similar to: natural cubic splines

Dear R-helpers, I have a number of point configurations representing skull shapes, but some of them contain superfluous points. I want to write a loop in which each configuration is plotted and I am asked to write the numbers of points that are superfluous. However, I don't know how to introduce this interactive element. Would you give me an advice? Best regards Ond?ej Mikula -- Ond?ej

Dear R-helpers, could anybody explain me briefly what is the difference between eigenvectors returned by 'eigen' and 'svd' functions and how they are related? Thanks in advance Ondrej Mikula

Dear r-helpers, I have a trouble with a package downloaded from sourceforge.net (namely the package 'kopls'). I installed it from the local zip file with the expected result > utils:::menuInstallLocal() package ?kopls? successfully unpacked and MD5 sums checked but when I tried to load it I obtained the following error message > require(kopls) Loading required package: kopls Failed

Hello, I am using R and the smooth.Pspline function in the pspline package to smooth some data by using natural cubic splines. After fitting a sufficiently smooth spline using the following call: (ps=smooth.Pspline(x,y,norder=2,spar=0.8,method=1) [the values of x are age in years from 1 to 100] I tried to check that R in fact had fitted a natural cubic spline by checking that the resulting

Dear r-helpers, I have a query regarding use of contrasts in MANOVA. summary(manova(model)) gives me only result of test for overall difference. Would you be so kind and give me a hint how to get the same test statistics (e.g.Pillai's) and P values for the predefined contrasts? Best regards Ondrej Mikula -- Institute of Animal Physiology and Genetics Academy of Sciences of the Czech

https://bugzilla.mindrot.org/show_bug.cgi?id=2039 Priority: P5 Bug ID: 2039 Assignee: unassigned-bugs at mindrot.org Summary: Give proper credits for ECDSA patch Severity: normal Classification: Unclassified OS: All Reporter: ondrej at sury.org Hardware: All Status: NEW Version:

https://bugzilla.mindrot.org/show_bug.cgi?id=2040 Priority: P5 Bug ID: 2040 Assignee: unassigned-bugs at mindrot.org Summary: Downgrade attack vulnerability when checking SSHFP records Severity: minor Classification: Unclassified OS: All Reporter: ondrej at caletka.cz Hardware: All

Hi, I was sure I sent this to openssh at openssh.com, but cannot find that email now in my Sent mailbox, so I am sending it to the developers list. I took a liberty and wrote an I-D with accompanying patch (with contributions from Ondrej Caletka) to support ECDSA in the SSHFP DNS resource record. The I-D is here: https://tools.ietf.org/html/draft-os-ietf-sshfp-ecdsa-sha2 (and the source XML

https://bugzilla.mindrot.org/show_bug.cgi?id=2041 Priority: P5 Bug ID: 2041 Assignee: unassigned-bugs at mindrot.org Summary: Check for SSHFP when certificate is offered. Severity: enhancement Classification: Unclassified OS: All Reporter: ondrej at caletka.cz Hardware: All Status: NEW

I have used LME to fit a mixed effects model on my data. The data has 274 subjects with 1 to 6 observations per subject. Time is not linearly associated with the outcome, so I used ns to fit a natural cubic spline with 3 auto knots. Subject and the natural cubic time of spline are both treated as random effects. This model has run without any problem, but now I would like to plot trajectories for

Dear list, is there a way how to add information to internal nodes (branching points) in dendrogram created via plot.agnes function (package cluster)? I wish to place colored circles on the nodes, but I don't know how to proceed... I'll be grateful for any suggestion Ond?ej -- Ond?ej Mikula Institute of Animal Physiology and Genetics Academy of Sciences of the Czech Republic Veveri 97,

Hello, I look for a simple command computing multivariate group means and returning an object of class "matrix" rather than "list". Does any such function exist in standard packages? I'm beginning with R, so I'm sorry if the solution is trivial. Ondra Mikula

Hi, I'm using natural cubic splines from splines::ns() in survival regression (regressing inter-arrival times of patients to a queue on queue size). The queue size fluctuates between 3600 and 3900. I would like to be able to run predict.survreg() for sizes <3600 and >3900 by assuming that the rate for <3600 is the same as for 3600 and that for >4000 it's the same as for

Dear R-helpers, I need two simple functions, I guess they exist in R, but I am unable to find them. The first function should cyclically rotate elements in a vector. ("guyrot" in the package "wavethresh" should do it, but there's some problem with its loading) The second function should rotate points in 2D by a given angle (about the defined point). Thanks for any advice

Hi, all I am trying to get the basis matrix and penalty matrix for natural cubic splines. In the "splines" package of R,"ns" can generate the B-spline basis matrix for a natural cubic spline. How can I get the basis matrix and penalty matrix for natural cubic spline. Thanks a lot! Lee [[alternative HTML version deleted]]

Suppose I have two var x and y,now I want to fits a natural cubic spline in x to y,at the same time create new var containing the smoothed values of y. How can I get it?

Hi, Everyboday, Does anybody know how to get the first derivative form the cubic natural spline matrix? Thanks !!! Jassy ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Nuoo-Ting (Jassy) Molitor, MS, Junior Statistician Division of Biostatistics Department of Preventive Medicine University of Southern California Tel: (323) 442-2584 1540 Alcazar St., CHP-210F Fax:

Hello, I am trying to set up Dovecot 2.0.9 on Fedora 14. The problem I would like to ask for resolution is that IMAP is not working when connecting to the server from another network. More precisely: - POP3 is working entirely OK, - IMAP is working OK when clients are connecting using local network addresses, like 192.168.0.100, - when a client connects from outside, thus using remote IP

Hello,        Dr. Simon Wood told me how to force a cubic spline passing through a point. The code is as following. Anyone  who knows how I can change the code to force the first derivative to be certain value. For example, the first derivative of the constrained cubic spline equals 2 at point (0, 0.6).        I really appreciate your help!        Thanks!                 Best             Victor   

Hello everyone,          Dr. wood told me that I can adapting his example to force cubic spline to pass through certain point.          I still have no idea how to achieve this. Suppose we want to force the cubic spline to pass (1,1), how can I achieve this by adapting the following code? # Penalized example: monotonic penalized regression spline ..... # Generate data from a monotonic truth.