search for: lfun

...If anyone has or is familiar with this paper, could they provide the main program code for how the "newton" function would be called in their example on page 500 of the paper. The authors are extremely clear in their writing and the paper is quite an eye opener for me but it seems like lfun somehow needs to be initialized so that it "grabs" the environment of "Rmklike". I'm not sure how one would go about doing this so I am wondering what the main program that calls "newton" would be if there was one. Thanks. Mark --------------------------------...

...dist <- datadist(age, blood.pressure, cholesterol, sex) options(datadist='ddist') fit <- lrm(y ~ blood.pressure + sex * (age + rcs(cholesterol,4)), x=TRUE, y=TRUE) p <- Predict(fit, age, cholesterol, sex='male', np=50) # vary sex last bp.plot <- bplot(p, lfun=contourplot) bp.plot I have tried a variety of efforts at using update (which I assume is a lattice function although I can find no help page for it. It does appear in some of the lattice hep pages and my understanding is that it pushes objects onto the list structure of a plot object. I'...

...x)<-'numeric' vel<-ux[,1] ang<-ux[,2] x<-ux[,3] y<-ux[,4] dat<- data.frame(ang=ang, x=x,y=y) require(rms) ddist2 <- datadist(dat) options(datadist="ddist2") fitn <- lrm(ang ~ rcs(x,4) + rcs(y,4), data=dat) predi <- Predict(fitn, x, y) bplot(predi,lfun=wireframe, screen = list(z = -40, x = -80), drape=TRUE)* The file 2dcali_red.ttt consists of 4 columns can be found here : http://www.color-space.de/upload/dl/2dcali_red.ttt link The code gives me the bplot-figure, which looks like this: http://r.789695.n4.nabble.com/file/n4544050/Screen_shot_2...

Hi there, I ran the following code: vols=read.csv(file="C:/Documents and Settings/Hugh/My Documents/PhD/Swaption vols.csv" , header=TRUE, sep=",") X<-ts(vols[,2]) #X dcOU<-function(x,t,x0,theta,log=FALSE){ Ex<-theta[1]/theta[2]+(x0-theta[1]/theta[2])*exp(-theta[2]*t) Vx<-theta[3]^2*(1-exp(-2*theta[2]*t))/(2*theta[2]) dnorm(x,mean=Ex,sd=sqrt(Vx),log=log) }

Hi all, I have some little questions. 1) I make a function, with list's help, for make a map, its work OK, but it show an extra output of this: lapply(split(dataset,dataset$trajectory),lfun) Is possible to eliminate any text output from an function? 2) I try to put an equation on a object to use in curve for example, but it don't work, it possible to make a object of an equation? ex. fx <- a + b*x for(a in 0){for(b in 1){curve(fx,...)}} 3) Exist in R any functions to esti...

Dear All, I would like to plot a scalar (e.g. a temperature) on a non-rectangular domain (or even better: I would simply like to be able to draw a contour plot on an arbitrary 2D domain). I wonder if there is any tool to achieve that with R. I did some online search in particular on the list archives, found several queries similar to this one but was not able to find any conclusive answer. I

Hi all, I need a little help for construct an state's map on R. The first problem is to get the data. I have a datafile of longitude and latitude in the follow format: trajectory latitude longtude T -22.045618 -51.287056 T -22.067078 -51.265888 T -22.067039 -51.207249 T -22.059690 -48.089695 T -22.075529 -48.074608 T -22.072460 -48.044472 T -22.062767 -48.298473 T -22.077349