search for: tkspline

I have some data fit to a smooth.spline object as follows: (x=vector of data for the predictor variable, y=vector of data for the response variable) fit <- smooth.spline(x,y) Now, given a spline fit point y_new, I want to be able to find out what value of x_new yielded this fit value. How to do so? (This problem is the inverse of the predict.smooth.spline function, which takes x_new as input

Dear R People: Could someone recommend a small example for spline regression, please? I would like to show this to my students, step by step. Thanks in advance, Erin -- Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: erinm.hodgess at gmail.com

...an get a general feel of how they would look when printed non-color, or copied, etc. SensSpec.demo, a demonstration of how to compute positive and negative predictive value from sensitivity, specificity, and prevelance using a virtual population rather than Bayes Theorem and algebra. TkApprox and TkSpline, GUI wrappers to the approxfun and splinfun functions that graph your data, the predictions, and allow you to drag reference lines on the plot to show the predicted values, differences, and derivatives. tkprogress, a utility to create and update a progress bar to show how far through a loop or oth...

...an get a general feel of how they would look when printed non-color, or copied, etc. SensSpec.demo, a demonstration of how to compute positive and negative predictive value from sensitivity, specificity, and prevelance using a virtual population rather than Bayes Theorem and algebra. TkApprox and TkSpline, GUI wrappers to the approxfun and splinfun functions that graph your data, the predictions, and allow you to drag reference lines on the plot to show the predicted values, differences, and derivatives. tkprogress, a utility to create and update a progress bar to show how far through a loop or oth...

Hey all, Suppose a=b^2 for starters. I want to be able to create a graph that displays a initially and if i was to click on 'a' to show 'b' on the chart itself. Does anyone know if this is possible in R? Also as an extension (not necessary as yet) to output the above into a 'html' file. Thanks, Sachin --- Please consider the environment before printing this email ---