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Dear R-users; I am interested in getting the number of objects in a list, and have thus far been unsuccessful. Can you please help. Thank you. Vumani

Dear R-users: Is it possible to fit linear mixed models using LME when the random error is correlated with one of the covariates in the model? Thanks. Vumani Dlamini

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Dear R users: Is there a way to create negatively correlated binary data in R. I have looked at bindata, but it seems it only works with positively correlated data. Thanks. Vumani Dlamini Swaziland

Dear R users: Is there any R analogue for the S+ function "na.gam.replace". I would like to make an interaction of a categorical and smooth continuous covariate. Thanks. Vumani Dlamini Central Statistical Office Swaziland

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Dear listers, I am trying to find the root of a polynomial of the form, a+bx+cx^2+dx^3+ex^5+...=0 where a,b,c,d,e are known. I have looked at "quadprog" without any success...

Is it possoble to include an R function in a C program? I would like to use "rmultz" from the "combinat" library to sample a multinomial vector within my C program, and have no clue how this can be done...

Dear R users, I would like to sample from a mixture distribution p1*f(x1)+p2*f(x2). I usually sample variates from both distributions and weight them with their respective probabilities, but someone told me that was wrong. What...

Dear R users; I would like to convert a series of vectors to matrices in the following way; (2,1,1) to a matrix 1 0 0 1 0 0 0 1 0 0 0 1 The idea is that...

Has anyone implemented the conditional logit and/or the nested logit model in R? My interests would be to fit a a GAM like conditional logit. Thanks. Vumani Dlamini Swaziland _________________________________________________________________ -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac...

Dear R-Users: I am trying to create a graph with 6 panels, but would like to have a universal legend as each panel merely denotes a separate stratum. The legend has to be at the bottom. I use "par...

it is easy to fit a distribution using fitdistr poisdata <- rpois(n = 100, lambda = 2) poismle <- fitdistr(poisdata, "Poisson") poismle but i would like to know whether its possible to get an identical result using glm. I use poistab <- data...

Dear R-Users I am trying to fit a random coeficient model with about 30 covariates with a random intercept and one random slope. The data set has 65000 observations, and whenever I use LME I get the message that...

Dear R users, I know this is the wrong forum for such a question but I need help. I would like to write down the likelihood expression for a simple EM problem. I have one categorical covariate with 5 levels...

Is there any library for fitting multinomial probit using either likelihood or the "method of simulated moments" or both. I presume it would be possible to write a family function in VGAM for the multinomial probit, but was hoping that...

Dear R users, I have a matrix with 2 columns with the variables: "daughter index", "mother index". I would like to draw a network digraph using this data, where each daughter is connected to a mother and between the connections...

Dear R users, Is it possible to force a hard return in an expression. I tried including one for a legend using an expression and it didn't work. Here is my code, legend(12, 0.10, c("Fitted density...