Re: [R] 2d approx

?interp in akima for f: R^2 -> R. url:www.econ.uiuc.edu/~roger Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678Champa

[R] ordered probit and cauchit

seems to be overkill... standard mle methods should be preferable. (??) Googling reveals that spss provides such functions... just to wave a red flag. url:www.econ.uiuc.edu/~rogerRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217

Re: [R] adding observations to lm for fast recursive residuals?

tran so it should be reasonably quick. HTH url:www.econ.uiuc.edu/~roger Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678Champaign

Re: [R] Sparse Matrices in R

Take a look at the package SparseM url:www.econ.uiuc.edu/~rogerRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678Champaign

Re: [R] readline, 64bit solaris build

Many, many thanks, ./configure is now happy, and make is chugging along url:www.econ.uiuc.edu/~rogerRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217

[R] readline, 64bit solaris build

d suggest a way to get readline going. url:www.econ.uiuc.edu/~roger Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678

Re: [R] nonlinear regression with M estimation

the package nlrq does median nonlinear regression... among other things. url:www.econ.uiuc.edu/~rogerRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244

Re: [R] plotting many line segments in different colors

?segments url:www.econ.uiuc.edu/~rogerRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678Champaign, IL 61820 On Jul 2, 2004

Re: [R] Inflection Points

take a look at predict.smooth.Pspline in the package pspline... url:www.econ.uiuc.edu/~rogerRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678

Re: [R] R can't find some functions in assist package

An R-News or J. of Statistical Software note titled, "Getting to the Source of the Problem" detailing the basic strategies for these adventures in the new world of S4 methods and namespaces would be very useful. url:www.econ.uiuc.edu/~roger Roger Koenker emai

Re: [R] Goodness of fit test for estimated distribution

hat matter. url:www.econ.uiuc.edu/~roger Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678Champaign, IL 61820 On Jun 29, 2004,

Re: [R] Quantile Regression in R

.) send questions about packages to the maintainer, not R-help b.) not attach datasets in modes that are stripped by R-help c.) make a token effort to read the documentation and related literature url:www.econ.uiuc.edu/~rogerRoger Koenker email [EMAIL PROTECTED

Re: [R] R via ssh login on OS X?

schadenfreude that Stata's Mac version does seem to make it impossible to run remotely even though their other unix versions are happy to do so. url:www.econ.uiuc.edu/~roger Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333

Re: [R] Matrix: Help with syntax and comparison with SparseM

. url:www.econ.uiuc.edu/~roger Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678Champaign, IL 61820 On Jun 25, 2004, at 2:30 AM, Nicholas Lewi

Re: [R] Rotate a plot generated by wireframe

For this sort of thing the package rgl is the way to go... url:www.econ.uiuc.edu/~rogerRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678

Re: [R] Initializing SparseM matrix matrix.csc

a": [1] 0 3 Slot "ja": [1] 1 4 Slot "ia": [1] 1 2 2 3 3 3 Slot "dimension": [1] 5 4 > as.matrix(A) [,1] [,2] [,3] [,4] [1,]0000 [2,]0000 [3,] 0 003 [4,]0000 [5,]0000 url:www.econ

Re: [R] fit.mult.impute and quantile regression

utation in transcan, maybe Frank could advise on this? url:www.econ.uiuc.edu/~roger Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:21

Re: [R] optimize linear function

plex (exterior point) methods). url:www.econ.uiuc.edu/~roger Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678Champaign, IL 61820

Re: [R] Nonlinear robust regression

The package nlrq does nonlinear l1 regression. This isn't robust in the design directions, but is in the response direction. url:www.econ.uiuc.edu/~roger Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333

Re: [R] sporadic errors with nlrq() / optim()

thod = "L-BFGS-B", lower = 0, upper = 1, Step = Step, model = model, pars = Pars, control = optim.ctrl) 2: nlrq.calc(m, ctrl, trace) 1: nlrq(y ~ SSfpl(x, A, B, xmid, scal), data = test) Roger url:www.econ.uiuc.edu/~rogerRoger Koenker email [EMAIL PROTECTE

Re: [R] R versus SAS: lm performance

I would be curious to know how sparse the model.matrix for this problem is... Unless it is quite dense, or as Brian implies quite singular, I might suggest computing a Cholesky factorization in SparseM. url:www.econ.uiuc.edu/~rogerRoger Koenker email [EMAIL PROTECTED

