similar to: Watson test

Hi all, I would like to test the relevance of a vector field (i.e. if the vectors are organized or not). To do so, I would like to use an autocorrelation test, so that I have two questions: - is the Watson test applicable to that perpuse ? - is the kuiper test applicable to that purpuse ? Regards ------------------------------------------------ Emmanuel Poizot Cnam/Intechmer B.P. 324 50103

Hi, I'm a newbie in R world. I would like to develop an application that extract contour from objects of an image. - Is R able to manage raster data (i.e., images) ? - Is there a specific package in change of such management ? I'm specificaly interest in the Canny filter. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Emmanuel POIZOT CNAM/INTECHMER B.P. 324 50103 Cherbourg Cedex T?l : 33 (0)2 33

Hi all, I'm writing a program in C++ in witch there should be some graphical outputs. To do so, I would like to use R with the command : R --no-save < cmdfile.R , where I put the R graphic commands in the cmdfile.R file. I call R from my C++ code but as R seems to run in batch mode, there are no graphical outputs! How can I do to get the graphics outputs ? -- Sincerely

Hello, I'd writen a function in R composed of multiples lines. How can I do to modify or delete on of the line of my function ? -- Sincerely ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~ Emmanuel POIZOT ~ CNAM/INTECHMER ~ B.P. 324 ~ 50103 CHERBOURG CEDEX ~ T?l : (33) 233 887 342 ~ Fax : (33) 233 887 339 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Dear all, I want make correction depth of a bathymetric data set. To do so, I have the depth data set sample every second (a depth at each second) in one hand, and in the other hand, I have a tide variation level data set sample every 250 ms. The time register in each data sets (tide and bathymetric) is express in seconds followinf this format : hh:mm:ss.ss I would like to rectify the depth

I've got two set of data : 22.45 21.56 20.48 19.59 21.52 = A and 22.15 21.98 20.42 20.58 19.61 = B I perform a wilcox.test on this two set wilcox.test(A, B) and I'd this answer: Wilcoxon rank sum test data: A and B W = 12, p-value = 1 alternative hypothesis: true mu is not equal to 0 Should I interpret that there is no difference between the two sets ? -- Cordialement

Dear all, I have a time serie dataset such as the following with data acquired every 15 minutes: Date Heure Profondeur Temp?rature Salinit? Turbidit? Chloration 1 2012-07-06 08:47:22 -0.144 22.469 0.011 0.000 0 2 2012-07-06 09:02:21 -0.147 22.476 0.011 0.000 0 3 2012-07-06 09:17:21 -0.139 22.498 0.011 19.323 0 4 2012-07-06

Dear all, I facing pbs using RODBC library. I'm working on a Linux (Ubuntu Gutsy) os, with R version 2.5.1. I've got Postgresql 8.2.5 installed with the odbc-postgresql package. I try to connect in a R session to a postgresql database using: odbcConnect(dsn="thedatabasename",uid="theuser",pwf="thepasswd",case="postgresql") I get a message error,

Hello, I want to print points having value on 3 variables in a triangle (ternary diagram). How can I di this with R ? -- Cordialement ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~ Emmanuel POIZOT ~ CNAM/INTECHMER ~ B.P. 324 ~ 50103 CHERBOURG CEDEX ~ T?l : (33) 233 887 342 ~ Fax : (33) 233 887 339 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Dear all, I would like to use GeoXp package under Ubuntu Jaunty. I did install the required package GeoXp, for which I had to install before rgdal package. So when done, I want to load the library (library(GepXp), I got the error when GeoXP want to load rgdal package: > library(sp) > library(rgdal) Error in fun(...) : GDAL Error 1: libgrass_I.so: Ne peut ouvrir le fichier

Dear all, I tried to install gstat package and add the following compilation error : ------------------------> * Installing *source* package 'gstat' ... creating cache ./config.cache checking for gcc... gcc checking whether the C compiler (gcc ) works... yes checking whether the C compiler (gcc ) is a cross-compiler... no checking whether we are using GNU C... yes checking whether

