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Hi, is there a grayscale setting for lattice plots? I like the default color settings. I also like the settings that are available for setting black and white with something like this: --8<---------------cut here---------------start------------->8--- ltheme <- canonical.theme(color = FALSE) ## in-built B&W theme ltheme$strip.background$col <- "transparent" ##

Hi, what is the recommended way of adding a strip to a lattice plot? In the example below I would like to add the value of mean(y) to a new strip.: --8<---------------cut here---------------start------------->8--- library(lattice) ## Small sample data set: p0 <- xyplot(uptake ~ Type | Treatment, data = CO2) p1 <- update(p0, panel = function(x, y, ...) {

Hi, I would like to add confidence intervales to an ANCOVA with 2 covariates when using xyplot. What would be a good way of accomplishing this? --8<---------------cut here---------------start------------->8--- rm(list = ls(all = TRUE)) rm(list = c(ls())) library(lattice) ## 1. generate data random <- rnorm(200) y <- abs(random) x1.cont <- abs(random) x2.fac <-

...ver... What happens? Regards, Jos? Augusto Jr. University of S?o Paulo ------------------------------ Message: 5 Date: Sun, 04 Nov 2007 15:02:13 +0100 From: Patrick Drechsler Subject: Re: [R] Where to ask general stats questions? To: r-help@stat.math.ethz.ch Message-ID: <87mytu9kii.fsf@pdrechsler.de> Content-Type: text/plain; charset=us-ascii francogrex writes: > But does anyone know of a list/forum where we can ask help/questions > regarding general statistics problems (and where solutions are > offered possibly in the R language) . You could try the newsgroup sci.stat.math...

Hi, can anybody tell me how to contact the maintainer of the "concord" package? The address given in the help file is not valid anymore. ,---- | > help(package=concord) | | Information f?r Paket 'concord' | | Description: | | Package: concord | Version: 1.4-2 | Date: 2005-05-10 | Title: Concordance and reliability | Author: Jim Lemon

Hi, what would be a good way of enhancing the ancova function from the HH package when using a 2 factor ANCOVA? The current behaviour for the "ancova" function from package HH is: ---------------------------------------------- | P1 || P1 || P3 || P4 | | PS | <- the lattice strip ---------------------------------------------- | x|| x ||x ||x | |

Hi, I would like to change font sizes (more generally the cex) in plots produced by the function "interaction2wt" of the "HH" package. Here is an example (from the interaction2wt example) of what I have tried: --8<---------------cut here---------------start------------->8--- rm(list = ls(all = TRUE)) rm(list = c(ls())) library("HH") ## From the example:

Hi, is there an R function to convert unixtime to one of the R time formats (using chron or POSIXct)? Example data: unixtime year month day hour 1183377301 2007 7 2 13 I would like to only use the first column. If such a function does not exist: What would be a good input format for R (I could parse the input using AWK or other GNU/Linux tools). TIA,

Hi, for testing if the slope of experimental data differs from a given slope I'm using the function "test_regression_against_slope" (see below). I am now confronted with the problem that I have data which requires a modelII regression (also called reduced major axes regression (RMA) or geometric mean regression). For this I use the function "modelII" (see below). What

Hi, I am performing a two-way ANOVA (2 factors with 4 and 5 levels, respectively). If I'm interpreting the output of summary correctly, then the interaction between both factors is significant: ,---- | ## Two-way ANOVA with possible interaction: | > model1 <- aov(log(y) ~ xForce*xVel, data=mydataset) | | > summary(model1) | Df Sum Sq Mean Sq F value Pr(>F) |