[R] A problem about the package lme4 in R-2.11.1

Dear all R-users, When I install the package lme4 in R-2.11.1, and use it to run the simulation on the Linux system, it appears the following problem. Attaching package: 'lme4' The following object(s) are masked from 'package:stats':     AIC Error in names(argNew)[1] -

[R] About multivariate nonparametric local polynomial

Dear all, Is there any package about multivariate nonparametric local polynomial in R? Thank you so much. Sincerely, Joe [[alternative HTML version deleted]] __ R-help@r-project.org mailing list

[R] an error about return some vectors from some functions within a function

Dear all, When I try to return some vectors from some functions within a function, it indicate an error, Error in rbind(ck1, ck2, ck3) : object 'ck1' not found, in one of the iterations and stop.  Since I am not experienced in programming, can anyone give me a suggestion to inspect this

[R] Retrieve estimates from glmer()

Dear all, I am running glmer() in R. How can I retrieve the estimates of fixed effects and the variance of the random effects from the result? Thank you so much. Joe ___ ±zªº¥Í¬¡§Y®É³q ¡Ð ·¾³q¡b®t¼Ö¡b¥Í¬¡¡b¤...@¤@¦¸·d©w¡I

[R] how to use optim() or nlm() to solve three nonlinear equations

Dear all, I just know how to solve an eaquation by using optim() or nlm(). But, now, I have three nonlinear equations, how could we use optim() or nlm() to solve  a system of nonlinear equations in R?  Thank you so much. Sincerely, Joe ___

[R] About LU decomposition in R

Hi, How can I find and download a function in R to do the LU decompostion for finding the upper and lower triangular matrix.  Thank you so much. Joe ___ 您的生活即時通 － 溝通、娛樂、生活、工作一次搞定！