similar to: head() for tables

Displaying 20 results from an estimated 40000 matches similar to: "head() for tables"

2007 Dec 13
1
S4 class extending data.frame?
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I would like to build an S4 class that extends a data frame, but includes several more slots. Here's an example using integer as the base class instead: setClass("c1",representation(comment="character"),contains="integer") z1 = new("c1",55,comment="hello") z1 z1+10 z1[1] z1 at comment -- in
2010 Feb 09
1
how to adjust the output
Hi R-users,   I have this code below and I understand the error message but do not know how to correct it.  My question is how do I get rid of “with absolute error < 7.5e-06” attach to value of cdf so that I can carry out the calculation.   integrand <- function(z) { alp  <- 2.0165   rho  <- 0.868   # simplified expressions   a      <- alp-0.5   c1     <-
2003 Nov 13
4
Problem with parser and if/else
Dear r-help people, could you confirm that this is correct behaviour for R? I am using RH9. the code: x1 <- 1:6 t1 <- 5 if (length(x1) >= t1) { cat("in the if \n") } else { cat("in the else\n") } runs fine: > source("test_if_else.R") in the if > but the code: x1 <- 1:6 t1 <- 5 if (length(x1) >= t1) { cat("in the if 2\n") }
2006 Jul 18
1
possibly stupid question about RPM building
I'm trying to build an RPM of R 2.3.1 on a very old RedHat system (specifically, a ROCKS 3.3.0 cluster which is built on RH enterprise 3 (I think??)) I downloaded R-2.3.1.tgz from CRAN; downloaded the R.spec file cran.r-project.org/http://cran.r-project.org/bin/linux/redhat/SRPMS/ ; and ran rpmbuild -ba R.specs. Everything goes along fine until ... make[5]: Entering directory
2009 Feb 12
3
proposed simulate.glm method
I have found the "simulate" method (incorporated in some packages) very handy. As far as I can tell the only class for which simulate is actually implemented in base R is lm ... this is actually a little dangerous for a naive user who might be tempted to try simulate(X) where X is a glm fit instead, because it defaults to simulate.lm (since glm inherits from the lm class), and the
2006 Oct 17
2
plotting text with very small negative rotation hangs (PR#9301)
This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig308510A16A445880F353C5C9 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable to trigger the bug: plot(0:1,0:1) text(0.5,0.5,"abc",srt=3D-1e-9) this doesn't happen for positive, small srt, or for negative srt with magnitude greater than about 1e-8 (the example in
2002 Aug 14
1
Selective sync
I have a strange problem, apparently contradicting man pages and recent postings on --include / --exclude options. On the server host I have directories to replicate only if they match a specific pattern ( date in different formats), they might be located 1 or 2 levels down from root directory and these parent directories (but not files) have to be replicated too. I understand, that given :
2007 Dec 02
1
speeding up likelihood computation
R Users: I am trying to estimate a model of fertility behaviour using birth history data with maximum likelihood. My code works but is extremely slow (because of several for loops and my programming inefficiencies); when I use the genetic algorithm to optimize the likelihood function, it takes several days to complete (on a machine with Intel Core 2 processor [2.66GHz] and 2.99 GB RAM). Computing
2002 Mar 14
1
persp(): add second plane
Dear R-users, is it possible to add a second plane to the persp()-plot? I couldn't find any hint on that in the news archive... I'm using R.1.4.1 for Windows. Thanks in advance, Nina -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or
2002 Mar 14
1
persp(): add second plane
Dear R-users, is it possible to add a second plane to the persp()-plot? I couldn't find any hint on that in the news archive... I'm using R.1.4.1 for Windows. Thanks in advance, Nina -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or
2015 Jan 28
2
[LLVMdev] RFC: Proposal for Poison Semantics
