similar to: get index of elements in vector

Hello, I am a chemical student and I make use of 'lme/lmer function' to handle experiments in split-plot structures. I know about the mcmcsamp and I think that it's very promissory. I would like knowing "the concept behind" of the mcmcsamp function. I do not want the C code of the MCMCSAMP function. I would like to get the "pseudo-algorithm" to understanding that

Ryacas is an R interface to the free yacas computer algebra system. Ryacas allows one to send R expressions, unprocessed yacas strings and certain other R objects to a separate yacas process from R and get back the result. It also has facilities for manipulating yacas strings and R expressions destined for yacas processing. It can be used for exact arithmetic, symbolic math, ASCII pretty

Ryacas is an R interface to the free yacas computer algebra system. Ryacas allows one to send R expressions, unprocessed yacas strings and certain other R objects to a separate yacas process from R and get back the result. It also has facilities for manipulating yacas strings and R expressions destined for yacas processing. It can be used for exact arithmetic, symbolic math, ASCII pretty

Ryacas is an R interface to the free yacas computer algebra system. Ryacas allows one to send R expressions, unprocessed yacas strings and certain other R objects to a separate yacas process from R and get back the result. It also has facilities for manipulating yacas strings and R expressions destined for yacas processing. It can be used for exact arithmetic, symbolic math, ASCII pretty

Hello How to create plots dynamically with results of several analysis ? I got many outputs from lm fuction like: mp1.lm mp2.lm mp3.lm mp4.lm mp5.lm ... I'd like to make experimental versus predicted response plots of all analysis in a 'for loop': for( i in 1:10){ x11() plot( mp*i*$experimental_response, fitted( mp*i* ) ); abline(0,1) } I tried: paste( 'mp', i,

hello all, when I start up the R and I execute o follow code: > ls() character(0) > x=123 > assign("test_x", x, envir = .GlobalEnv ) > ls() [1] "test_x" "x" > setwd('C:\\R\\etc') > save.image('TEST.RData') > q('no') I have two different behaviours: (a) - when I start up R again by "double click" in

hello all, where I find a example or tutorial of RGtk2 package? I would like to know about the gladeXML functions in R. thanks in advance Cleber Borges

Hello All! How to plot a image ( image function ) with restrictions, like a polygon?? Thanks in advance! Cleber N. Borges ##### problem example x <- y <- seq(-4*pi, 4*pi, len=27) r <- sqrt(outer(x^2, y^2, "+")) image( z ) contour(z, add = TRUE, drawlabels = FALSE) m=scan() 0.2 0.2 0.8 0.2 0.5 0.8 m = matrix(m,nr=3,byrow=T) polygon( m, lwd=5 )

hello all I am trying to learn how to use the RGtk2 package... so, my first problem is: I don't get the right way for populate my gtkListStore object! any help is welcome... because I am trying several day to mount the code... Thanks in advanced Cleber N. Borges --------------------------- # my testing code library(RGtk2) win <- gtkWindowNew() datamodel <-

Hello all useRs, I am using the OPTIM function with particular interest in the method L-BFGS-B, because it is a box-constraint method. I have interest in the errors estimates too. I make: s.e. <- sqrt( diag( solve( optim(...,method='L-BFGS-B', hessian=TRUE)$hessian ))) but in help say: "Note that this is the Hessian of the unconstrained problem even if the box constraints

Hello R users... how to align this Zmat (triangle image) in X axis? I would like that the triangle's base become in the X axis and the triangle's height become in the Y axis Is there some trick for make this? Thanks. Cleber ######################## my test and try f <- function(x,y){ z=1-x-y z[ z < (-1e-15) ] <- NA return( -100*x+0*y+100*z ) } x = seq( 1, 0,

hello all, I trying to use the package 'odfWeave' and I get the follow error: ### error message ############################################################# ... Removing content.xml Post-processing the contents Error in .Call("RS_XML_Parse", file, handlers, as.logical(addContext), : Error in the XML event driven parser for content_1.xml: error parsing attribute name

Hello all, I'm trying to use the adimpro package to read RAW files (image). Make readins is OK! > r <- read.raw( '20171218_210956.dng', type='RAW', compress=FALSE ) > summary( r ) > ### cut the many lines... Filter pattern: GR/BG > extract.info( r ) [1] "GR/B" > To next, develop the raw file using the "develop.raw" function. But the

Hi every body. I'm having difficulties to setup my filters correctly and I really need some help. This is my environment: Mail that is received on the system passes through a sieve_before script that checks the message header for SPAM tag and store it into the "Junk" folder. If no spam tag is found, mail goes to inbox. My horde webmail is integrated with sieve, so this allow

hello all, I am trying to compile the R in Win7 and compiles one small part but the script don't move from the 'base' directory to 'stats' I installed the Rtools likee administrator and call the terminal (MS-DOS) like administrator too. if somebody can tell me any tips, I thank in advanced cleber ############################################# File LOG

Hi R Users, How to use the function polygon() together with the package scatterplot3d? I am trying to color below of the curves defined for the function density(). I tried to use the site: R GRAPH GALLERY as tutorial. I tried to adapt the example of this page: [figure]: http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=30 [code]:

hello I make a subroutine that give-me a (mathematical) function in string format. I would like transform this string into function ( R function ). thanks for any tips. cleber #e.g. fun_String = "-100*x1 + 0*x2 + 100*x3" fun <- function(x1,x2,x3){ return( ############ evaluation( fun_String ) ############ ) True String mathematical function :-( :-( > nomes [1]

Hello All, I am trying to learn about the GUI in R (with GTK+Glade+RGtk2) and in my test I don't get sucess in to make an callback to destroy the application... When I try to define an function for "delet-event callback", I get the error message: (with mouse click in X window) *Error in function () : * * unused argument(s) (<pointer: 0x017ca000>, <pointer:

Hi, I would like to get all X iterations in optim output in matrix form. I know about the follow approach: sink("reportOptim") optim( ......., control=list( trace=6,..........) ) sink() all_iterOptim <- readLines("reportOptim") unlink("reportOptim") all_iterOptim <- all_iterOptim[ grep( '^X', all_iterOptim ) ] ### TODO: the rest !!! :-) But it is very

Hello all useRs, I am tring make a simple surface plot ( 2 by 2 terms of a MARS model (with earth package) but I get the follow error message: > plotmo( mars ) Error: bad index (missing column in x?) I don't no how to workround this... :-( I thanks in advanced by some help! Thanks. Cleber ############### > > ### example code: > library( earth ) > data( gasoline,