search for: parn

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2006 Aug 08
0
(Fwd) Re: paired t-test. Need to rearrange data?
------- Forwarded message follows ------- From: Petr Pikal <petr.pikal at precheza.cz> To: Henrik Parn <henrik.parn at bio.ntnu.no> Subject: Re: [R] paired t-test. Need to rearrange data? Date sent: Tue, 08 Aug 2006 16:13:47 +0200 Hi Uff, it takes me a bit headache but this shall do it ?unstack ?table ?t new.list<-unstack(test.data,y~id) new.test.data<-t(as.data.frame(ne...
2004 Jul 14
4
aspect ratio ?
Can someone enlighten me on what the status is of aspect ratio in theora is ? The ti structure has aspect_num and _den values, which I assume give the intended display aspect ratio (e.g. 4/3). The sample files on the bittorrent seem to say both values are 0 for all files. I'd think it should at least be made impossible to have a 0 as the denominator. The library doesn't check the
2008 Apr 29
2
help text for xlim
...sh_United Kingdom.1252;LC_NUMERIC=C;LC_TIME=English_United Kingdom.1252 WinXP -- Henrik P?rn Centre for Conservation Biology Department of Biology Norwegian University of Science and Technology NO-7491 Trondheim Norway Office: +47 73596285 Fax: +47 73596100 Mobile: +47 90989255 E-mail: henrik.parn at bio.ntnu.no
2006 Aug 06
2
paired t-test. Need to rearrange data?
Dear all, I have received some data arranged like this: # original data id <- rep(letters[1:6], each=2) time <- as.factor(rep(1:2, 6)) y <- as.vector(replicate(6, c(rnorm(n=1, mean=1), rnorm(n=1, mean=2)))) test.data <- data.frame(id, time, y) test.data I would like to perform a paired t-test of the y-values at time=1 against those at time=2, with samples paired by their id. Is it
2006 Aug 03
2
efficient way to make NAs of empty cells in a factor (or character)
Dear all, I have some csv-files (originating from Excel-files) containing empty cells. In my example file I have four variables of different classes, each with some empty cells in the original csv-file: > test <- read.csv2("test.csv", dec=".") > test id id2 x y 1 a 1 NA 2 b e NA 2.2 3 f 3 3.3 4 c g 4 4.4 > class(test$id) [1]
2018 Nov 29
2
named arguments discouraged in `[.data.frame` and `[<-.data.frame`
...there as well. Sometimes. At least when 'x' argument is not first, as shown in Bill's examples. Obviously my "test" was insufficient... Cheers, Henrik From: William Dunlap <wdunlap at tibco.com> Sent: Wednesday, November 28, 2018 9:10 PM To: Henrik P?rn <henrik.parn at ntnu.no> Cc: r-devel at r-project.org Subject: Re: [Rd] named arguments discouraged in `[.data.frame` and `[<-.data.frame` They can get bitten in the last two lines of this example, where the 'x' argument is not first: > d <- data.frame(C1=c(r1=11,r2=21,r3=31), C2=c(12,22,32...
2002 Sep 25
1
Access Violation
...a kernel to a client using tftpd-hpa, is there any way to track down the source of the error message, "PXE-T02 Access violation"? All the files in /tftpboot have root ownership and 644 permissions, and this works fine if I use an etherboot-derived floppy to start the boot process. Bob Parnes -- Bob Parnes rparnes at megalink.net
2002 Sep 24
1
tftpd-hpa
...ion is required, debian installed tftpd-hpa as in.tftpd, and the version reported is 0.28. I examined the archives on this mailing list, which is where I got the entry for xinetd.conf, but apparently everyone else is succeeding where I have failed. So I would be grateful for any help. Thanks. Bob Parnes -- Bob Parnes rparnes at megalink.net
2011 Feb 15
1
Estimation of an GARCH model with conditional skewness and kurtosis
Hello, I'm quite new to R but tried to learn as much as possible in the last few months. My problem is that I would like to estimate the model of Leon et al. (2005). I have shortly summarised the most important equations in the following pdf file: http://hannes.fedorapeople.org/leon2005.pdf My main question is now how could I introduce these two additional terms into the Likelihood
2010 Jan 11
2
Documentation: format of read.table help text (PR#14180)
...[1] cluster_1.12.1 grid_2.10.1 lattice_0.17-26 svMisc_0.9-56 tools_2.10.1 -- Henrik P?rn Centre for Conservation Biology Department of Biology Norwegian University of Science and Technology NO-7491 Trondheim Norway Office: +47 73596285 Fax: +47 73596100 Mobile: +47 90989255 E-mail: henrik.parn at bio.ntnu.no
2009 Dec 17
2
Wrong links in help help files? (PR#14155)
...methods base loaded via a namespace (and not attached): [1] tools_2.10.1 -- Henrik P?rn Centre for Conservation Biology Department of Biology Norwegian University of Science and Technology NO-7491 Trondheim Norway Office: +47 73596285 Fax: +47 73596100 Mobile: +47 90989255 E-mail: henrik.parn at bio.ntnu.no
2018 Nov 29
0
named arguments discouraged in `[.data.frame` and `[<-.data.frame`
...may be used, and then naming them is superfluous. By the way, when trying some things I noticed something else, which I'll send a separate mail about... Cheers, Emil ?On 29/11/2018, 09:20, "R-devel on behalf of Henrik P?rn" <r-devel-bounces at r-project.org on behalf of henrik.parn at ntnu.no> wrote: Thanks Bill and Michael for taking the time to share your knowledge! As a further background to my question, here are two examples that I forgot to include in my original post (reminded by Michael's answer). I swapped the i and j arguments in `[.data.frame`...
