similar to: Web implementation of R?

Hi Everyone, Does anyone know of any projects for running an interactive R session within a web browser? I'm looking for something similar to the one on the Ruby website (http://tryruby.org), except for R. Thanks for your responses in advance! Lanna ----- Lanna Jin lannajin at gmail.com 510-898-8525 -- View this message in context:

Dear R devel list, Good morning; I'm with the Sage (http://www.sagemath.org) project. (Some of you might have seen my talk on this at last summer's useR conference). We have some rudimentary support for using R graphics in various cases, which has proved useful to many of our users who want to go back and forth between R and other capabilities within Sage. Unfortunately, the way we

Hello all, I have not been able to find an answer to this problem. I feel like it might be so simple though that it might not get a response. Suppose I have a dataframe like the one I have copied below (minus the 'calib' column). I wish to create a column like calib where I am subtracting the 'Count' when 'stain' is 'none' from all other 'Count' data for

Hello, I am trying to create a plot often seen in hydrodynamic work than includes a contour plot representing the water speed with arrows pointing in the direction of flow. Does anyone have any idea how I might add arrows based on wf$angle (in the example below) to the plot below? Thanks in advance! Sam library(lattice) speed <- runif(100, 0, 20) wf <- data.frame(speed) wf$width <-

> Looking for a recommended package that handles prime number computations. I'm not sure whether this would be helpful to you, but Sage (http://www.sagemath.org) has excellent number theory support and several ways to interface with R (which is included in the distribution of Sage). I use it myself to access several R packages I need to do analysis on data I produce in Sage/Python, and

Hi R-Devel, The Sage project (http://www.sagemath.org) has been working extremely hard for several years to create a viable free open source alternative to Maple, Matlab, Mathematica, and Magma. Numerous users have requested statistical functionality. Though Sage includes scipy and numpy, which have some statistical functionality, we've decided the best longterm solution is to strongly

What are some effective ways to leverage the strengths of R and Mathematica for the analysis of a single data set? More specifically, are there any functions that can assist with any of the following? 1. Calling an R function from Mathematica. 2. Calling a Mathematica function from R. 3. Using XML or another reliable data format to pass vectors, matrices, and/or lists from one environment to

Dear all, I just changed from linux to a solaris server and I'm having trouble building R from source. I can't use the binaries because I don't have a permission to write to /usr/local. I followed the online instructions regarding the configuration with readline and the GNU version of iconv: ./configure --prefix=/u/fox/binaries

Hello, I am trying to define a different interval for a "year". In hydrology, a "water year" is defined as the period between October 1st and September 30 of the following year. I was wondering how I might do this in R. Say I have a data.frame like the following and I want to extract a variable with the water year specs as defined above:

I have constructed a Trellis style xyplot. lengthf <- factor(length) xyplot(SLI$velocity ~ SLI$width | SLI$lengthf, layout = c(2,7), xlab = "Width (cm)", ylab = "Velocity (m/s^2)", col = "black") This produces a lovely little plot. However, the grouping factor(lengthf) isn't in the right order. My values range from 2-28 and the 2 graph on the bottom left and

Hello, I am looking for a way to subset a data frame by choosing the top ten maximum values from that dataframe. As well this occurs within some factor levels. ## I've used plyr here but I'm not married to this approach require(plyr) ## I've created a data.frame with two groups and then a id variable (y) df <- data.frame(x=rnorm(400, mean=20), y=1:400,

I've tried to build R 2.6.1 and 2.7.0 on Solaris 10 update 4 (SPARC) and both configure ok, so you might ask why I suspect there is a problem. I tried to build the maths program Sage http://www.sagemath.org/ version 3.0.3alpha1. Sage fails when building R 2.6.1 - (Sage includes R in the package). The relavant bit of Sage, which is only using an unmodified R configure script is: checking

The R manual says R will not build with gcc on 64-bit Solaris x86 with gcc http://cran.r-project.org/doc/manuals/R-admin.html#Solaris "Tests with gcc32 on ?x86? and ?amd64? have been less successful: ?x86? builds have failed on tests using complex arithmetic33, whereas on ?amd64? the builds have failed to complete in several different ways, most recently with relocation errors for

Good Morning, I am trying to create a new column of character strings based on the first two letters in a string in another column. I believe that I need to use some combination of ifelse and grep but I am not totally sure how to combine them. I am not totally sure why the command below isn't working. Obviously it isn't finding anything that matches my criteria but I am not sure why. Any

Trying to get 2.11.1 built on a solaris 10 machine. This particular machine I do not have root access so I have just created an area under my home to use. I am currently having issues in the src/library area most specifically with getting the datasets area built. Here is the output form my most recent compile: building package 'datasets' all.R is unchanged

I'm trying to build R 2.10.1 on a Sun Blade 1000 running Solaris 10 (03/05 release). I've installed iconv 1.13.1 and used: CPPFLAGS="-I /export/home/drkirkby/sage-4.3.3.alpha0/local/include" (which is where iconv is) LDFLAGS= -R/export/home/drkirkby/sage-4.3.3.alpha0/local/lib -L/export/home/drkirkby/sage-4.3.3.alpha0/local/lib The build of R fails as below. gcc

Hello all, This is one of those "Is there a better way to do this questions". Say I have a dataframe (df) with a grouping variable (z). This is my base data. Now I know that there is a higher order level of grouping that exist for my group variable. So what I want to do is create a new column that express that higher order level of grouping based on values in the sub-group (z in this

Hello, I am attempting to write a script that adds error bars to a barchart. I basing my attempt heavily on the following thread: http://tolstoy.newcastle.edu.au/R/e2/help/06/10/2791.html I can't seem to get around the problem that was discussed in the thread. The following example should illustrate my problem. Sorry about the messy example but I am 1) trying to make it as close as possible

On Sun, Jun 13, 2010 at 8:28 AM, Uwe Ligges <ligges at statistik.tu-dortmund.de> wrote: > > > On 13.06.2010 01:09, Dr. David Kirkby wrote: >> >> On 06/12/10 05:27 PM, Douglas Bates wrote: >>> >>> On Sat, Jun 12, 2010 at 8:37 AM, Dr. David Kirkby >>> <david.kirkby at onetel.net> wrote: >>>> >>>> R 2.10.1 is used in

Hello all, I can't seem to figure out how to format a date as a title. I have something like this: plot(x=1:10, y=runif(10,1,18), main=paste(as.Date("2011-05-03", format="%Y-%m-%d"))) ## When I would really like this plot(x=1:10, y=runif(10,1,18), main=paste("May-03-2011")) ## I thought to try this but that produces an NA. plot(x=1:10, y=runif(10,1,18),