similar to: reference for round

Hi, I am getting some strange results using round - it seems that it depends if the number before the decimal point is odd or even .... For example: > round(1.5)[1] 2> round(2.5)[1] 2 While i would expect that round(2.5) be 3 and not 2. Do you have any explanation for that? I really appreciate your input, Monica

Hi, I have been trying to work with error terms given back from aov to make confidence intervals. However, the numbers seem to be incorrect. If there is more than one term in the ANOVA then the error terms can be inflated by the number of factors in the extra terms. The F's are correct so it is right back to the SS. I was wondering if this is standard practice for stats programs or

Dear all, I would be glad if someone could tell me if Tukey HSD (function of stats library) accept the NA values and could correct the unbalanced design (different number of sample in each group) Thanks for help Alice Le Bars

Dear all, This is a pure statistical question, not necessarly related to R. I could not find it in literature. Suppose I'm intersted in a parameter rho, say, equal to: r=beta1/beta2, where beta1 and beta2 come from a linear model y=beta0+beta1X1+beta2X2+.... Fitting the model I can get the (biased) estimate of r=b1/b2, where b1 and b2 are the estimates in the regression model; I can get the

Dear colleague: Actually that is what is done. When using the z-test between proportions in two different groups, or using chi-squared to test the null hypothesis of equal proportions of two or more groups, the null hypothesis is that H0: p1=p2=p3.....=p where this p is the pooled proportion, the proportion in the summed groups = n1+n2+n3+..../N1+N2+N3.... in the z-test between two

Hi, i am working on a data set with EDA. That includes QQ-Plots of residuals vs expected normal distribution. What puzzles me is that the range of ordinate and abscissae is so different: while the theoretical quantiles range from [-2, 2] the sample quantiles on the ordinate do extent from [-20, 50]. Quite obviously some kind of transformation is done. Although i intensively RTFM i could not

Is there a "canned" function in R for finding the standard error of the mean? I have tried > sem <- function(x) c(mean =mean(x), + SEM = stdev(x)/sqrt(length(x))) > sem(pnet.lai) Error in sem(pnet.lai) : couldn't find function "stdev" It looks like there is no stdev function in R Thanks, Kirk Kirk R. Wythers email: kwythers at umn.edu University of

Hi I try to implement a simple 2-factorial repeated-measure anova in the lme framework and would be grateful for a short feedback -my dependent var is a reaction-time (rt), -as dependent var I have -the age-group (0/1) the subject belongs to (so this is a between-subject factor), and -two WITHIN experimental conditions, one (angle) having 5, the other 3 (hands) factor-levels;

Could someone please point me to a source for the archives of this news group after June 21. I was subscribed to a digest version, but it stopped arriving after that date. Anne ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Anne E. York National Marine Mammal Laboratory Seattle WA 98115-0070 USA e-mail: anne.york at noaa.gov Voice: +1 206-526-4039 Fax: +1 206-526-6615

dum is a simple data frame transferred to Splus using the dump() command in Splus and the source() in R. All fields are numeric. There are no missing data. The data frame looks like it is should: > apply(dum,2,mode) yrcl sland s02 s234 "numeric" "numeric" "numeric" "numeric" > apply(dum,2,is.vector) yrcl sland s02 s234

Here is a simple example of what I would like to do: Given a data frame foo with variables x and fn. Suppose fn is a vector of characters which correspond to names of previously defined functions which have only one argument. I would like a vector returned where fn is applied to x foo <- data.frame(x=c(2,5,7), fn = letters[c(6,7,6)]) foo$fn <- as.character(foo$fn) "f" <-

Hi, I was setting up a new system for testing Dovecot 1.0. My old one is using 0.99 and was set up quite a time ago, so I had to consult the documentation. I needed several attempts until it worked and that was because the designated maildir directory /server/mail/jrg/Maildir was completely empty. Upon login the server exited and wrote the following to the log: POP3(jrg): Ambiguous mail location

Could someone suggest a mail reader that will parse a digest from r-help into separate messages? Preferably, this reader would allow replies or forwards of separate messages. I use pine on a Sun running SunOS 5.7. If there were an add-on to pine that would accomplish this task, that would be even better. Anne ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Anne E. York National Marine Mammal Laboratory

I am comparing the Splus and R fits of a simple glm. In the following, foo is generated from rbinom with size = 20 p = 0.5. The coefficients (and SE's0 of the fitted models are the same, but the estimated deviances are quite different. Could someone please tell me why they are so different? I am using R version 1.3.1 and Splus 2000 release 3 on windows 2000. ++++++++++++++++++++++ foo

I''m using a plugin which adds a method to ActiveRecord::Base http://similetimelinerailshelper.googlecode.com/svn/trunk/simile_timeline/ This adds an "acts_as" type declaration to the Models, via the file in vendor/plugins/simile_timeline/lib/simile_timeline.rb Rails is working with these declarations, and they are being used successfully in ''regular

You must create a output filter. Edit /etc/printcap and add your client printer like this: ... PC-PRINTER:\ :sd=/var/spool/lpd/PP01:\ :mx#0:\ :lp=/dev/null:\ :if=/var/spool/lpd/Filter/PP01:\ :sh: ... Adjust the printcap parameters as needed (spool directory, directory to find the filter script). Make sure the lpd can access the directory. Consult your manual. Now create the filter

Is there a way to put a legend on an xyplot -- eg, something akin to the key function? Or, is there a way to get the R legend function to work on a lattice plot? To the people who have done the work on lattice and grid: Thanks for making lattice. I'm finding it very useful. Anne ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Anne E. York National Marine Mammal Laboratory Seattle WA 98115-0070 USA

?plotmath produces the helpscreen for plotmath. Why does apropos("plotmath") return only character(0)? > apropos("plotmath") character(0) > > version _ platform i386-pc-mingw32 arch x86 os Win32 system x86, Win32 status major 1 minor 4.1 year 2002

Hello all, I am currently using NIS for authentication with clear text passwords. We would like to move to password encryption. Any ideas whether NIS would support encrypted password on samba 3.X ? if not what would be my other options. Sheikji Nazirudeen IT Analyst Syracuse University 315-443-1207

I've been trying to download from CRAN the floppy versions of the R source files: R-release-1.tar.gz, R-release-2.tar.gz I tried the servers in Seattle, Madison, and the Vienna Technical University. In each case, the file(s) were unavailable. Anne ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Anne E. York National Marine Mammal Laboratory Seattle WA 98115-0070 USA e-mail: anne.york at noaa.gov