similar to: specify lattice black-and-white theme

When we call a lattice function such as xyplot, to what extent does the "data" designation cause the function to look inside the "data" for variables? In the examples below, the "subset" argument understands that "Variety" is a variable in the data. But the "scales" argument does not understand that "nitro" is a variable in the data.

Suppose we have some glm object such as: myglm <- glm( y ~ x, data=DAT) Is there an elegant way--or the "right way" within the R way of thinking--to obtain the names of the response variable, the predictor variables, and the dataset, as character strings? For instance, suppose the "right way" was to use the (currently fictitious) functions theresponse(), thepredictors(),

The following code produces a legend ("key") that mentions the unused levels of Block. library(MEMSS) xyplot(yield~nitro, subset=(Block=="I" | Block=="II"), data=Oats, group=Block, auto.key=T) and adding "drop.unused.levels=T" does not fix it. And in fact even the following does not solve the problem: xyplot(yield~nitro,

I would like to use lattice graphics to plot multiple functions (or groups or subpopulations) on the same plot region, using different line types "lty" or colors "col" to distinguish the functions (or groups). In traditional graphics, this seems straightforward: First plot all the data using 'type="n"', and subsequently execute a series of "points"

Suppose we wish to achieve the following three aims: (1) Control the aspect ratio of our plot (i.e., tweak this till it looks great) (2) Save the plot as a PDF with zero or minimal white space outside it. (3) Preserve this in code, so that in the future the exact same plot can be reproduced by simply sourcing the code. I can almost achieve (1) and (2) on my MacBook Pro by pointing and clicking,

Consider all the text that one sees on the console during an R session. Is there a way, within R, to make all this text--both the "output" and the "messages"--automatically get copied to a single text file, in addition to seeing it on the console? If I remember to save the console to a file at the end of my R session, that does it. But (1) That requires pointing and

Below is an example of a problem I encounter repeatedly when I write functions. A call works at the command line, but it does not work inside a function, even when I have made sure that all required variables are available within the function. The only way I know to solve it is to make the required variable global, which of course is dangerous. What is the elegant or appropriate way to solve

Often it is useful to keep a "codebook" to document the contents of a dataset. (By "dataset" I mean a rectangular structure such as a dataframe.) The codebook has as many rows as the dataset has columns (variables, fields). The columns (fields) of the codebook may include: ? variable name ? type (character, factor, integer, etc) ? variable label

I want to put the "plus or minus" symbol into a character variable, so that this can be turned into a factor and be displayed in the "strip" of a faceted ggplot2 plot. A very nice solution, thanks to Professor Ripley's post of Nov 16, 2008; 3:13pm, visible at http://r.789695.n4.nabble.com/Symbols-to-use-in-text-td874239.html and subsequently

The .Renviron and .First functions do not seem to work the same way on a Mac OS 10.4 as on a Windows XP machine. From working in Windows I am used to creating a new directory for each data analysis project. In the new directory I place First, an .Renviron file consisting of the following text: R_HISTFILE="history.txt" R_HISTSIZE=1000000 Second, an .RData file containing a .First

On my linux workstation I have a nice, very little project in a directory called "mystuff" I installed "mystuff" into site-library with R CMD build, R CMD check and R CMD install. This was all with the file mystuff.tar.gz. Now I want to install "mystuff" on my windows workstation. Can I use the same file mystuff.tar.gz. Do I need to do something different with R

I am trying to get data out of a database to my rhtml file. The files look like this: Model ------- mystuff.rb class Mystuff < ActiveRecord::Base set_table_name "mytable" set_primary_key "id" end Controllers -------------- mystuff_controller.rb require ''Mystuff'' class MystuffController < ApplicationController def read @me =

Hello As I'm beginning to write functions, I decided to have my personnal R library named MyStuff located in /home/fred/R.Lib/MyStuff/ The library file itself is at /home/fred/R.Lib/MyStuff/R/MyStuff evrything seems ok since > library() gives : Packages in library `/usr/lib/R/library': KernSmooth Functions for kernel smoothing for Wand &

Seems that any program that has a default data directory, or previously selected directory preserved, has the directory duplicated/nested: That data is in c:\mystuff\mydata It is shown as c:\mystuff\mydata\mydata The files appear and maybe can be read. Any attempt to write produces an error (obviously, there is no such directory). Some programs will crash/abort wine trying to navigate this

Hello, I'm trying to fill CID data into the astdb using AsteriskWin32's asterisk.exe, to no avail: The batch file stops after the first line, and just waits: ---------------------------------------- rem c:\cygroot\mystuff>import.bat rem rem c:\cygroot\mystuff>C:\cygroot\bin\asterisk.exe -rx 'database put cidname 123 "My cellphone"' rem rem Asterisk module

All, The code below produces a color 3D graph. I'd like to make it black and white shading. I tried setting col.regions to FALSE but this just made it completely white. I want the graph to look exactly as is, except black (or grey) and white shading. Is this possible? Cheers, David p.list = c(.01, .1, .25, .5, .75, .9) cov.list = c(.2, .1, .05) ### leave out .01 X = rep(p.list, 3)

The following: library(grid) grid.newpage() example(Grid) has the yaxis label partly cut off and the x axis label does not appear at all. Also ?grid.multipanel in that example brings up documentation for grid-internal but this would not seem to be internal if its part of an example. I am using: > R.version.string # Windows XP [1] "R version 2.2.0, 2005-09-20"

I'm looking at scripting a mechanism to delete a mailbox, which is easy with 'doveadm mailbox delete' -- however it gets complicated when there are children of arbitrary depth, for example, I may have this: restored.daily1.INBOX restored.daily1.Sent restored.daily1.Mystuff restored.daily1.Mystuff.foo I would like to delete the 'restored' mailbox and all its children (and

I am trying to fetch a single dir using the following command but all I get is a empty dir: rsync -av www.myServer.com::myStuff --include=myDir --exclude=* . Here is the rsync output: receiving file list ... done myDir/ ./ wrote 119 bytes read 392 bytes 92.91 bytes/sec total size is 0 speedup is 0.00 The command looks simple and straight forward but somehow I am not getting the expected

Dear R-users, I am trying to create a multipanel scatter plot which displays weighted regression lines for each subgroup. I am having diffuculty figuring out how the Trellis multipanel plotting functions work, in general. Does someone know where there are some beginners examples on how to create and use panel.xxx functions in conjunction with the xyplot functions? Back to the matter at hand