search for: polysplin

Hello, I wrote the function below to integrate polysplines and thought that it may be useful to others. Please consider this code released under the GPL2 or later. Thanks, Bill <<integrate.polySpline.R>> Notice: This e-mail message, together with any attachments, contains information of Merck & Co., Inc. (One Merck Drive, Whitehous...

...as a power function, and across another range (x-inf) it is a linear function. This would be predicted by one of our hypotheses, and we would like to find the AICs and weights for a piecewise function as described, compared with a power function across the entire range. I have looked into the polySpline function, however it appears to use only polynomials, instead of the nls models I have been using. Thanks in advance for any help you might be able to offer. Cheers, -Joe Waddell

...pace 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 anyone's ever come across this situation before, pointers would be much ap...

Dear listeRs; I am hoping to provide myself the ability to interpolate mortality estimates within intervals for a range of conditions and ages. I have four mortality tables derived from the Society of Actuaries 2001 VBT tables that contains interval mortality rates by starting age and year of duration. I would like to flexibly interpolate using a large set (~4MM) of ages and conditions

I'm sure I'm doing something completely boneheaded here, but I've used this idiom (constructing an interpolation spline and using prediction from a backSpline to find an approximation profile confidence interval) many times before and haven't hit this particular problem: r2 <- c(1.04409027570601, 1.09953936543359, 1.15498845516117, 1.21043754488875,

...toffersen) > 69. Re: Fitting linear models (Vemuri, Aparna) > 70. My surprising experience in trying out REvolution's R (Jason Liao) > 71. Blanchard Quah/Impulse Response Functions (Laura Carvalho) > 72. fitting assimptotic decaing with - and + on X (milton ruser) > 73. Polyspline Integration (Denney, William S.) > 74. DNAcopy package in R (Selena Niu) > 75. Re: Fitting linear models (Dimitri Liakhovitski) > 76. Re: Fitting linear models (Marc Schwartz) > 77. Re: Fitting linear models (Vemuri, Aparna) > 78. Re: bug when subtracting decimals? (hadle...

....R action: create D: file: /usr/local/lib/R/library/splines/R-ex/interpSpline.R action: create D: file: /usr/local/lib/R/library/splines/R-ex/ns.R action: create D: file: /usr/local/lib/R/library/splines/R-ex/periodicSpline.R action: create D: file: /usr/local/lib/R/library/splines/R-ex/polySpline.R action: create D: file: /usr/local/lib/R/library/splines/R-ex/predict.bSpline.R action: create D: file: /usr/local/lib/R/library/splines/R-ex/predict.bs.R action: create D: file: /usr/local/lib/R/library/splines/R-ex/splineDesign.R action: create D: file: /usr/local/lib/R/library/spl...

...html latex example bs text html latex example interpSpline text html latex example ns text html latex example periodicSpline text html latex example polySpline text html latex example predict.bSpline text html latex example predict.bs text html latex example splineDesign text html latex example splineKnots tex...