[R] Problem with pdf, png, jpeg devices and files named CON on Window s

2007-01-15 Thread Brandt, T. (Tobias)
Hi I cannot seem to create any files that have the name "CON" before the file extension, i.e. all of the following fail: > pdf("CON.pdf") Error in pdf("CON.pdf") : unable to start device pdf > jpeg('CON.jpeg') Error in jpeg("CON.jpeg") : unable to start device devWindows > png('CON.png') Error

Re: [R] odd behaviour of %%?

2006-11-22 Thread Brandt, T. (Tobias)
To answer part 1) of your question, see point 7.31 in the R FAQ (http://cran.r-project.org/doc/FAQ/R-FAQ.html#Why-doesn_0027t-R-think-these- numbers-are-equal_003f). > 0.3 - 3*0.1 [1] -5.551115e-17 It always amazes me in how many different guises the problem of floating point representation crops

Re: [R] filling an array, vectorized

2006-11-17 Thread Brandt, T. (Tobias)
Hi all I don't know much about R internals and what goes on behind the scenes but to me it would seem that lapply(dim(a), function(i) seq(length=i)) accomplishes the same as jj <- function(i) seq_len(dim(a)[i]) lapply(seq_len(length(dim(a))), jj) and might be easier to read. Is there a perform

Re: [R] subsetting, aggregating and zoo

2006-11-02 Thread Brandt, T. (Tobias)
I think the following does what you want: > (d <- structure(c(6586, 6586, 6589, 6593, 6593, 6593, 6598, 6598, 6598, 6598), class = "Date")) [1] "1988-01-13" "1988-01-13" "1988-01-16" "1988-01-20" "1988-01-20" "1988-01-20" "1988-01-25" [8] "1988-01-25" "1988-01-25" "1988-01-25" > (td <- table(d))

[R] Up- or downsampling time series in R

2006-10-26 Thread Brandt, T. (Tobias)
Hi I have data that is sampled (in time) with a certain frequency and I would like to express this time series as a time series of a higher (or lower) frequency with the newly added time points being filled in with NA, 0, or perhaps interpolated. My data might be regularly or irregularly spaced.

Re: [R] sqlSave, fast=F option, bug?

2006-10-23 Thread Brandt, T. (Tobias)
I've also reproduced this behaviour on WinXP + MS SQL Server and would agree that it's a bug with the "fast=FALSE" option. Have the package maintainers been contacted about this? >-Original Message- >From: [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] On Behalf Of chao gai >Sent: 18 Oct

Re: [R] rownames, colnames, and date and time

2006-07-03 Thread Brandt, T. (Tobias)
Hi all I was wondering whether there has ever been an update on the rownames and colnames behaviour as described by Eric below? I still get the same behaviour, exactly as described by Eric, on my WinXP installation of R-2.3.0. I also posted a message to r-help on Friday but looking through the o

Re: [R] Coercion of percentages by as.numeric

2005-11-14 Thread Brandt, T. (Tobias)
>-Original Message- >From: Gabor Grothendieck [mailto:[EMAIL PROTECTED] >Sent: 14 November 2005 06:21 PM > >On 11/14/05, Brandt, T. (Tobias) <[EMAIL PROTECTED]> wrote: >> Hi >> >> Given that things like the following work >> >> >

[R] Coercion of percentages by as.numeric

2005-11-14 Thread Brandt, T. (Tobias)
Hi Given that things like the following work > a <- c("-.1"," 2.7 ","B") > a [1] "-.1" " 2.7 " "B" > as.numeric(a) [1] -0.1 2.7 NA Warning message: NAs introduced by coercion > I naively expected that the following would behave differently. > b <- c('10%', '-20%', '30.0%', '.40%'

[R] [<- and indexing for zoo objects

2005-11-14 Thread Brandt, T. (Tobias)
Hi I've been greatly enjoying the functionality the zoo package offers. However I've hit a snag with the following code > a <- zoo(matrix(1:10,5,2), 2001:2005) > a 2001 1 6 2002 2 7 2003 3 8 2004 4 9 2005 5 10 > a[I(2003), 2] 2003 8 > a[I(2003), 2] <- NA Error: subscr

Re: [R] data.frame-question]

2005-10-26 Thread Brandt, T. (Tobias)
[R] data.frame-question] This is what I am looking for, but I still get an error message, that my arguments are not of the same length. How can I avoid this error message? Maybe I should add, that there are also NA´s in the second column, but I tried to ignore them by na.rm=TRUE. Thanks in advance

Re: [R] data.frame-question

2005-10-26 Thread Brandt, T. (Tobias)
Is TAB3 <- as.data.frame(with(TAB1, tapply(Number, Name, sum))) colnames(TAB3) <- c("Name_singular", "Sum") what you are looking for? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Michael Graber Sent: 25 October 2005 09:45 PM To: R-Mailingliste Subje