Hello, I install R under Mandrake Linux 8.2. R itself work fine, but I had an error to install packages, i.e. fields, geoR and geoRglm : $: R CMD INSTALL geoRglm_0.4-3.tar.gz Installing *source* package `geoRglm' ... libs gcc-3.0.1 -I/usr/lib/R/include -I/usr/local/include -mieee-fp -D__NO_MATH_INLINES -fPIC -O3 -fomit-frame-pointer -pipe -mcpu=pentiumpro -march=i586 -fno-fast-math

Hello, I install R under Mandrake Linux 8.2. R itself work fine, but I had an error to install packages, i.e. fields, geoR and geoRglm : $: R CMD INSTALL geoRglm_0.4-3.tar.gz Installing *source* package `geoRglm' ... libs gcc-3.0.1 -I/usr/lib/R/include -I/usr/local/include -mieee-fp -D__NO_MATH_INLINES -fPIC -O3 -fomit-frame-pointer -pipe -mcpu=pentiumpro -march=i586 -fno-fast-math

Dear all, I did post a message about problems on installing a package (gstat) which ends with a compilation error: ** libs gcc -I/usr/lib/R/include -mieee-with-inexact -fPIC -g -O2 -c block.c -o block.o gcc -I/usr/lib/R/include -mieee-with-inexact -fPIC -g -O2 -c chfactor.c -o chfactor.o gcc -I/usr/lib/R/include -mieee-with-inexact -fPIC -g -O2 -c copy.c -o copy.o gcc

Hi, I would like to know if there is a way to change a vector of arbitrary size to make it fits the nearest upper size multiple of a power of 2. -- Cordialy ---------------------------------------- Emmanuel POIZOT Cnam/Intechmer Digue de Collignon 50110 Tourlaville T?l : (33)(0)2 33 88 73 42 Fax : (33)(0)2 33 88 73 39 -----------------------------------------

Hi, I would like to eliminate the trend of a set localised (with x an y) data. I try to fit a linear model to the data: mod.01 <- lm(ff~x+y) I've got so a model. My question is how can I do to subtract the model from the initial f data ? -- Cordialement ---------------------------------------- Emmanuel POIZOT Cnam/Intechmer Digue de Collignon 50110 Tourlaville T?l : (33)(0)2 33 88 73 42

Hello all, I have been a R user for about a year now, running on a MS Windows machine. I am in the process of making a complete switch to open-source. Linux is a new world to me. Ubuntu was my selection of the various distributions. Please pardon this very basic question (I was unable to locate an answer on R or Ubuntu). I used Synaptic to download the necessary files to run. However, I was

Dear all, I have two coordinates vectors, say X and Y of length n. I want to generate for each couple of coordinates X1,Y1 X2,Y2 X3,Y3....Xn,Yn a random coordinate which is located in a square define as X +/- dx and Y +/- dy. I saw the runif function which can generate for just one value at a time what I want : runif(1, X - dx, X + dx) for X and runif(1, Y - dy, Y + dy) for Y. I would like

Dear R gurus - consider this plot: library(ggplot2) dat <- sample(1:8,100,replace=TRUE) smp <- ggplot(data.frame(dat), aes(x=factor(dat),fill=factor(dat))) + geom_bar(width=1) smp + coord_polar() Q1. How do I change the font size and weight of bar labels (1,2,3...)? I've been wallowing in the 'Themes' structure and I just can't figure out the correct place to change

Hi, I've currently to work with some circular data. Unfortunately I'm not very familiar with circular statistics and would really appreciate if I could get some help concerning the CircStats package this way. My data lies in the range 0 to 2*pi, and is transformed to radians (as expected by the CircStats methods). Calculating the mean direction (circ.mean) results for some datasets in a