search for: chickwt

I'm not sure if this is the right mailing list. My apologies if I'm sending the question to the wrong mailing list. (The r-packages list moderator suggested using the R-help list.) My question is about the "chickwts" data in the datasets package. According to help(chickwts), the source of the data is ?Anonymous (1948) Biometrika, 35, 214. But this reference seems irrelevant. (See http://www.jstor.org/stable/i315414.) The help document also gives "McNeil, D. R. (1977) Interactive Data Analysis. Ne...

Hi! I just quasi-learned how to use R and I'm trying to change the feed from horsebean, linseed, etc to 1, 2, 3, etc The dataset I'm practicing on is pre-loaded in R data(chickwts) chickwts Any help is much appreciated!! Thank you!! -- View this message in context: http://www.nabble.com/changing-variables-in-a-dataset-tp23407765p23407765.html Sent from the R help mailing list archive at Nabble.com.

...thing obvious. Best regards, Arni On Wed, 8 Sep 2010, Simon Urbanek wrote: > wrong address - did you mean R-devel? > Simon > > > > On Sep 6, 2010, at 8:35 AM, Arni Magnusson wrote: > >> Bug or not, I was surprised by this behavior: >> >> x <- tapply(chickwts$weight, chickwts$feed, median) >> x # array ... I'd like to convert to vector with named elements >> drop(x) # what, still an array? >> drop(as.matrix(x)) # this works >> drop(t(x)) # this works >> >> I was expecting drop(x) to ret...

Hello, I notice that when I do Levene's test to test equality of variances across levels of a factor, I get different answers in R and SPSS 16. e.g.: For the chickwts data, in R, levene.test(weight, feed) gives F=0.7493, p=0.5896. SPSS 16 gives F=0.987, p=0.432 Why this difference? Which one should I believe? (I would like to believe R :) Ravi -- View this message in context: http://n4.nabble.com/Difference-in-Levene-s-test-between-R-and-SPSS-tp1555725p1...

I came across the package 'ineq' that computes a variety of inequality measures (e.g. gini, theil etc). I want to compute the Theil index (racial segregation) and decompose the total into sub-components (by geog levels). I think the package doesn't report the decomposition (correct me if I'm wrong). Just wonder is that available elsewhere? K.

Hola a todos, me gustaría realizar una consulta asociada a la generación de valores genéticos del pedigreemm en R. Primero generé el archivo de pedigree incluyendo los parentales para posteriormente estimar la varianza aditiva y los valores genéticos para cada individuo, relacionando los individuos por medio de la matriz de parentesco. Me da todo perfecto, el complemento pedigreemm trabaja muy

...Data austres Quarterly Time Series of the Number of Australian Residents beaver1 (beavers) Body Temperature Series of Two Beavers beaver2 (beavers) Body Temperature Series of Two Beavers cars Speed and Stopping Distances of Cars chickwts Chicken Weights by Feed Type co2 Mauna Loa Atmospheric CO2 Concentration discoveries Yearly Numbers of Important Discoveries esoph Smoking, Alcohol and (O)esophageal Cancer euro Conversion Rates of Euro Currencies...

...sity}} can be used to compute the statistical mode of a continuous distribution. } \examples{ ## Different location statistics fw <- faithful$waiting hist(fw) barplot(table(fw)) mean(fw) median(fw) statmode(fw) plot(density(fw)) with(density(fw), x[which.max(y)]) ## Different classes statmode(chickwts$feed) # factor statmode(volcano) # matrix statmode(discoveries) # ts statmode(mtcars) # data frame ## Multiple modes table(mtcars$carb) statmode(mtcars$carb) statmode(mtcars$carb, TRUE) statmode(mtcars, TRUE) } \keyword{univar}

...ary/base/data/anscombe.R action: create D: file: /usr/local/lib/R/library/base/data/attenu.R action: create D: file: /usr/local/lib/R/library/base/data/attitude.R action: create D: file: /usr/local/lib/R/library/base/data/cars.R action: create D: file: /usr/local/lib/R/library/base/data/chickwts.R action: create D: file: /usr/local/lib/R/library/base/data/co2.R action: create D: file: /usr/local/lib/R/library/base/data/discoveries.R action: create D: file: /usr/local/lib/R/library/base/data/esoph.R action: create D: file: /usr/local/lib/R/library/base/data/euro.R action: creat...

...html latex example character text html latex example charmatch text html latex example chartr text html latex example check.options text html latex example chickwts text html latex example chol text html latex example chol2inv text html latex example chull text html latex example class t...