Re: [R] need help with smooth.spline

re allowed, but the roughness penalty is total variation of the derivative, or gradient in the bivariate case, so sharp kinks are permitted. url:www.econ.uiuc.edu/~roger Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:21

Re: [R] need help with smooth.spline

es are not very appropriate however you choose to do the smoothing. url:www.econ.uiuc.edu/~roger/my.html Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:

Re: [R] load data for mypkg-Ex.R

x27;m finding this also an issue in writing vignettes, but my main concern is finding a good way to handle this in writing .Rd files. url:www.econ.uiuc.edu/~roger/my.html Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333

Re: [R] Sparse matrix row/column access (SparseM)?

me) and only in cases of non-response to r-help. url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678

[R] edit windows in RAqua

would leave the console active or some equivalent functionality. url:www.econ.uiuc.edu/~roger/my.html Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:

Re: [R] How to create Voronoi-Polygons ?

One should doubt everything, even logic, and in doubt lies possibility. url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244

Re: [R] How to create Voronoi-Polygons ?

polygon(xx[inhull],yy[inhull] ,col=cfit[i]) } } } url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-24

Re: [R] excluding libraries at configure

Thanks Thomas...but it was simpler that this...as Don MacQueen suggested it was just a matter of renaming /sw and then reconfiguring... url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558

[R] excluding libraries at configure

b on the g4 contains lots of stuff from the prior jaguar installation, and ./configure wants to include -L/sw/lib. So my question is this: is there way to tell configure politely to not look in /sw/lib? Or is there another suggestion entirely? url:www.econ.uiuc.edu/~roger/my.html

RE: [R] plot map of areas

or tripack perhaps... url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678Champaign, IL 61820

RE: [R] nls, nlrq, and box-cox transformation

ww.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678Champaign, IL 61820

[R] Re: nlrq problem

there is the same problem, however you can adjust for the jacobian by rescaling by the geometric mean of the response. I hope that this helps. Roger url:www.econ.uiuc.edu/~roger/my.html Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333

Re: [R] Change in 'solve' for r-patched

7; \emph{ORSA J. on Computing}, 6, 23--27. url:www.econ.uiuc.edu/~roger/my.html Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678Cha

Re: pre-compiled win binaries (was: Re: [R] Quantreg Package)

roblems! Roger url:www.econ.uiuc.edu/~roger/my.html Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678Champaign, IL 61820 On T

Re: [R] Quantreg Package

I'm not sure why quantreg isn't in the windows binaries on CRAN, perhaps Uwe can explain this...if there is a problem I'd be happy to try to help, but I don't have access to a windows machine myself. url:www.econ.uiuc.edu/~roger/my.html Roger Koenker emai

Re: [R] Polynomial lags

For what it is worth, I would have thought that expressing the lag coefficients in a B-spline expansion would be preferable to going back to Almon approach. This would give a relatively simple lm() application. url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL

Re: [R] predicted values from rq

ope that this helps. Roger PS. Generally help inquiries about packages are directed to maintainers in the first instance and then to R-help in desperation. This probably helps explain there was no response. url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED]

Re: [R] Solving a tridiagonal system

SparseM is really intended for arbitrary sparse structure, for banded structural there are much more efficient methods, some of which are, if I'm not mistaken, now available in lapack. url:www.econ.uiuc.edu/~roger/my.html Roger Koenker email [EMAIL PROT

Re: [R] Reverse axis in xyplot()

/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678Champaign, IL 61820 On Thu, 18 Sep 2003, Arni Magnusson wrote: > Creatin

Re: [R] macosx install problem

This was resolved by simply doing: cd /usr/local/lib rm -r R cd /usr/local/R/R-devel make install url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558

[R] macosx install problem

elcome. Roger url:www.econ.uiuc.edu/~roger/my.html Roger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678

[R] title expressions

o appear. What then? Undoubtedly I'm missing something blindingly obvious with lists, but having tried several versions unsuccessfully I thought I would defer to the collective expertise of R-help. Thanks in advance. url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker

[R] Quantile Regression Packages

thods. The package "nprq" is joint work with Pin Ng of Northern Arizona University. Comments and suggestions, as always, would be most welcome. url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:2

Re: [R] ks.test()

e transformation twice > > new <- qnorm(pexp(old)) And if old is exponential, but not standard exponential? url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558

