similar to: kernel smoothing

Dear all, I want to solve a score function by using Newton-Raphson algorithm. Is there such a fucntion in R? I know there's one called optim, but it seems only doing minimizing or maximizing. Thanks, Jimmy

Hi R Users, I am very new to R and would like to do something quick if possible, please help! Suppose I have a data set of y versus x, how can I generate a smoothing line of y versus x (for example, using loess) and at the same time, generate a pair of confidence intervals for the smoothing or mean plus/minus standard deviation? Yi Zhu Golder Associates Inc. USA

Hello everone,            Anyone who knows how to force a cubic smoothing spline to pass through a particular point?            I found on website  someone said that we can use "cobs package" to force the spline pass through certain points or impose shape           constraints (increasing, decreasing). However,  this package is using  B-spline and can only do linear and quadratic

Dear UseRs: Recently, I have read an article regarding the association between age and lymph node metastases. http://jco.ascopubs.org/content/27/18/2931.long In statistical analysis, the authors stated "Because a nonlinear relationship between age and lymph node involvement was expected based on existing literature, lymph node involvement was also regressed on age using nonparametric

Hello, Anybody know the reason RedHat decided not to support the VIA Eden Processor? cat /proc/cpuinfo processor : 0 vendor_id : CentaurHauls cpu family : 6 model : 13 model name : VIA Eden Processor 500MHz I am testing, (using ayplus kernel) and get the following during bootup: Linux version 2.6.32-71.24.1.el6.centos.ayplus.1.i686 (build at 6beta32) (gcc versi

Hi all, I'm looking for smooth monotone estimation packages, preferably using splines. I downloaded the 'cobs' package and intend to use it, but since it offers only quadratic splines based on L1 minimization, I'd like to compare its performance to that of a more 'mainstream' cubic-spline, L2-norm minimizing spline. Preferably a smoothing spline. Does anyone know of such

Hi, Does GlusterFS implement the Linux VFS functionality. I know its a user space FS, but user space FS should also implement VFS funtions. Is this true also to GlusterFS ? Thanks -- - Ilans -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20170615/a29d0b2d/attachment.html>

Hi, I would like to compare the hazard functions of two samples using the Cox proportional hazards model. For sample 1 I have individual time-to- event data. For sample 2 I don't have individual data, but grouped data that allows to obtain a hazard function. I am wondering if there is an R function that allows to obtain a hazard ratio of the two hazard funtions (under the

Dear R users, I used R to draw many histograms and I would like to automatically save them into a jpeg file. I tried the following code since I know .ps file could be saved like this way: postscript("AYA_ELA.jpeg",horizontal=F,onefile=T) ......#some funtions inside here dev.off() There was a jpeg file, however, there is no pictures inside. Any suggestion? Thanks. Rebecca

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

Hi, I have a variable X classified in a lot of groups and I need to run the [fitdistr] funtion for each group. I tried with the [by] or the [tapply] funtions because my data is organize in two columns (variable and the groups), but neither of these command work. If somebody have a tip to help me up I really appreciate it. thanks, [[alternative HTML version deleted]]

Dear fellow R users, I am now investing time in learning how to use compiled C code to produces functions that can be used in R. I am just starting, and there is much that I need to learn, so I have a question that might be straight forward. I am learning how to use function in the C library GSL (gnu scientific library), to write C code, that I then plant to use in R. Is there any problem in

Hi, recently we upgraded a central RHEL 5 fileserver to the latest RH EL 5.1 rpms, including samba. (samba-3.0.23c-2.el5.2 update to samba-3.0.25b-1.el5_1.4) Now some users have the problem, that opening a word or excel file saved on a samba share takes up to 30 seconds. Today I could verify this on the users desktop XP PC. This problem occures only from time to time, so it may be also a

It sounds as thought you are interested in Hoyt's Anova which is a form of generalizability theory. This is usually estimated using by getting the variance components from ANOVA. > -----Original Message----- > From: r-help-bounces at stat.math.ethz.ch > [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Karl Knoblick > Sent: Tuesday, May 16, 2006 6:10 AM > To: r-help at

Dear all, I am new to R, and I am a biotechnologist, I want to fit a smoothing spline with smoothing parameter selected by generalized maximum likelihood. I was wondering what function implement this, and, if possible how I can find the fitted results for a certain point (or predict from the fitted spline if this is the correct language) -- View this message in context:

Hi there, How may I smooth spline two vectors with the smoothing parameter selected by generalized maximum likelihood (GML) .? Thanks a lot. -- View this message in context: http://r.789695.n4.nabble.com/Smoothing-spline-with-smoothing-parameters-selected-by-generalized-maximum-likelihood-tp4210679p4210679.html Sent from the R help mailing list archive at Nabble.com.

Hello together, first thanks a lot for your work. It's quite useful on some projects. I encouraged myself to ask you a question: Think I've seen Syslinux booting fli4l on Systems without keyboard, where "keyboard option" has been set to "not installed" in the Bios. There are lot of boards around, e.g. with award bios like those 486 UMC based on UMC 8881/8886, without

Hi,all I wrote a C function and now I want to plug in this in R. I know how to do this in Unix version R by typing something like "R CMD SHLIB foo.c" to compile this C code. Then I can load it by using dyn.load. But I don't know how to do it in a windows version R. Anyone can help me out here? I really appreciate. Thanks a lot! Chao

tags 439986 upstream thanks Hi Florian, 2007/8/29, Florian Forster <octo at verplant.org>: > Package: nut-dev > Version: 2.2.0-1 > Severity: minor > > After upgrading from version 2.0.something to version 2.2.0-1 the type > `UPSCONN' had been renamed to `UPSCONN_t'. This is a problem for > software that is supposed to work with different versions of this >

Dear all, I have a beginner's R question for coxph() and survfit(). I have a data set with survival time (no censoring) and treatment indicator(0/1). I did something like fit<-coxph( Surv(t)~treat, method="breslow",data=data) > fit Call: coxph(formula = Surv(t) ~ treat, data = data, method = "breslow") coef exp(coef) se(coef) z p treat -1.96