similar to: Delete rows with duplicate field...

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:

Hi All, If given a dataframe (long form) with Year, Species, and Location, How would I write a function that would create a unique matrix of Species & Location for each Year? What I've tried doing is the following: data #dataframe dataT<-table(data$Species,data$Location,data$Year) #creates tables of Species vs Location for each Year But I'm encountering issues individually

I need to replace <NA> occurrences in multiple columns in a data.frame with "000/000" how do I achieve this? Thanks Nevil Amos

Hi all, First off, thank you for the overwhelming response last time. I'm still trying to figure out the syntax of R to plot some distributions of some frequencies. I've managed to plot histograms from the data, but I would like to clean it up using xyplot from library(lattice). Unfortunately I cannot find a solution to my problem. Given a dataframe "all2", with numerical

Hey All, So, I am confused how exactly to use nesting loop functions in R to spit out data frames. I've managed to create a working function for my data set that generates a data frame for a given set of Year i and Location j; but how would I do it for all Years and Locations? Here is my working function: test<-function(i,j){ a<-x[which(x$Year==i & x$Location==j),]

Hey all, I feel like the solution to this problem should be relatively simple, but for some reason I can't find answers or come up with my own solution. Given the dataframe: (SpA and SpB not important, want to look at distribution of cooccurance for each year) Year SpA SpB Coocc 2000 0 2000 2 2000 1 2001 8 2001 2 2001 0 2001 0 2002 1 2002 2 How can I apply different functions to

Hi guys, I have a matrix with values varying from approximately -0.7 to 0.33 that I want to create a heatmap/levelplot with. When I execute the levelplot function for my matrix, I end up getting colors that are adjusted to the max and min rather than around 0. In other words, ideally I would like to have a color ramp that goes from red (negative number), to white (0), to blue (positive);

Hi all, So let's say I have a matrix, mdat and I only know the index number. How do I retrieve the column and row names? For example, > mdat <- matrix(c(1,2,3, 11,12,13), nrow = 2, ncol=3, byrow=TRUE, dimnames = list(c("row1", "row2"), c("C.1", "C.2", "C.3"))) > mdat[4] [1] 12 >

Dear group, I am losing my mind with a simple question. Sorry if obvious, but I maybe start to be confused after days and days of reading documentations. Df : df <- structure(list(a = 1:3, b = 4:6, c = structure(c(1L, 1L, 1L), class = "factor", .Label = "w")), .Names = c("a", "b", "c"), row.names = c(NA, -3L), class =

Hello. I have setup a local network where Windows 98 workstations authenticates against a samba server PDC running on linux, and it is working. But there is a little annoyance: Windows 98 is handling 2 passwords: 1) the network password (used with the samba PDC) 2) the windows password (used with the Windows desktop) Windows users can change their passwords from the workstation, but the

Dear R helpers, I would like to write a loop that makes 4 objects (called A, B, C, and D) each of which contains ten random numbers. This attempt: individuals<-c("A","B","C","D") for(i in 1:length(individuals)) { individuals[i]<-rnorm(10) } does not work because "individuals[i]" is not the proper way to extract each letter from the

dear R wizards:? I am wrestling with reshape.? I have a long data set that I want to convert into a wide data set, in which rows are firms and columns are years. > summary(rin) firm fyear sim1 Min. :1004.00 Min. :1964.0 Min. : -1.00000 1st Qu.:1010.00 1st Qu.:1979.0 1st Qu.: -0.14334 Median :1016.00 Median :1986.0 Median : 0.00116 Mean

Hello All! I am trying to plot the frequency of species coocurrance. If given a data set similar like this...(V1="species A", V2="species B", V3="frequency of cooccurance") > data V1 V2 V3 1 A B 0 2 A C 2 3 A D 5 4 B C 0 5 B D 1 6 C D 0 > data1<-as.data.frame(lapply(data,function(x)(rep(x,data$V3)))) > as.data.frame(data1[-1]) >

Hello All, I'm having some issues controlling graphics in R. I was wondering if anyone may help me tackle this problem: Given a data frame "X" with variables "Year", "Factor" (w/ n groups), and "Freq" How do I create a single graphic with the following plots aligned in a vertical stack? 1. box plot in the fashion Freq~Year|Factor 2. box plot

ola, ive been looking at adding support for an -msave-args option for use on x86_64. the short explanation of it is that it makes x86_64 function prologues store their register arguments on the stack. the purpose of this is to make the arguments trivially accessible for things like stack traces with arguments. as per https://blogs.oracle.com/sherrym/entry/obtaining_function_arguments_on_amd64,

Unsubscribe -----Original Message----- From: r-help-request at r-project.org Date: Wed, 05 May 2010 12:00:09 To: <r-help at r-project.org> Subject: R-help Digest, Vol 87, Issue 5 Send R-help mailing list submissions to r-help at r-project.org To subscribe or unsubscribe via the World Wide Web, visit https://stat.ethz.ch/mailman/listinfo/r-help or, via email, send a message with subject

Hello Everyone,   Been learning R over the past several months. Read several books and have learned a great deal about data manipulation, statistical analysis, and graphics.   Now I want to learn how to make nice looking documents and about "literate programming." My understanding is that R users normally do this using LaTeX, MiKTeX, LyX, etc. in conjuction with Sweave. An alternative

Ok....so after installing "smartmontools" on my CentOS machine...and connectiing this drive externally...i got positive reports from both the short and long tests...so the drive can obviously be "seen"....but when I look for it in the /dev/ directory...it doesn't show up.....I'm about to give the fdisk command line tools anonther shot....it allows me to format the

Hello, I'm a newb with wine and not terribly bright with linux. I am trying to get some of the kids' games to work in Xubuntu. I got wine installed, and it seems I got the hot wheels game installed, after finding that I needed to run everything as sudo. Now when I run the program in the windows window I see a low-res video of a cd-rom being inserted into a disk drive, presumably

Dear list members, I have come about a peculiar behavior in R (4.0.2) which I would describe as a bug. On macOS, where `strptime()` raises a warning for invalid timezone identifiers, the following code will continue to raise the original warning with every subsequent call to `strptime()`: ``` # attach a handler for warnings for this call only: tryCatch(strptime('2020-10-31 18:30', format