search for: basis

hi Using a ts or tprs basis, I expected gcv to decrease when increasing the basis dimension, as I thought this would minimise gcv over a larger subspace. But gcv increased. Here's an example. thanks for any comments. greg #simulate some data set.seed(0) x1<-runif(500) x2<-rnorm(500) x3<-rpois(500,3) d<-runif...

Hey, R-listers, I have a question about determining the orthogonal basis vectors. In the d-dimensinonal space, if I already know the first r orthogonal basis vectors, should I be able to determine the remaining d-r orthognal basis vectors automatically? Or the answer is not unique? Thanks for your attention. Fred

Dear R-hep, I'm trying to get the first derivative of a smooth from a gam model like: model<-gam(y~s(x,bs="cr", k=5)+z) and need the derivative: ds(x)/dx. Since coef(model) give me all the parameters, including the parameters of the basis, I just need the 1st derivative of the basis s(x).1, s(x).2, s(x).3, s(x).4. If the basis were generated with the function spline.des() from the spline library I would be able to get the derivative of the basis and would be pretty much done. (spline.des() has the option of computing 1st derivative)...

https://bugzilla.samba.org/show_bug.cgi?id=4080 Summary: rsync can't find basis dirs with -n and nonexistent destination Product: rsync Version: 2.6.9 Platform: All OS/Version: All Status: NEW Severity: normal Priority: P3 Component: core AssignedTo: wayned@samba.org...

Hi, there, I have 5 datasets. I would like to choose a basis spline with same knots in GAM function in order to obtain same basis function for 5 datasets. Moreover, the basis spline is used to for an interaction of two covarites. I used "cr" in one covariate, but it can only smooth w.r.t 1 covariate. Can anyone give me some suggestion about how to...

...hey don't provide examples in R or Splus at all. Specifically, I don't know how to provide data "x" to the "ns" function in R, and I don't understand what should be the output matrix, and how to use the output matrix to "filter" data? Books mention about basis matrix, design matrix, model matrix, data matrix, etc. I got lost. I presume the output of the "ns" function in R is "basis matrix", but then how do I use it? How to form tensor-product? I don't understand it at all. Please help me! Thank you very much! [[alternative...

https://bugzilla.samba.org/show_bug.cgi?id=13083 Bug ID: 13083 Summary: [PATCH] Use both partial file + basis file Product: rsync Version: 3.1.3 Hardware: All OS: All Status: NEW Severity: normal Priority: P5 Component: core Assignee: wayned at samba.org Reporter: ben.rubson at gmail.com QA...

https://bugzilla.samba.org/show_bug.cgi?id=5644 Summary: Option to recheck basis dirs for existing dest files Product: rsync Version: 3.1.0 Platform: All OS/Version: All Status: NEW Severity: enhancement Priority: P3 Component: core AssignedTo: wayned@samba.org ReportedBy: matt@matt...

https://bugzilla.samba.org/show_bug.cgi?id=14109 Bug ID: 14109 Summary: Support Custom Fuzzy Basis Selection Algorithm Product: rsync Version: 3.1.3 Hardware: All OS: All Status: NEW Severity: normal Priority: P5 Component: core Assignee: wayne at opencoder.net Reporter: lonniebiz at yaho...

Dear everybody, How can I transform numbers to a positional system with the base of, e.g., nine, and do further operations with them? Thank you in advance Yours, sincerely Mag. Ferri Leberl

https://bugzilla.samba.org/show_bug.cgi?id=5645 Summary: Optimization-only basis dirs that don't affect itemization Product: rsync Version: 3.1.0 Platform: All OS/Version: All Status: NEW Severity: enhancement Priority: P3 Component: core AssignedTo: wayned@samba.org...

https://bugzilla.samba.org/show_bug.cgi?id=4037 Summary: Rsync should obey --keep-dirlinks when searching basis dirs Product: rsync Version: 2.6.9 Platform: All OS/Version: All Status: NEW Severity: normal Priority: P3 Component: core AssignedTo: wayned@samba.org ReportedBy: hashproduct+rsync@...

--- On Mon, 3/12/12, aleksandr shfets <a_shfets at mail.ru> wrote: > From: aleksandr shfets <a_shfets at mail.ru> > Subject: Fwd: Re[2]: [R] B-spline/smooth.basis derivative matrices > To: "Vassily Shvets" <shv736 at yahoo.com> > Received: Monday, March 12, 2012, 5:15 PM > > > > -------- ???????????? ????????? > -------- > ?? ????: aleksandr shfets <a_shfets at mail.ru> > ????: vito.muggeo <vito.muggeo a...

I'm implementing this capability to allow switching between mips32 and mips16 code generation on a per function basis (should be useful for arm to thumb switching too). The problem is that while various things are done on a per function basis, there are two passes registered on a per module basis (target lowering and instruction selection). With the new attribute scheme, we can wake up to reset target or sub...

Dear All Can you please do me favor and let me know how can I compare two files but not in line-by-line basis on my CentOS server ? I mean say row#1 in file1 has the same data as say row#5 in file2 , but the comm compares them in line-by-line basis that is not intended . It seems that the diff cannot do the job as well . Thank you in advance -------------- next part -------------- An HTML attachment was sc...

I am writing my thesis with the function gam(), with the package {mgcv}. My command is: gam(y~s(x1,bs="cr")+s(x2, bs="cr")). I need help to know what are the default basis funcitons for gam. I have not found any detailed reference for this. Can anyone help me with this?? -- View this message in context: http://www.nabble.com/help%3A-what-are-the-basis-functions-in-%7Bmgcv%7D%3A-gam--tp22673295p22673295.html Sent from the R help mailing list archive at Nabble.com.

Apologies if this is this too obscure for R-help. In package splines, ns(x,,knots,intercept=TRUE) produces an n by K+2 matrix N, the values of K+2 basis functions for the natural splines with K (internal) knots, evaluated at x. It does this by first generating an n by K+4 matrix B of unconstrained splines, then postmultiplying B by H, a K+4 by K+2 representation of the nullspace of C (2 by K+4), which contains the 2nd derivatives of the unconstrai...

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Dear all, for demonstration purposes I want to display the basis functions used by a thin plate regression spline in a gamm model. I've been searching the help files, but I can't really figure out how to get the plots of the basis functions. Anybody an idea? Some toy code : require(mgcv) require(nlme) x1 <- 1:1000 x2 <- runif(1000,10,500) fx1 &...

I have a question about the basis functions of cubic regression spline in mgcv. Are there some ways I can get the exact forms of the basis functions and the penalty matrix that are used in mgcv? Thanks in advance! Yan [[alternative HTML version deleted]]