search for: piepho

Hi, I am trying to parameterize the following mixed model (following Piepho and Ogutu 2002), to test for a trend over time, using multiple sites: y[ij]=mu+b[j]+a[i]+w[j]*(beta +t[i])+c[ij] where: y[ij]= a response variable at site i and year j mu = fixed intercept Beta=fixed slope w[j]=constant representing the jth year (covariate) b[j]=random effect of jth year, iid N(...

Hallo, we are trying to extend the R package multcompView in agreement with the author Hans-Peter Piepho. The function multcompLetters implements so far a heuristic. We would like to add a function that implements an exact algorithm and returns a provable optimum result. This algorithm has been implemented in Objective Caml and we would like to reuse this code. We wrote an R function that acce...

If I change the background color of a plot, with par(bg="red") for example, I get a plot with a red background when I use the postscript or X11 devices. With the png or jpeg devices, the background is white. Is this the intended behavior, or a bug? Is there anyway to get a non-white background with the png device? I'm using R-1.1.0 on Linux.

I'd like to put a degree symbol in the title of a plot. Something like: plot(1,main=expression("Data at " * 45 * degree * " North")) That works fine, but I like the 45 to be the value of a variable, instead of a constant, an in: lat <- 45 plot(1,main=expression("Data at " * lat * degree * " North")) But this doesn't work of course, the graph

I'm trying to get a plot with wide lines that don't have rounded end caps. You can see the effect quite clearly with a plot like this: plot(0:1) lines(c(1.5,1.5),c(0,.5),lwd=20,col="red") lines(c(1.5,1.5),c(.5,1),lwd=20,col="green") abline(h=0) abline(h=0.5) abline(h=1) The colored lines should be between the horizontal lines, but because of the rounded end caps,

Does anyone know of a module for R to access NetCDF datasets? I remember reading about a module for Splus, but I can't seem to find anything on CRAN. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the

I have a non-PS printer setup to print under linux using ghostscript as a filter. This printer has two paper trays, one has letter paper, the other tabloid size paper. If I print from a program that uses a PPD file to configure the printer, like StarOffice or The Gimp, I can select the paper size from a nifty list. If I select letter size, the printer print with paper from the letter tray. If

Hi, I would like to ask how the paste(S1, S2, sep="") function internally works. Are the two stings copied to a new String? I have a program where successively strings are build up. First the program calls an external function and depending on the result it builds up strings to visualize the result. The external function is really fast, also for huge input data. But the

I've been having a problem when printing plots to a HP DeskJet 2500C printer. This printer, like most inkjet printers, has a large minimum bottom margin. For most HP inkjet printers, the bottom 1/2" (left 1/2" inch for landscape) of the page can't be printed too. The postscript device in R has a default of 1/4" margins between the paper edge and the plotting area. This

I'd like to make some polar plots with R, but I can't seem to find anything designed to help with that. Is there anyway to get a real polar mode, where instead of x and y you have r and theta? How about a way to draw a circle? -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send