similar to: Best way to store negative indexes

Dear all, this is a rather basic question; i am not sure how to structure my data well: I want to extraxt various measures from my raw-data. These measures are of different sizes, so I decided to store them in a list, like: run1 <- list(Dom = (my_vector), mean = (my_single_number)) I can do that in a for loop for 40 runs, ending up with 40 lists: run1, run2, ..., run40. To have all the

I am pretty new to R. So this may be an easy question for most of you. ? I would like to calculate the squared distances of a large set (let's say 20000) of vectors (let's say dimension of 5) to a fixed vector. ? Say I have a data frame MY_VECTORS with 20000 rows and 5 columns, and one 5x1 vector y. I would like to efficiently calculate the squared distances?between each of the 20000

Hi All, I would like to ask if it possible to start indexing a vector from 0: x = 1:10 y = c(0,0,3,4,5,6,0,8,9,10) I need to use y as an index to extract the values of x, BUT I cannot cull/transform the 0s. What I would like is to start counting the elements of x 0:9 rather than 1:10. Would this be at all possible? Regards, Federico Calboli -- Federico C. F. Calboli Department of

Dear R experts: Here is my problem: #Data 1 Y <- c(0.5, 0.1, 0.5, 1.3, 1.4, 1.6, 1.65, 2.4, 2.6, 3.4, 3.6, 4.3, 4.42, 4.8, 4.7, 3.4, 3.3, 2.8, 2.8, 1.2, 1.1, 0.5, 0.2, 0.1, -0.2, -1.5, -2.5, -1.3, -0.5, -0.1) X <- seq(1:30) X1 <- c(rep("T1", 24), rep("T2", 6)) dat1 <- data.frame(Y, X, X1) require(lattice) mcol <- c("green", "red")

I have been trying to get negative numbers to work in range searches. This is for lat/lon in a geographic search. Obviously I could find workarounds, but it seems like this should work. If I use a straight negative number, like this [-200 -100] it will come up empty. If I escape the - with a backslash, it works sometimes, but not always, but only if I REVERSE the numbers, e.g. [\-100 \-200].

Gruff''s default theme is eye-catching, however, I haven''t found a way to let it present negative data correctly(as seen in the attached). Gruff''s document is also a bit old (v0.4 vs current v0.7). Anyone knows how to solve it? or any other recommendations? Thanks, Sky _______________________________________________ Rails mailing list

Dear all, I'm using the latest version of the package lme4 and R version 2.7.2 (2008-08-25). After I run the model, I get the results of the model (cf. below). Then, I run an ANOVA using the "anova" function and I get the following message "Error in anova(lmer1) : Calculated PWRSS for a LMM is negative". I went trough the R-mailing list and a similar error message was

This patch ensures that lib/lib/vorbisfile.c will not use negative value of "link" when seeking. Negative value (link=-1) was used by ov_time_seek(vf, 0.0) at least. Double arithmetic is not precise, it depends on order of operands. "for(i=0;i<links;i++) sum+=x[i]" gives slightly different result than "for(i=links-1;i>=0;i--) sum+=x[i]". I tried add this

so it could be zero in both cases when given column has 0 set in it -- View this message in context: http://r.789695.n4.nabble.com/how-to-find-smallest-non-negative-and-biggest-non-positive-number-in-a-matrix-column-tp3077870p3077870.html Sent from the R help mailing list archive at Nabble.com.

Ben, I tried playing with the "na.action" but that didn't seem to help.  I didn't know of the na.omit function.  It made it much easier to get rid of all the missing values in the file, and now the regression model is running. I hadn't put interactions in the model yet since it wasn't even running.  Cosday, sinday, and daylength are strongly collinear.  The full model

Dear list, I'm trying to fit a glm model using family=poisson(link = "identity"). The problem is that the glm function fits a model with a negative intercept, which sounds like a nonsense to me, being the response a Poisson variable. >From a previous discussion on this list I've understood that the glm function uses IRLS for the fitting without any constraint so it is

Dear all, I am trying to estimate a system of equations with a Seemingly Unrelated Regression. However because of the characteristics of the data I'd like to do it with a negative binomial estimation. Would anybody know how to implement a Seemingly Unrelated Negative Binomial (SUNB) estimation in R? Thank you in advance for your help. Best regards, Elisa Lanzi -- Elisa Lanzi PhD student in

I estimated a negative binomial model using zelig. z.out<- zelig(NEWBHC~ PW80 + CHNGBLK + XBLK,data=data, model="negbin") How do I calculate predicted probabilities for this model? Is it the same process as a poisson regression? Thanks in advance Joe [[alternative HTML version deleted]]

Hi R-users,   I intend to apply a mixed model on a set of longitudinal data, with a negative binomial distributed dependent variable, and after following the discussions on R help list I saw that more experienced people recommended using lmer (from lme4 pack), glmmPQL (from MASS) or glmm.admb (from glmmADMB pack)     My first problem: yesterday this syntax was ok, now I get this weird message (I

Hello list, Has anyone had any luck creating an M-step driver for negative binomial regression for use with package flexmix? I've had a look here: http://cran.r-project.org/web/packages/flexmix/vignettes/flexmix-intro.pdf as well as poking around in the flexmix source, but I haven't had much luck getting anything to work. I can't figure out how to a) come up with an initial estimate

Wonder if it is intended behaviour that sanitize removes a style like "margin:-3px".

Hi Gam in mgcv package is predicting negative values which should not be the case despite all the predictors and response variables are positive. Tried to use log link function but it did not help. Please help sunil -- View this message in context: http://www.nabble.com/negative-prediction-by-gam-%28mgcv-package%29-tp20494965p20494965.html Sent from the R help mailing list archive at

Hi, I'm using Debian unstable, with kernel-image-2.6.8-1-686-smp 2.6.8-10, and samba 3.0.10-1. I smbmount a Windows 2003 share with MP3s. The DC is Windows 2003 in mixed mode. When playing many of these MP3s, there is a noticable delay and the following messages are logged into /var/log/message: Dec 22 13:03:24 roller kernel: smb_add_request: request [c0b0f660, mid=22535] timed out!

Hi! Is it possible to configure a negative TTL (number was not found in Dundi) for DUNDI? regards klaus

Dear R people, This is a possibly silly question, but the rgamma function takes the shape and scale arguments and simulates gamma rvs corresponding to those values, right? But the shape and scale parameters have to be positive, right? However, rgamma quite happily returns to me values for negative values of shape and scale, and in some cases returns negative values eg. > rgamma(1, 1, -1) [1]