similar to: Building Custom GUIs for R

I am looking for online courses to learn Spatial Statistics using R. Statistics.com is offering an online course in December on the same topic but that schedule doesn't suit mine. Are there any other similar modes for learning spatial statistics using R??? Can someone please advice??? Thank you. Ravi -- View this message in context:

I am trying to find the distance between a vector and each row of a dataframe. I am using the function "distancevector" in the package "hopach" as follows: mydata<-as.data.frame(matrix(c(1,1,1,1,0,1,1,1,1,0),nrow=2)) V1 V2 V3 V4 V5 1 1 1 0 1 1 2 1 1 1 1 0 vec <- c(1,1,1,1,1) d2<-distancevector(mydata,vec,d="euclid") The Euclidean distance

I have a text file that has semi-colon separated values. The table is nearly 10,000 by 585. The files looks as follows: ******************************************* First line: Skip this line Second line: skip this line Third line: skip this line variable1 Variable2 Variable3 Variable4 Unit1 Unit2 Unit3 10 0.1 0.01 0.001 20

Is there a text mining/ NLP package in R that could do text summarization? For example, take a huge text as input and provide a summary of the text. In package tm, summarization is defined more as high frequency terms which is not what I want. I actually want a summary of what is present in the huge volume of text. Any help on a R package would be helpful. Thank you. Ravi -- View this message

I have the following data: x <- as.factor(c(1,1,1,2,2,2,3,3,3)) y <- as.factor(c(10,10,10,20,20,20,30,30,30)) z <- c(100,100,NA,200,200,200,300,300,300) I could create the cross tab of x and y with Sum of z as its elements using the xtabs function as follows: # X Vs. Y with Sum Z xtabs(z ~ x + y) y x 10 20 30 1 200 0 0 2 0 600 0 3 0 0 900 How do I replace

I have the following FORTRAN code converted to a DLL: ! my_xmean.f90 ! ! FUNCTIONS/SUBROUTINES exported from my_function.dll: ! my_function - subroutine ! subroutine my_xmean(X,N,XMEAN) ! Expose subroutine my_function to users of this DLL ! !DEC$ ATTRIBUTES DLLEXPORT,C,REFERENCE,ALIAS:'my_xmean_'::my_xmean ! Body of my_function DOUBLE PRECISION X(N) XMEAN=0D0 DO J=1,N

I have currently a R function that reads a csv file, does some computations, produces some plots and writes a csv file as output. I would like to use HTML forms to make a user interface for calling appropriate parts of the functions (reading csv file, doing computations, displaying plots and writing csv files). Are there are tutorials available that would help me get started?? Thank you. Ravi

I am trying to parse a webpage using the htmlParse command in XML package as follows: library(XML) u = "http://en.wikipedia.org/wiki/World_population" doc = htmlParse(u) I get the following error: Error in htmlParse(u) : error in creating parser for http://en.wikipedia.org/wiki/World_population I am using a R 2.13.1 (32 bit version) on a 64 bit Windows. (I tried installing it in

I am using gsub to remove numbers for each element of a list. Code is given below. testList <- list("this contains a number 1000","this does not contain") removeNumbers <- function(X) { gsub("\\d","",X) } outputList <- lapply(testList,removeNumbers) However, when I try to find the number of words in outputList as follows

Hello R-users, I am interested to know if there is a tool that allows us to build SAS Enterprise Miner like workflows using the R scripts. For example, let's say I have the R scripts/functions for the following tasks: 1. Data Cleaning 2. Model Building 3. Model Validation 4. Visualization I would like to drag these functions into a workflow and run them together (output of one function

DeaR ComRades, This is a quote from a News article in Science's 11-February issue, about competitions to model data: "For Chris Raimondi, a search-engine expert based in Baltimore, Maryland, and winner of the HIV-treatment competition, the Kaggle contest motivated him to hone his skills in a newly learned computer language called R, which he used to encode the winning data model.

I am trying to call a FORTRAN subroutine from R. is.loaded is turning out to be TRUE. However when I run my .Fortran command I get the following error: Error in .Fortran("VALUEAHROPTIMIZE", as.double(ahrArray), as.double(kwArray), : Fortran symbol name "valueahroptimize" not in load table I have given the FORTRAN declaration below: subroutine VALUEAHROPTIMIZE(AHR,

Hola: En el trabajo tengo que montar acceso a investigadores a uno de los servidores de cálculo de la unidad, y he conseguido ya montar un R dentro de una jaula ssh con JailKit (chroot). http://olivier.sessink.nl/jailkit/ https://launchpad.net/jailkit Ahora bien, quería probar que los usuarios pudieran también abrir alguna GUI al conectarse con ''ssh -X foo@server'' (por

I am trying to code the following excel formula in R. a b c Result Formula 1 10 0.1 #N/A IF(B2<20,NA(),C2+IF(ISERROR(D1),0,D1)) 2 20 0.2 0.2 IF(B3<20,NA(),C3+IF(ISERROR(D2),0,D2)) 3 30 0.3 0.5 IF(B4<20,NA(),C4+IF(ISERROR(D3),0,D3)) 4 40

I have a R code that loads a FORTRAN DLL to do some calculations. The code works fine when I use it in R. But when I try it in spotfire it throws an error that the it is unable to load the shared library and the specified DLL cannot be found. I have used "setwd" to point to the location in the spotfire statistical services server library. Is this the correct way to call the DLL in

I am trying to perform Singular Value Decomposition (SVD) on a Term Document Matrix I created using the 'tm' package. Eventually I want to do a Latent Semantic Analysis (LSA). There are 5677 documents with 771 terms (the DTM is 771 x 5677). When I try to do the SVD, it runs out of memory. I am using a 12GB Dual core Machine with Windows XP and don't think I can increase the memory

OK, I need help!! I've been searching, but I don't understand the logic of some this dataframe addressing syntax. What is this type of code called? test [["v3"]] [is.na(test[["v2"]])] <-10 #choose column v3 where column v2 is == 4 and replace with 10 and where is it documented? The code below works for what I want to do (find the non-missing value in a row),

Hi, I am running a simulation study with the survival::coxph. Some of the simulations result in problematic fits due to flat partial likelihood. So, you get the warning message: Warning message: In fitter(X, Y, strats, offset, init, control, weights = weights, ... : Loglik converged before variable 2 ; beta may be infinite. How can I keep track of the simulations which yield any kind of

Hello, Our company has been looking at "SAS enterprise guide 4" (Insightful Miner is a similar product from Insightful, I believe) which seems to provide a nice graphical way of displaying/managing a process or project. It is also accessible to non-programmers. Does any of the R GUIs provide similar functionality please? Can you point me in the right direction? Thanks in advance Best

Hello, I am not currently using R but I have been using S+ for sevaral years. I think that I fit in the category of power users, never using the GUI prefering the flexibility of a command line interface (CLI). In a short while I will try to move to R, that is if we can convince our IT people that installing a freeware package on a Unix server will not damaged the companie's network! The