Re: [R] ks.test()

h due to Khmaladze (1981) based on the Doob-Meyer decomposition - this is the closest thing that I'm aware of for handling KS type tests with estimated parameters in a general context. url: www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] D

Re: [R] Seeking Packaging advice

at one can't always rely on the ratfor preprocessing that is provided by systems even when it exists. url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558Univer

Re: [R] Package Reference Manuals

It seems that I can get (almost) what I want using the utility R CMD Rd2dvi packagename url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of

[R] Package Reference Manuals

Is it possible for the average user to generate the latex version of the table of contents page that appears in the Package Reference Manuals on the CRAN website? Or is this (yet another) a Viennese speciality? url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL

Re: [R] Re: Oja median

ersion of Oja which replaces the lm() call with a median regression call. url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244-6678

[R] Re: Oja median

- rep(0,p) for(i in 1:p) x[i] <- ((-1)^(i+p)) *det(B[-i,-p]) return(x) } url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558Unive

Re: [R] 3D pie

R-help Readers might also find amusing the new Tufte paper: "The Cognitive Style of PowerPoint", available from www.edwardtufte.com. (This is a non-commercial announcement.) url:www.econ.uiuc.edu/~roger/my.html Roger Koenker email [EMAIL PROTECTED]

Re: [R] Prediction Intervals (reposting)

)*((1-x)/5) require(quantreg) abline(rq(y~x,tau=.9)$coef[,1]) abline(rq(y~x,tau=.1)$coef[,1]) the resulting band contains 80 percent of the sample observations. You can get some further details from ?rq and the references their. url:www.econ.uiuc.edu/~roger/my.htmlRoger

[R] Oja median

ugging check for proposed algorithms. Obviously, the expansion of the determinant gives the same formulation for p>2, the challenge is to find a clean way to generate the design matrix and response vector for the general setting. Bon weekend! url: www.econ.uiuc.edu/~rog

Re: [R] BHHH algorithm

the original reference is: Berndt, Hall, Hall and Hausman, (1974) Annals of economic and social measurement 3, 653-665. url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558

Re: [R] median and joint distribution

of comonotone X and Y as "perfectly concordant" in the language of rank correlation. url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University o

Re: [R] "lean and mean" regression {was "Memory size"}

itself creates memory problems even before one tries to hit it with the QR hammer. url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker email [EMAIL PROTECTED] Department of Economics vox:217-333-4558University of Illinois fax:217-244

Re: [R] robust regression (l1fit)

lways better alternatives to [any specified procedure]. So until someone produces a very convincing argument for the universal applicability of one particular procedure for robust regression, I would plea for "letting 100 flowers bloom and 100 schools of thought contend." url:www

Re: [R] (no subject)

a problems need only store the non-zero elements of X and computational effort on such problems should grow roughly proportionally to the number of these non-zero elements. Roger url:www.econ.uiuc.edu Roger Koenker Dept. of Economics UCL, email [EMAIL PROTECTED] Departme

[R] terms.formula

about stripping off the qss components for subsequent use. url:www.econ.uiuc.edu Roger Koenker Dept. of Economics UCL, email [EMAIL PROTECTED] Department of Economics Drayton House, vox:217-333-4558University of Illinois 30 Gorden St, fax:217

Re: [R] error-handling question

look at ?try url:www.econ.uiuc.edu Roger Koenker Dept. of Economics UCL, email [EMAIL PROTECTED] Department of Economics Drayton House, vox:217-333-4558University of Illinois 30 Gorden St, fax:217-244-6678Champaign, IL 61820

Re: [R] Pretty onscreen plots?

I have also been using pdf() and pdflatex ... the nice post processing of ppower4 gives pdf files that have considerable flexibility. See www.phys.uni-paderborn.de/~stern/ppower for an example url:www.econ.uiuc.edu Roger Koenker Dept. of Economics UCL, email

Re: [R] Help!!

If you have a dominating density, ie another density, say g, such that cg(x) On Tue, 28 Jan 2003 16:01:06 +, you wrote in message > <[EMAIL PROTECTED]>: > > > > >Dear R ers, if some can tel me how I can generate a sample from a given > >density. I have a complex 2D density function en I want t

Re: [R] density estimation

but I can't figure out how to get a density function from the estimator. I would suggest that you look at the logspline package. The density estimation is excellent and simulation methods are provided. url:http://www.econ.uiuc.edu Roger Koenker email [EMAIL PROT

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