similar to: Getting rows from a dataframe

Df[x, ] Read 'an introduction to R' and 'FAQ' -----Urspr?ngliche Nachricht----- Von: Mark Lee [mailto:mark.lee at orbisuk.com] Gesendet: Donnerstag, 9. Oktober 2003 18:02 An: r-help at stat.math.ethz.ch Betreff: [R] Getting rows from a dataframe Sorry if this is a silly question. I'm trying to extract all elements of a dataframe at a particular row. I can find no mention

something like "sprintf" in C? so I can do: print(sprintf("the correct result is %3.4f\n", myresult)); ------- Also, I am desperately looking for a "clear console screen" function in R... thanks a lot! [[alternative HTML version deleted]]

Hi, Pardon my naivety - but how do I add a new tiki page? I want to add one for 'wiki-Asterisk+cdr+pgsql'. thanks, James

I am a brand new user of Speex, so forgive my naivety. I am receiving an audio stream (PCM) which I need to encode in Speex, send it across a wire via RTP, and then decode and play the audio on the other side. I assume people have done this before, and I was wondering if anyone had any sample code of how they accomplished this. Or maybe just some good pointers or advice. Thanks Shane

Hi Dean, thank you for the response! I'm a newbie to LLVM, a student working on an LLVM project so I'm not quite sure of what you're suggesting, please excuse my naivety. To clarify there used to exist this http://llvm.org/releases/1.0/docs/CommandGuide/lli.html where you could type "lli -trace 'filename.bc' and you would get a dump of the dynamic excutiion trace. I

Hi all, This could be naivety/stupidity on my part rather than a problem with model output, but here goes.... I have fitted a fairly simple model m1<-glm(count~siteall+yrs+yrs:district,family=quasipoisson,weights=weight,data=m[x[[i]],]) I want to know if yrs (a continuous variable) has a significant unique effect in the model, so I fit a simplified model with the main effect ommitted...

Hi everyone, I have been using REML to derive intercepts and coeficients for each individual in a growth study. So the code is m2 <- lmer(change.wt ~ newwt+(newwt|id), data = grow) Calling coef(model.lmer) gives a matrix with this information which is what I want. However, as a test I looked at each individual on its own and used a simple linear regression to obtain the same information, then

Given this code (which renders rjs), I''m faced with the fixture- driven way of spec-ing or mocking. How the heck to you mock this so the code at line (2) and (4) work right? I''m still struggling with mocks but it seems like this can be done. Forgive the naivety of this question. 1. def change_quantity 2. @line_item = LineItem.find_by_id(params[:id]) 3. unless

Dear All, I am new to R and can see it is a very powerful and versatile system for programming and statistical analysis. Say I have written a simple function and want to use it on a regular basis. I have the file as a text file say 'c:\R-funcs\func.txt' how do I get R to find it on the hard disc or alternatively where is the default location for looking up functions where I can place

useRs and developeRs- Apologies for my naivety, but I just couldn't figure out how to open an old workspace (created using R 2.3.0) using R 2.3.0 and not R 2.4.0 which is currently happening. For all I know this has always been the case, but I'm having a problem with a function that doesn't work in 2.4.0 but does work in 2.3.1 (function is in the process of being fixed). So I would

Hi, SLES10 SP2 x86_64 + Samba from repo (samba-3.2.4-8.1) When I try to join (net ads join -U Administrator), I get : Failed to join domain: failed to set machine spn: Can't contact LDAP server My Pre-2000 domain name is CLSC_COTENEIGES My DNS ADS name is clsccdn.rtss.qc.ca DNS is ok, I've created an A/PTR record for linux box, ADS seems ok also (netdiag/dcdiag) i've tryied adding

Guess what I have no clue what i am doing/ meant to do with R. i have just begun statistics for uni and all commands don't seem to work, they say syntax error, we are meant to put a hist.r in but ? please help, step by step, to use this program i would turn it on (it comes up rgui) is this wrong, have i put the wrong bit on it? Please help, I am so glad there is an R help Thankyou jill

Can you provide the summary(m2) results? > -----Original Message----- > From: Simon Pickett [mailto:S.Pickett at exeter.ac.uk] > Sent: Wednesday, August 16, 2006 7:14 AM > To: Doran, Harold > Cc: r-help at stat.math.ethz.ch > Subject: [SPAM] - RE: [R] REML with random slopes and random > intercepts giving strange results - Bayesian Filter detected spam > > Hi again,

There is PostDominatorTree for determining post-dominance. Even if A post-dominates B and B is executed, that doesn't guarantee that A will be executed. For example, there could be an infinite loop in-between. Strong post-dominance makes the stronger guarantee that there will be no infinite loop from B to A. Do we have anything in LLVM for determining strong post-dominance and in general for

Hi John, Thank you so much for the valuable answer! :) However, i have one tough issue that i need to solve, in my pass : let's say here %s = add %a, %b I need to check if the value of %a or %b is 2 or 4 and then apply a transformation to the other operand accordingly, for example if the value of %a = 2 the i'll multiply %b by 2 in my transform pass. I'm having a hard time

Will the real book "S Programming" please stand up. As I searched for this book both on AMAZON.COM and AMAZON.CO.UK, I found two different versions. On AMAZON.COM my search reveals S Programming (Statistics and Computing) by Brian D. Ripley, William N. Venables. Our Price: $59.95. Availability: Usually ships within 24 hours. Hardcover - 264 pages 1st edition (May 15, 2000) Springer

Hello! I want to calculate the intra- and interrater reliability of my study. The design is very simple, 5 raters rated a diagnostic score 3 times for 19 patients. Are there methods/funtions in R? I only found packages to calculate interrater variability and intraclass correlation coefficients for matrices of n*m (n subjects, m raters) - I have n subjects, m raters and r repetitions. Can

has anyone noticed a performance gain with protocol 2? -David Higdon

Hi Since a stepwise procedure for variable selection (as e.g. in SPSS) for a LDA is not implemented in R and anyway I cannot be sure, that all the required assumptions for e.g. a procedure using a statistic based on wilks' lambda, hold (such as normality and variance homogeneity) I would like to ask you, what you would recommend me: shall I e.g. define a criterion such as the error-rate

Hi, Can anyone tell me what's wrong with the function below (I'm new to R) generator <- function(n, seed) { .Random.seed <<- seed data.1 <- rnorm(n)-1 data.2 <- rnorm(n)+2 data.3 <- runif(n) <= 0.6 data <- data.1*data.3 + data.2*(1-data.3) data } seed <- c(61,40,6,40,55,2,44,30,20,56,41,1) dat.mixed <- sort(generator(100,seed)) Error