search for: baddeley

...st a simple way to calculate a 'hash code' from an arbitrary R object? hash(x) should return an integer or string with the property that if hash(x) != hash(y) then x and y are not identical and the time to compute hash(x) should be quite short. Any suggestions welcome thanks Adrian Baddeley

...) and we've defined a plot method. Is it OK for us to hijack an existing class in this way, or is this a violation of some future plans/ design feature of R ? We're about to publish a book on spatstat so I would much appreciate advice if we need to change it. regards Adrian Prof Adrian Baddeley FAA University of Western Australia

...Vain attempts like matrix(factor(c(T,F,F,T), 2,2) yield a matrix of character strings representing the factor levels, not the levels themselves, while factor(matrix(c(T,F,F,T), 2,2)) converts the matrix to a logical vector of length 4 then converts the vector to a factor. Tia --- Adrian Baddeley

...uot;, sep="^M", quiet=TRUE)[2] vvv <- strsplit(ttt," ")[[1]][2] cat("spatstat version number",vvv,"\n") } but even this does not seem very safe (it makes assumptions about the format of the DESCRIPTION file). Is there a better way? thanks Adrian Baddeley

...(y1,y2)) is greater than length(x). I suggest that plot.formula be changed to recognise the situation where there is more than one response variable, and produce multiple superimposed plots in that case. (It already recognises the case where there are multiple non-response variables). ---- Adrian Baddeley, Mathematics & Statistics, University of Western Australia <http://maths.uwa.edu.au/~adrian/>

gReetings, I want to manipulate a formula object, containing the name "." so that "." is replaced by a desired (arbitrary) expression. What is a safe way to do this? Adrian Baddeley

Dear Mr. Baddeley   I just graduated from a Masters in Applied Mathematics on Jun19th. My thesis was about spatial distribution /a nalysis of some trees in a part of  the Congo Basic Forest. In my thesis I used your spatial package in R, and today I'm doing a more deeper study about how we choise the r distance...

...t;- Kcross(amacrine, "on", "off") g12 <- pcf(K12, method="d", spar=0.7) lambda2 <- summary(amacrine)$marks["off","intensity"] Oring <- eval.fv(lambda2 * g12) plot(Oring, ylab="Oring(r)") regards Adrian Baddeley

...rt = mustart, offset = offset, family = family, control = control, intercept = attr(mt, "intercept") > 0) 4: glm(y ~ x, family = poisson, data = df) -------------------------------- The code generates a segfault if the value of 'N' is greater than 16384. regards Adrian Baddeley //////////////////////////////////////////////////////////// --please do not edit the information below-- Version: platform = x86_64-unknown-linux-gnu arch = x86_64 os = linux-gnu system = x86_64, linux-gnu status = major = 2 minor = 10.1 year = 2009 month = 12 day = 14 svn rev = 5072...

...Perl installation, be sure the correct one was used he re. Otherwise, please install the missing modules. See the package INSTALL file for more information. Loading required package: RODBC Warning in odbcUpdate(channel, query, mydata, coldata[m, ], test = test, : character data 'Adrian Baddeley <Adrian.Baddeley at uwa.edu.au> and Rolf Turner <r.turner at auckland.ac.nz> with substantial contributions of code by Kasper Klitgaard Berthelsen; Abdollah Jalilian; Marie-Colette van Liesho ut; Ege Rubak; Dominic Schuhmacher; and Rasmus Waagepetersen. Addit...

Good day Im working with some coordinates, and want to create a PPP object, I found that error: > Datos=read.table("puntos_texto.txt",dec=".",sep="\t",header=T) > summary(Datos) id y x Min. : 1.0 Min. :1013581 Min. :1177842 1st Qu.: 821.2 1st Qu.:1014442 1st Qu.:1179658 Median

...ourglass-shaped region of values around 0.8. The contour plot shows two contour lines at the level 0.8 which cross each other in a figure 8. In the short term can anyone suggest how to fix the contour plot for this particular dataset?? My system: R 1.7.0 (16/4/2003) i686-pc-linux-gnu ---- Adrian Baddeley, Mathematics & Statistics, University of Western Australia <http://maths.uwa.edu.au/~adrian/>

...W <- convexhull.xy(x, y) P <- runifpoint(42, W) will compute the convex hull and generate 42 independent uniformly-distributed points in the convex hull. The result can be plotted by plot(P) and the coordinates of the simulated points can be extracted as P$x and P$y. Adrian Baddeley

...ot. It appears that we can't set the environment to NULL; should we set it to the Global environment e.g. using as.formula? Or is it wiser to save the formula as a character string in the object 'dat' and only convert it back to a formula at the last possible moment? thanks Adrian Baddeley

...R versions prior to 1.3 it seemed to work without complaint. So .. (c) what is the recommended way to suppress the warning from dpois() that the responses are not integers ? Ideally I would like dpois() to accept noninteger responses and evaluate using the gamma function.. thanks ---- Adrian Baddeley, Mathematics & Statistics, University of Western Australia <http://maths.uwa.edu.au/~adrian/> -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help&q...

Hi I'm working with the function Kest in the package SpatStat (under LINUX with R 2.1.0). In order to evaluate the statistical significance of my point pattern I'm doing 999 Montecarlo replications. The script that use the Kest function runs OK for most of the different point patterns that I have but for a particular point pattern, which have only 17 points, it runs until the 34th

...n. In the course of preparing my PBRF (performance based research funds) portfolio for the upcoming PBRF exercise here in New Zealand, I have been advised that I should provide some estimate of the number of "active users" of the spatstat package (of which I am a co-developer with Adrian Baddeley) and which I am touting as one of my contributions to the well-being of the universe. So how do I estimate the number of "active users"? Bozhemoi! I decided I'd do a survey of the r-help list. So *please* respond (VERY briefly) to this email, saying just "Yes I am an active...

...ext fragment!) I once implemented such a feature in an image processing package, so I know it's not hard. Before dusting off this ancient code I would like to learn whether there's an R package or other open source program that already does it. Any pointers would be welcome thanks Adrian Baddeley

I am trying to generate two dimensional random coordinates. For randomly distributed data I have simply used >xy<-cbind(runif(100),runif(100)) However I also want to generate coordinates that are more uniformly distributed, and coordinates that are more contagiously distributed than the above. Can anyone make any suggestions Thanks. Dr Terry Beutel Rangeland Scientist Animal

...Volume 12, Issue 01 Sturtz, Ligges, and Gelman R2WinBUGS: A Package for Running WinBUGS from R Volume 12, Issue 03 Mineo and Ruggieri A Software Tool for the Exponential Power Distribution: The normalp Package Volume 12, Issue 04 Ritz and Streibig Bioassay Analysis Using R Volume 12, Issue 05 Baddeley and Turner spatstat: An R Package for Analyzing Spatial Point Patterns Volume 12, Issue 06 Johnstone and Silverman EbayesThresh: R Programs for Empirical Bayes Thresholding Volume 12, Issue 08 Nason pinktoe: Semi-automatic Traversal of Trees Volume 14, Issue 01 Imai and Van Dyk MNP: R Package fo...