On Tue, Jan 27, 2015 at 7:23 PM, Sanjoy Das <sanjoy at playingwithpointers.com> wrote: > Hi David, > > I spent some time thinking about poison semantics this way, but here > is where I always get stuck: > > Consider the IR fragment > > %x = zext i32 %maybe_poison to i64 > %y = lshr i64 %x 32 > %ptr = gep %global, %y > store 42 to %ptr > > If
2009 Jul 28
1
Fwd: randomized block design analysis in R
---------- Forwarded message ---------- From: alis villiyam <aalisiyan at gmail.com> Date: Mon, Jul 27, 2009 at 9:47 AM Subject: randomized block design analysis in R To: bolker at zoology.ufl.edu Dear All user Hello, I'm a student and I have some trouble with the experimental (columns-experiments) design of my project. I use a randomized block design with 4 treatments including a
2009 Nov 03
2
design matrix construction question
with the following simple data frame dd = structure(list(z = structure(c(1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L ), .Label = c("a", "b"), class = "factor"), x = c(0.3, 0.2, 0.1, 0, 0, 0, 0.2, 0.3)), .Names = c("z", "x"), row.names = c(NA, -8L), class = "data.frame") I would like know if it's possible to use model.matrix() to construct the
2007 May 16
2
citation question
I want to put the correct information into the "author" field of the DESCRIPTION file for my bbmle package, which is a modified and extended version of the mle code in the stats4 package. If I put only myself as author I feel like I'm ignoring the contribution of R-Core (and I think Peter Dalgaard in particular) in writing the original code. If I add "R Development Core
2005 Aug 16
1
Overall Legend
Hello. I am using R version 2.1.1 on Windows 2000. I am using a par(mfrow=c(2,2)) statement to produce 4 plots on one screen. I want a single horizontal legend to appear at the top of the four plots. My code is something like this: par(mfrow=c(2,2)) plot(x,y1) lines(x,y2) lines(x,y3) plot(x,z1) lines(x,z2) lines(x,z3) plot(x,t1) lines(x,t2) lines(x,t3) plot(x,w1) lines(x,w2) lines(x,w3)
2001 Aug 30
1
MCMC coding problem
Dear All, I am trying to convert some S-plus code that I have to run MCMC into R-code. The program works in S-plus, but runs slowly. I have managed to source the program into R. R recognizes that the program is there; for example, it will display the code when I type the function name at the prompt. However, the program will not run. When I try to run the program, I get the following error
2009 Aug 17
2
unnecessary braces?
the version 2 parser thinks I have unnecessary braces, but I can't find any. False positive or am I missing something? If a false positive, is there any way to work around the warning? * checking Rd files against version 2 parser ... WARNING Warning: ./man/dbetabinom.Rd:32-34: Unnecessary braces at ?{p(x) = % (C(N,x)*Beta(N-x+theta*(1-p),x+theta*p))/% Beta(theta*(1-p),theta*p)}?
2010 Jan 06
1
wiki down?
Does anyone have an address for a maintainer, or know what's going on? cheers Ben Bolker ben at bolker-lap2:~$ ping wiki.r-project.org PING econum.umh.ac.be (193.190.194.5) 56(84) bytes of data. ^C --- econum.umh.ac.be ping statistics --- 8 packets transmitted, 0 received, 100% packet loss, time 6999ms ben at bolker-lap2:~$ traceroute wiki.r-project.org traceroute to
2008 Apr 04
2
suggested minor patch for optim.R
optim ignores misspelled control parameters, so that trying to set (e.g.) "maxint=1000" in the control argument silently does nothing. The patch below (watch out for line breaks! also posted at http://www.zoo.ufl.edu/bolker/optim_patch.R , and http://www.zoo.ufl.edu/bolker/optim_new.R) adds three lines to optim.R that issue a warning if any names of elements of "control" fail
2009 Aug 10
1
model.matrix evaluation challenges
I am having difficulty with evaluation/environment construction for a formula to be evaluated by model.matrix(). Basically, I want to construct a model matrix that first looks in "newdata" for the values of the model parameters, then in "object at data". Here's what I've tried: 1. model.matrix(~f,data=c(newdata,object at data)) -- fails because something (terms()?)