2002 Sep 27
0
Re: ARP Timeout
...se lines, the boot continued to its conclusion. For some reason I cannot get an arp reply using the boot agent in either of two motherboards. Maybe the problem is due to hardware, but not knowing how arp works, I had assumed it is a software issue. Is there any way to pin this down further? Bob Parnes -- Bob Parnes rparnes at megalink.net
2018 Nov 28
3
named arguments discouraged in `[.data.frame` and `[<-.data.frame`
tl;dr: Why are named arguments discouraged in `[.data.frame`, `[<-.data.frame` and `[[.data.frame`? (because this question is of the kind 'why is R designed like this?', I though R-devel would be more appropriate than R-help) ############################# Background: Now and then students presents there fancy functions like this:
2007 Oct 26
1
[Fwd: Re: subsetting]
...s you just >the three ids. > >As I read the criteria if we put the data into a >data.frame you have > >subset(mydata ,year==year.hatch & year.1st.reprod == >year.hatch+1) > >but this gives more than the three ids. What am I >missing? > >--- henrik.parn at bio.ntnu.no wrote: > > > >>Dear all, >> >>I have received some data on birds that looks sth >>like this: >> >># a unique id for each individual >>id <- c(1,1,1,2,2,2,3,3,3,4,4,5,6) >> >># the year the bird was measured...
2005 Nov 30
1
SciViews-R_0.8-9 Console problem
Dear R users, I successfully installed SciViews the other day. However, when I try to run it now, the command/script window does not appear. Strange. Well, actually I see a tendency to a script window (in the lower part of the sciview window where it is suppose to be) during start up, but when the program is entirely open, the script window is gone. I have tried to uninstall and reinstall
2006 Aug 08
1
fixed effects following lmer and mcmcsamp - which to present?
Dear all, I am running a mixed model using lmer. In order to obtain CI of individual coefficients I use mcmcsamp. However, I need advice which values that are most appropriate to present in result section of a paper. I have not used mixed models and lmer so much before so my question is probably very naive. However, to avoid to much problems with journal editors and referees addicted to
2006 Sep 27
1
equivalent of model.tables for an lm.object?
Dear all, I run a linear model with three significant explanatory variabels x1: a factor with 4 levels x2 and x3: factors with two levels each x4: continuous model <- lm(y ~ x1 + x2 * x3 + x4) <> The data is not perfectly balanced between the different factor-combinations and I use treatment contrasts. <> With an aov.object, I assume I could have used model.tables(aov.object,
2009 Jan 15
0
help text for ave()
...could be used as an example. Thank you all for your great work developing R! -- Henrik P?rn Centre for Conservation Biology Department of Biology Norwegian University of Science and Technology NO-7491 Trondheim Norway Office: +47 73596285 Fax: +47 73596100 Mobile: +47 90989255 E-mail: henrik.parn at bio.ntnu.no
2004 May 20
0
theora header bitmap for alpha3
...fset_x| PICY: offset_y| FRN: fps_numerator | 20-23 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | | FRD: fps_denominator | 24-27 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | | PARN: aspect_numerator | 28-31 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | | PARD: aspect_denominator | 32-35 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | CS: colorspace| NOMBR: target_bitrate...