similar to: count() function

Hello, I have a data set that needs to be combined so that rows are summed by a group based on a certain variable. I'm pretty sure rowsum() or rowsums() can do this but it's difficult for me to figure out how it will work for my data based on the examples I've read. My data are structured like this: Plot SizeClass Stems 12 Class3 1 12 Class4

I have data that looks like this: > df1 group id 1 red A 2 red B 3 red C 4 blue D 5 blue E 6 blue F I want a list of the groups containing vectors with the ids. I am avoiding subset(), as it is only recommended for interactive use. Here's what I have so far: df1 <- data.frame(group=c("red", "red", "red", "blue",

The code below is a small reproducible example of a much larger problem. While the script below works, it is really slow on the true dataset with many more rows and columns. I'm hoping to get the same result to examp, but with significant time savings. The example below is setting up a data.frame for an ensuing regression analysis. The purpose of the script below is to appends columns to

Hello R-help. I believe I may be coding the offset incorrectly in my formula. I am testing significance between different group pairings using the VGAM package. My data are zero-truncated and poisson-distributed and overdispersed, so I'm using the posnegbinomial function in vglm (code below). I've spent a very long time working out this model and am pretty sure it's the best for

Hi all, Im having a hard time figuring whats wrong with my Samba-ldap setup. I hope somebody may point out the error. I've set it up according to John H. Terpstra's excellent "Samba 3 by example". This book is also availible from samba.org, and chapter I'm referencing is this: http://us1.samba.org/samba/docs/man/Samba-Guide/happy.html I followed the book character by

I'm having a hard time figuring out how to group results by certain factors in R. I have data with the following headings: [1] "Time" "Plot" "LatCat" "Elevation" "ElevCat" "Aspect" "AspCat" "Slope" [9] "SlopeCat" "Species" "SizeClass" "Stems" and

Hello, I'm not a Stata user so I'm trying to reproduce Stata results that are given to me in R. I would like to use a GLM with a complementary log-log function. The stata code I have is: glm c IndA fia, family(binomial s) link(cloglog) offset(offset) The R code is: glmt <- glm(data=dataset, c ~ IndA + fia, offset = offset, family = binomial(link = cloglog)) Which yields

Hello, I need an information: is it possible to call the statistical R_project funtions from a C or Fortran application? In the r_exts.pdf manual I found that is possible to interface R-project with compiled C/Fortran routines, but I didn't found anything about the opposite situation. Thanks in advance Giovanni Colombo CESI spa - Funzione Informatica e Automazione Via Rubattino 54 - 20134

I'm trying to use tapply to output means and SD or SE for my data but seem to be limited by how many times I can subset it. Here's a snippet of my data > stems353[1:10,] Time DataSource Plot Elevation Aspect Slope Type Species SizeClass Stems 1 Modern Cameron 70F221 1730 ESE 20 Conifer ABCO Class1 3 2 Modern Cameron 70F221 1730

Hello, I'm having trouble figuring out how to see resulting groups (clusters) from my hclust() output. I have a very large matrix of 4371 plots and 29 species, so simply looking at the graph is impossible. There must be a way to 'print' the results to a table that shows which plots were in what group, correct? I've attached the matrix I'm working with (the whole thing

Hello, I am working with two different data frames, and I'd like to move data from one to the other. Here is the first frame: > head(five) Week Game.ID VTm VPts HTm HPts HDifferential VDifferential 1 1 NFL_20050908_OAK at NE OAK 20 NE 30 10 -10 2 1 NFL_20050911_ARI at NYG ARI 19 NYG 42 23 -23 3 1 NFL_20050911_CHI

Hello, I'm looking for what I'm sure is a quick answer. I'm working with a data set that looks like this: Week Game.ID VTm VPts HTm HPts Differential HomeWin 1 1 NFL_20050908_OAK at NE OAK 20 NE 30 10 FALSE 2 1 NFL_20050911_ARI at NYG ARI 19 NYG 42 23 FALSE 3 1

Hi! I need your advice. My problem is that I have very bad sound quality calling to cellular phone via asterisk router. There are some kind of noises and echo effects when you try to speak louder. I have the following components in my call routing schema: - PBX with E1 port. - asterisk router with TE405P card(32bit/4 E1 ports). - Teles server with PRI interface card(3 E1 ports) and VTM

Dear All. I want to become a wholesale VoIP traffic Provider , and i don't have a experience about the software used this career . I ask about Freeside billing system , FreeRADIUS AAA server and Asterisk telephony server gave me all i need to start my business . thanks -- Best Regards Mohamed Daif -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hello, I have a problem with fPortfolio recently. I am using below code: Data = read.table("hf.txt",header = TRUE,sep = "") Data = Data[, c("CA", "SS", "EM", "EMN", "ED", "DS", "MS", "RA", "FIA", "GM", "LSE", "MF", "SP500", "NASDAQ",

TURISMO & EVENTOS Luiz Guilherme 3031-7374 e Marcio Sorriso 9887-9141 S?o Paulo -SP Em abril, M?rcio Sorriso e Luiz Guilherme promover?o uma inesquec?vel viagem ? cidade maravilhosa. Ser? mais uma oportunidade para voc? divertir-se conhecer ou rever lugares maravilhosos, fazer novos amigos e ? claro, dan?ar e dan?ar... Muito! Voc? n?o pode deixar de participar. Leia a

The Wine development release 5.11 is now available. What's new in this release (see below for details): - Wine Mono engine updated to 5.1.0, with WpfGfx library support. - More work on the separate Unix library for NTDLL. - Beginnings of a NetIO kernel driver implementation. - Initial support for the Print Ticket API. - Removal of the obsolete 32-bit PowerPC architecture. -

What will follow soon are updates to vtpmd, vtpm_manager, xm, xl, mini-os, and new vtpm and vtpm manager stub domains. The first patch I''d like to submit upgrades vtpmd to version 0.7.4 This patch does the following: -add checks to configure to check for cmake (required by berlios 0.7.4) -removes all of the 0.5.1 patches -adds a single patch for 0.7.4 -cleans up the makefile, should

Hello list. I'm trying to rebuild the 2.6.9.67.0.20.EL kernel, but it fails even without modifications. How did I try it? Created a (non-root) build environment (not a mock ) Installed the kernel.scr.rpm and did a rpmbuild -ba --target=`uname -m` kernel-2.6.spec 2> prep-err.log | tee prep-out.log The build failed at the end: Processing files: kernel-xenU-devel-2.6.9-67.0.20.EL Checking

Je suis absent entre Lun 02/02/2009 et Ven 02/06/2009. Remarque?: ceci est une r?ponse automatique ? votre message "samba Digest, Vol 74, Issue 3" envoy? le 03.02.2009 13:02:42. C'est la seule notification que vous recevrez pendant l'absence de cette personne.