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Hi ! There used to be a package called mle for maximum likelihood estimation. I couldn't find it when I tried to get the package. Is this still available? Perhaps under another package? I'd appreciate any suggestion on this...

Dear R-users, are there pre-programmed packages that implement integer maximization? A preliminary google search didnt uncover anything that seemed to match. I want to solve something like Max{U(x) + beta*U(x+y)} with respect to y...

Hi All, I have found the function poly(), that computes orthogonal polynomials. I was wondering if there are users of this function on the list. What kind of an orthognal polynomial is this fititng ? Is it, for example, least square...

I have to be making a riddiculously silly ommission. when I run the fillowing i get the cloud plot ok. But I cant figure out what I am missing out when I call wireframe. Any help would be appreciated. x...

Hi R Map packages users. I just drew my first few plots using map() and am trying to see if I can configure it to my needs. Are there any known archives out there from where I can get additional...

Hi I'd like to draw some level plots but I just cant for the live of me figure out how to control the axis here. The axis for both the contour plots below appear to be the same, although...

Hi I'd like to draw some level plots but I just cant for the live of me figure out how to control the axis here. The axis for both the contour plots below appear to be the same, although...

Hi All, I would like to control the order in which my boxplots are drawn. When i issue the lines below I find that group "a" get plotted lowest, while the highest letter grade is plotted on the top. I...

Hi is there an R equivalent of the Stata collpase command? suppose i have: classes <- 1:5 schools <- letters[1:5] stud <- 1:10 dat <- expand.grid(School = schools, Grade = classes, Student.ID = stud) with(dat, table(Student.ID, School...

Hi. I am having trouble figuring this out. Please help if you know what I am goffing up on. >rm(list=ls(all=TRUE)) >dat<-expand.grid(village.code = c(1,2,3), household.id = 1:99, member.id = >1...

Hi R Users, I have been trying to google (in general and specifically r-project) to see if I can find listing that may point me to understand the state of the art in R for functional approximation. Unfortunately, I...

Hi I have >x<-matrix(c(1,2,3,4), ncol = 2) >x [,1] [,2] [1,] 1 3 [2,] 2 4 I'd like these two be divided by their column totals. so 1/3 and 2/3 and 3...

I dont as yet fully understand how trellis works. Advice would be much appreciated. I have a factor variable (2 levels) and a continuous variable and I am able to plot a histogram of the frequencies of the continuous variable...

Hi all. I have a factor variable distributed over time. I am looking for an elegant way to code duration of a state. Suppose, >rainfall.shocks <- factor(sample(c(1,2,3), size = 15, replace = TRUE, prob >= unit.p), + label...