search for: polymars

...---------- Making package polsplineRS ------------ adding build stamp to DESCRIPTION making DLL ... making hareall.d from hareall.c making heftall.d from heftall.c making lsdall.d from lsdall.c making lspecall.d from lspecall.c making nlsd.d from nlsd.c making polyall.d from polyall.c making polymars.d from polymars.c gcc -Ic:/PROGRA~1/R/R-24~1.1/include -Wall -O2 -std=gnu99 -c hareall.c -o hareall.o hareall.c: In function `gremdim': hareall.c:2127: warning: unused variable `x' hareall.c: In function `compall': hareall.c:1656: warning: 'lala' might be used uninitialized...

Hi All, I can't quite figure out how to change the parameters of the x and y axes when I plot a polymars object. I want to add a scatterplot of the data points, but the polymars plot seems to automatically set the parameters to fit the polymars line. I've tried using plot(poly,1,fig= c(x1,x2,y1,y2)) but have no luck. Any thoughts? Thanks, Ryan -----------------------------------------------...

Can you help me interpret the output I get with "polymars"? I'd like to find a regression model to predict 2 dependent variables (then called Y1 and Y2) with 2 independent variables (then called X1 and X2). Here is the output: polymars(responses = data[, 13:14], predictors = data[, 2:3]) Model fitting 0/1 size RSS 1 RSS 2...

Does the polymars library exist anymore? I see reference to it at http://rweb.stat.umn.edu/R/doc/html/packages.html, but not on CRAN (looked in contrib and contrib/Old). -- Rob Schick Ecologist NOAA Fisheries Santa Cruz Lab 110 Shaffer Road Santa Cruz, CA 95060 Phone: 831.420.3960 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-....

I've seen references to "polymars", an R implementation of Friedman's MARS algorithm. Can anyone tell me where I might be able to find this (doesn't seem to be in the contributed packages. Thanks, David -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http:...

Hi, I am working on a modeling project for PMI-Australia and interested in using R, especially POLYMARS or PLYCLASS. I use SAS /PC on WINDOWS for the statistical analyses including Modeling. I got R downloaded to the system but can't figure out how to interface with SAS so that I could use SAS datasets already in place. Also I could not find POLYMARS on the library packages. I need to know which...

I was able to hack the code in the polspline package in order to change the plot.polymars function so that I can set the limits of my y-axis. However, I was only able to do this by entering plot.polymars in R, copying the code to Word, changing what I needed, and then pasting the new code in R to redefine the polt.polymars function. I was able to successfully change the function, but n...

Dear all, I have a question on how to set up the starting model in POLYCLASS and make sure the terms in the starting model retained in the final POLYCLASS model. In the function POLYMARS, this can be done using the STARTMODEL option. See below for example, I started with model y= b0 + b1*X1 + b2*X2 + b3*X4 + b4*X5 + b5*X2*X5 + e > m00 <- matrix(c( 1, NA, 0, NA, 1, 2, NA, 0, NA, 1, 4, NA, 0, NA, 1, 5, NA, 0, NA, 1, 2, NA, 5, NA, 1...

...of what I wanted to test and gives me splits at abundance values, not carapace length values. > turtle.rtree<-rpart(turtle.data$Clength~., data=prey.data, method="anova", maxsurrogate=0, minsplit=8, minbucket=4, xval=10); plot(turtle.rtree); text(turtle.rtree) > I've heard polymars recommended for this sort of situation. I've downloaded the polyspline library, but get bogged down in the equation. Also, it doesn't seem like polymars will generate a tree even if I do get it working. Can rpart be modified in some way to accomodate multiple response parameters? If any...

Hi.., is there a function in R to fit bivariate splines ? I came across 'polymars' (POLSPLINE) and 'mars' (mda) packages. Are these the one to use or are there other specific commands? Thanks. Harsh

...event.chart exactRankTests fastICA fdim fields foreign fracdiff gafit gee geoR gld gregmisc gss ineq leaps lgtdl lmtest locfit logspline lokern lpridge maptree maxstat mclust mda meanscore mgcv mlbench muhaz multiv mvnmle mvtnorm netCDF nlme nlrq norm odesolve oz panel pcurve permax pinktoe pixmap polymars polynom princurve pspline quadprog quantreg rmeta rpart rpvm scatterplot3d sem sgeostat sm sma sn sna splancs sptests spweights strucchange survival tensor tree tripack tseries twostage vegan wavethresh wle xgobi xtable zmatrix -------------- next part -------------- An HTML attachment was s...

I would like to know if someone has done work on trees with multivariate response. I need something like rpart but for vector responses. If someone has code that he/she is willing to share, I would be grateful. If not, even guidelines for writing my own starting from rpart would be welcomed. ft. -- Fernando TUSELL e-mail: Departamento de

Are there any libraries in R that can do discriminant analysis? Lily Elloso Research Division Statistical Research and Training Center (SRTC) Quezon City, Philippines -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in

Hello all, I'm trying to find out how to perform a 'segmented regression'. I have some data and the 'classical' model used is: y(t) = a + bx(t) + cx(t)^2 + u(t) for x(t) < x(0) y(t) = a + bx(0) + cx(0)^2 + d(x(t) - x(0)) + u(t) for x(t) > x(0) and u(t) = rho.u(t-1) + eps (It's a model using an ARIMA-model, in this case AR(1)-process) The parameters to estimate here

Hello, Apologies if this question has already arised, hope you can help me to the find the solution to this or point the place to look at. I have a multidimensional piece-wise regression linear problem, i.e. to find not only the regression coefficients for each "interval" but also the beginning and ends of the intervals. To simplify it to the one dimensional case and two intervals,

Hi there, Does R has built-in codes for nonpara. bivariate regression so that I can estimate the joint distribution of two variables as a function of some covariates? Thanks a lot. --------------------------------------------------- Ximing Wu Department of Economics University of Guelph Guelph, Ontario, Canada, N1G 2W1 Tel: (519) 842-4120, ext 53014 Fax: (519) 763-8497 email: xiwu at

...Exploratory Data Analysis gee Generalized Estimating Equation models integrate numerical integration leaps Regression subset selection locfit Local Regression, Likelihood and Density Estimtion. mva Classical Multivariate Analysis polymars (polychotomous) regression based on Multivariate Adaptive Regression Splines polynom A collection of functions to implement a class for univariate polynomial manipulations spatial functions for kriging and point pattern analysis splines Regres...

...Exploratory Data Analysis gee Generalized Estimating Equation models integrate numerical integration leaps Regression subset selection locfit Local Regression, Likelihood and Density Estimtion. mva Classical Multivariate Analysis polymars (polychotomous) regression based on Multivariate Adaptive Regression Splines polynom A collection of functions to implement a class for univariate polynomial manipulations spatial functions for kriging and point pattern analysis splines Regres...

Dear R listers, When using smooth.spline to interpolate data, results are generally good. However, some cases produce totally unreasonable results. The data are values of pressure, temperature, and salinity from a probe that is lowered into the ocean, and the objective is to interpolate temperature and salinity to specified pressures. While smooth.spline provides excellent values at the

Here are a few comments on the new release (1.2.0), most about R CMD check. I have managed to install and check my libraries only making one change to a C function (see point 1) and one to an R function because of the way formulae now look for their data. That is the good news. Of course, more extensive checks are liable to find further problems. 1. I need to be able to define F77_SYMBOL. This