search for: marron

...s line, over-plotted with several values of bandwidth, 'f <- seq(0.3, 0.9, by=0.1)'. At this point, we have no models for these data. I wonder if there is any way under R to assign some sort of confidence interval to the lowess line. For example, I have seen a method from the lab of J.S.Marron, which his group has implemented in the Matlab program, SiZer. http://www.stat.unc.edu/faculty/marron/DataAnalyses/SiZer_Intro.html and, the more interesting: http://www.stat.unc.edu/faculty/marron/DataAnalyses/SiZer/SiZer_Basics.html An implementation under R of SiZer would obviously answer th...

Hi, does anybody know of a nice test to detect trend turning points in time series? Possibly with reference? Thanks, joerg

I have been authoring a very small R package on CRAN, named "normix" which implements an S3 class "norMix" has plot and print methods; further, E[X] and Var[X] methods, random number generation ("r") and density evaluation. It also provides the 16 "Marron-Wand densities" (known in the (1d) density estimation business). Erik J?rgensen has provided "p" and "q" functions -- such that there's now the full range of "dpqr" functionality. I have recently *renamed* the package to 'nor1mix' (now on CRAN where &...

...different degrees of smoothness, different tail behaviour, different number of modes, with and without infinite peaks and also some standard densities like the normal and the uniform. There is also a small intersection (e.g. the claw density) with the collection of normal mixtures introduced by Marron and Wand and implemented in R in the package "nor1mix". Similar to the test bed functions by Donoho and Johnstone (Blocks, Bumps etc.) commonly used in regression or the "Peppers" and "Lena" images popular in image analysis, the densities in this collection should be...

I have been authoring a very small R package on CRAN, named "normix" which implements an S3 class "norMix" has plot and print methods; further, E[X] and Var[X] methods, random number generation ("r") and density evaluation. It also provides the 16 "Marron-Wand densities" (known in the (1d) density estimation business). Erik J?rgensen has provided "p" and "q" functions -- such that there's now the full range of "dpqr" functionality. I have recently *renamed* the package to 'nor1mix' (now on CRAN where &...

Dear all, I am considering a problem related to density regression. After we got the estimation of probability density function f(x), how can we estimate the mode of that population? Does the sm package support mode estimation? If not, is there any other function in R can estimate the mode according to the estimation of pdf f(x)? Univariate case is ok. If the function further support higher

This might be of interest: http://math.usu.edu/~minnotte/research/software/modetree.r (I was not able to get to the link, but google has a cached version.) Prof. Marron's SiZer maps may also be of interest, but AFAIK the code is in Matlab only. Andy From: Dan Rabosky > > > Hello... > > Is it possible to use "density" or another kernel density > estimator to > identify the mode of a distribution? When I use 'density...

...different degrees of smoothness, different tail behaviour, different number of modes, with and without infinite peaks and also some standard densities like the normal and the uniform. There is also a small intersection (e.g. the claw density) with the collection of normal mixtures introduced by Marron and Wand and implemented in R in the package "nor1mix". Similar to the test bed functions by Donoho and Johnstone (Blocks, Bumps etc.) commonly used in regression or the "Peppers" and "Lena" images popular in image analysis, the densities in this collection should be...

Estimados usurios-R: Tengo una lista de alumnos. Hay alguna forma de sacar una tabla de frecuencias por la asistencia a clases mensual. Es decir cuantos días concurrió cada alumno en el mes. Supongamos que la lista está conformada por ocho alumnos, el curso duró 4 días y quiero saber cuantos días concurrió cada uno al curso poniendolo en la columna mes. Quisiera obtener un cuadro así: Alumnos

...Ravi Iyer (University of Illinois at Urbana-Champaign, USA) Vana Kalogeraki (Athens University of Economics and Business, Greece) Jeff Kephart (IBM, USA) Emre Kiciman (Microsoft Research, USA) Charles Lefurgy (IBM Research, USA) Yunhao Liu (Hong Kong University of Science and Technology, HK) Pedro Marron (Duisburg, Germany) Milan Milenkovic (Intel, US) Dejan Milojicic (HP Labs, USA) Priya Narasimhan (Carnegie Mellon University, USA) Manish Parashar (Rutgers University, USA) Ana Radovanovic (Google, USA) Anders Robertsson (Lund, Sweden) Masoud Sadjadi (Florida International University, USA) Karsten...

...Ravi Iyer (University of Illinois at Urbana-Champaign, USA) Vana Kalogeraki (Athens University of Economics and Business, Greece) Jeff Kephart (IBM, USA) Emre Kiciman (Microsoft Research, USA) Charles Lefurgy (IBM Research, USA) Yunhao Liu (Hong Kong University of Science and Technology, HK) Pedro Marron (Duisburg, Germany) Milan Milenkovic (Intel, US) Dejan Milojicic (HP Labs, USA) Priya Narasimhan (Carnegie Mellon University, USA) Manish Parashar (Rutgers University, USA) Ana Radovanovic (Google, USA) Anders Robertsson (Lund, Sweden) Masoud Sadjadi (Florida International University, USA) Karsten...