similar to: New user: Custom probability distribution

The default initialization for slots of class "factor" and "data.frame" gives NULL. This seems odd, since those slots can't ever be set to NULL by the user. I would expect zero-length instances of factor and data.frame. Here is an example: setClass("FOO", representation(a="factor", b="data.frame", c="numeric")) [1] "FOO"

R-devel, I'm interested in looking at some examples of existing R packages that rely heavily on S4 classes to get a feel for varying styles and package organization techniques. Could you recommend any packages that might serve as a good starting point? Thanks in advance, Jeff

R-devel, I'm interested in looking at some examples of existing R packages that rely heavily on S4 classes to get a feel for varying styles and package organization techniques. Could you recommend any packages that might serve as a good starting point? Thanks in advance, Jeff

Doese anyone know a R function to find the median of a gamma distribution? [[alternative HTML version deleted]]

Hello all, (First of all, I'd like to thank all who replied to my previous question. I have never encountered such a helpful community before. Thanks for making a R so welcoming.) To calculate a quantile for normal distributions, one simply uses qnorm(1-a). But if I would want to do the same for a t-test function, how would I go about doing that? Is there a simple way to do it? (Yes, I

Hi I am looking for an implementation (or alternative to) Mallow's distance or the Earth Mover's distance to compare distributions or unnormalized distributions (signatures). Is there an implementation in R or can somebody recommend an alternative? Thanks Rainer -- Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany) Centre of

After some reorganization, we would like to announce the availability on CRAN of a new version (1.6) of our package "distr" as well as the availabilty on CRAN of the new packages "distrEx", "distrSim", "distrTEst", "RandVar". ----------------------------------------------------------------------------------------- Changes from 1.5 to 1.6 -[former

After some reorganization, we would like to announce the availability on CRAN of a new version (1.6) of our package "distr" as well as the availabilty on CRAN of the new packages "distrEx", "distrSim", "distrTEst", "RandVar". ----------------------------------------------------------------------------------------- Changes from 1.5 to 1.6 -[former

Hello, I want to know if there are some functions or packages to solve differential and integral equation using R. Thanks. Shao chunxuan. [[alternative HTML version deleted]]

Hi R-devels, recently, we have seen a new warning by "R CMD check" appearing for the devel-version of our package distrEx available on r-forge, e.g. as *|install.packages("/distrEx/",repos="http://r-forge.r-project.org")|* Here is the warning: %--------------------- [...snip ...] * checking for unstated dependencies in R code ... WARNING .get_S4_methods_list():

Hi I am performing an analysis of variance with two factors, each with two levels. I have differing numbers of observations in each of the four combinations, but all four combinations *are* present (2 of the factor combinations have 3 observations, 1 has 4 and 1 has 5) I have used both anova(aov(...)) and anova(lm(...)) in R and it gave the same result - as expected. I then plugged this into

I'm getting this problem when I try to open a video file. An out-of-bounds memory access (access violation) occurred in module 'wined3d'......reading address 00000030. Is their anything that can be done?

I am trying to run a Windows app my company uses in-house in Wine. It installs ok but when I run it I get this: Code: err:ole:CoGetClassObject class {96749377-3391-11d2-9ee3-00c04f797396} not registered err:ole:CoGetClassObject class {96749377-3391-11d2-9ee3-00c04f797396} not registered err:ole:create_server class {96749377-3391-11d2-9ee3-00c04f797396} not registered err:ole:CoGetClassObject

I had a working Rails setup using RVM on Ubuntu 11.10 with /home on a separate partition. I installed Ubuntu 12.04 (Alpha) on the root partition, leaving the home partition unchanged. I now find that some things don''t work, I think due to the fact that the system has been updated and versions of libraries have changed. For example I get: $ rails c

I'm having trouble using the read.mtp function in the foreign package to import datasets from minitab (.mtw) format. Specifically, each file I try to import fails to load any data beyond a header row stating the version of Minitab that saved the dataset. I get this error: incomplete final line found by readtableHeader on 'income.mtw' The dataset appears to be complete (ie, using

I recently downloaded R for Windows, running on Win XP. I'm trying to create a perspective plot but not having any luck after reading the R manual and several examples found on the Internet. I have a 100 x 100 matrix of Z data as a tab-delimited text file exported from Minitab. I read this in to R using read.delim; this seemed to go ok. I created X and Y using seq() to get 100 divisions

I have read the R online help and wiki and I cannot seem to get something to work the way I need it to. I want to create a new data frame from an subset of an existing data frame which has no reference to the original superset. If you following this example, what I am trying to do may make more sense. I have a file with values like this: shirt,size,40 shirt,color,10 shirt,length,10

Hi R-help. I am trying to run a linear mixed model with nested factors with either lme or lmer and I am having no luck obtaining the same results as Minitab. Here is Minitab's code: MTB > GLM 'count' = site year replicate(site year) site*year; SUBC> Random 'year' 'replicate'; Can you tell me how to code this in R? The settings are typeII, Tukey,

Didn''t know what else to call this subject, sorry. Anyway this is more a general discovery question then a coding one. Is it possible (and I already know it should be) to create forms where depending on a particular choice in one select tag, one or another select tags would be presented in the form. As an example, a shopping site , where a dropdown has options of: 1-Men''s shoes

Dear R list, I have been trying to do a linear model, extracting the effect of a covariate.... and the results do not match, when I do it with other programs (e.g. minitab).... so it is obvious that I was doing something wrong. Whan I do it with minitab, I have this results: (sector is a factor and depth is the covariate): Source DF Seq SS Adj SS Adj MS F P