Displaying 4 results from an estimated 4 matches similar to: "Instrument in rddtools"

2018 Feb 09

0

Covariates in fuzzy RDD with rddtools

Hello!
I am having trouble including covariates in a fuzzy RDD model in R with rddtools. I run the following commands:
library(rddtools)
data.complete2 <- as.data.frame(cbind(GDPpc.rel, GR.rate, fitval.firstStage)) colnames(data.complete2) <- c("GDPpc.rel", "GR.rate", "FitTreat")
data.RDD<-rdd_data(x=data.complete2$GDPpc.rel,

2012 Apr 30

3

R2 in multilevel modelling

Goodmorning everybody,
i''m an italian statistician and i''m using R for research.
Could someone tell me some indices to see the goodness of fit in multilevel
modelling?
I''m using the lmer function, and I want to know if my model fit well my
data.
I actually want to justify the use of multilevel model instead the classical
one.
Hope someone can help me.
Thank you.

2004 Mar 17

3

Persp plotting of kernel density estimate.

Dear All,
I am trying to visualize the surface of a bivariate kernel density
estimate.
I have a vector of bivariate observations(x,y), and a function which
computes the kernel density estimate z corresponding to each
observation.
I cannot generate the (x,y) data in the ascending order needed by
persp(x,y,z).
I was wondering whether there is an R version of the S function interp.
Would anybody

2004 Mar 17

1

(no subject)

Dear All,
I am trying to visualize the surface of a bivariate kernel density
estimate.
I have a vector of bivariate observations(x,y), and a function which
computes the kernel density estimate z corresponding to each
observation. I cannot generate the (x,y) data in the ascending order
needed by persp(x,y,z).
I was wondering whether there is an R version of the S function interp.
Would anybody