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On Fri, May 30, 2008 at 3:25 PM, Kingsford Jones <kingsfordjones at gmail.com> wrote: > Asymptotically, AIC is equivalent to leave-one-out > cross validation, Mallow's Cp, and some other methods for model > selection. I forgot to qualify...
R <- matrix(runif(10000), ncol=100) hth, Kingsford Jones On Fri, Aug 28, 2009 at 7:26 PM, Ning Ma<pningma at gmail.com> wrote: > Hi, > > How can I generate a random 100x100 correlation matrix, R={r_ij}, > where about...
On Wed, Apr 30, 2008 at 4:33 PM, Duncan Murdoch <murdoch at stats.uwo.ca> wrote: > On 30/04/2008 6:59 PM, esmail bonakdarian wrote: <snip> > > Is there a good collection of hints/suggestions for R language idoms...
Luc, Note this part of the output: > Number of Observations: 352 > Number of Groups: > nest birdid %in% nest age %in% birdid %in% nest > 9 84 352 > hth, Kingsford Jones > Both age and age2 have 266 df here and STATUS even...
RSiteSearch('trpaths') will lead you to potential solutions... On Fri, Feb 27, 2009 at 7:18 PM, <rkevinburton at charter.net> wrote: > I am running an R script with Tinn-R (2.2.0.1) and I get the error...
If 'obs' are the true values and 'pred' are the predicted values, it's just rmse <- function(obs, pred) sqrt(mean((obs-pred)^2)) hth, Kingsford Jones On Fri, Apr 10, 2009 at 10:20 AM, gianni lavaredo <gianni.lavaredo...
did you install and load the 'ctv' package? install.packages('ctv') library('ctv') then try your code... Kingsford Jones On Sat, Jan 10, 2009 at 1:00 PM, oscar linares <winsaam at gmail.com> wrote: > Dear Rxperts, > > Using R 2...
On Tue, Oct 20, 2009 at 5:09 AM, r-quantide <r at quantide.com> wrote: [snip] > . ? ? ? ? Is there any methods/functions to obtain the variance components > for the station factor too? (please, give me some references, at least.) Pinheiro...
see https://stat.ethz.ch/pipermail/r-help/2008-January/151694.html hth, Kingsford Jones On Wed, Mar 4, 2009 at 7:30 PM, Fuchs Ira <irafuchs at gmail.com> wrote: > How can I print the definition of a function...
Hi Dajiang, try plot(1, main=expression(beta[1])) and, more generally, see ?plotmath or demo(plotmath) Kingsford Jones On Sun, Jun 7, 2009 at 4:43 PM, Dajiang Jeff Liu<dajiang.liu at gmail.com> wrote: > Dear All, > I...
Assuming you are referring to ESRI shapefiles, options can be found in the following packages: maptools, rgdal, and shapefiles See the Spatial Task View for more info: http://cran.r-project.org/web/views/Spatial.html hth, Kingsford On Tue...
On Wed, Mar 4, 2009 at 2:34 PM, Manli Yan <manliyanrhelp at gmail.com> wrote: > ?Hi: > ?I need to create many variables at one time,how to do this in R? > ?for eg ,X1,X2.......X100? It depends what...
On Thu, Feb 12, 2009 at 3:12 PM, Johannes Huesing <johannes at huesing.name> wrote: > Last time I tried, rseek.org yielded no results when searching for "inferno". ...although, if you hit the 'Support Lists' tab it finds the...
try: 'x' %in% colnames(df) hth, Kingsford On Mon, Jun 22, 2009 at 9:17 PM, R_help Help<rhelpacc at gmail.com> wrote: > Hi, > > I have a matrix or data.frame (df). When I would like to check if...
On Mon, Sep 7, 2009 at 12:42 AM, Gundala Viswanath<gundalav at gmail.com> wrote: > How do people usually use the result of density function (e.g. dnorm)? > Especially when its value can be greater than 1. > > What do...
On Thu, Jul 29, 2010 at 10:07 AM, Javier Martinez <javi.martinez.lopez at gmail.com> wrote: > The question is, can I really use a > mixed model if I only have two cases per group? In general, yes. E...
try: example(TukeyHSD) hth, Kingsford Jones On Thu, Feb 19, 2009 at 9:51 AM, Saeed Ahmadi <ahmadi_saeed at yahoo.com> wrote: > > Hi, > > I have a basic and simple question on how to code pairwise (multiple) mean > compariosn between...
Can't give more specific advice without more information (see the posting guide), but I suspect you want to use nlme::lme, specifying a weights argument to adjust for the heterogeneity. Kingsford On Wed, Jul 21, 2010 at 11:10...
The attachment didn't come through, but try: example(filled.countour) #or library(lattice) example(levelplot) hth, Kingsford Jones On Tue, Apr 21, 2009 at 9:46 PM, <mauede at alice.it> wrote: > I wonder whether it is possible ?in...
Does cex.axis not work in that it reduces the size for both x and y axes? If that's the case try calling plot with axes=FALSE, and then add axes seperately with the axis function. Kingsford Jones On...
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