. R actually tries very hard to avoid copying while maintaining "pass by value" functionality. ... R only copies data when you modify an object, not when you simply pass it to a function. This is a bit misleadin

[Rd] plot.function documentation/export?

2011-07-25 Thread Ben Bolker
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I recently suggested to someone ( http://stackoverflow.com/questions/6789055/r-inconsistency-why-add-t-sometimes-works-and-sometimes-not-in-the-plot-functi/6789098#6789098 ) that the should use methods("plot") or methods(class="function") to locate

Re: [Rd] Start-up messages when Importing from a package

2011-07-25 Thread Mauricio Zambrano-Bigiarini
Prof Brian Ripley wrote: The message is from maptools (as it says), not sp. Thank you very much prof. Ripley for pointing out my error. No, there is nothing you can do when dependent packages put out messages. You could ask the maintainer not to put the message out when rgeos is available

Re: [Rd] Same class name, different package

2011-07-25 Thread Martin Maechler
> John Chambers > on Sun, 24 Jul 2011 14:58:23 -0700 writes: > A point that has come up a couple of times with the new > test is that two classes from two packages may be "the > same class". Should that turn on duplicate classes? > One situation where the answer seem