search for: genalg

Would someone be so kind as to provide example code where they use the suggestions argument in the rgba function In genalg? I can't get it to work. The following code works just fine: GenFit <-rbga(Lower, Upper, evalFunc = evaluate) Lower and Upper are each numeric vectors with 7 elements. Evaluate is an objective function. However, when I want to use a suggested chromosome, I get an error message. My code is...

Hi I am first looking at genalg as a starting point for GA implementation in R. I have a couple of questions regarding this package and GA implementation in general. If you could provide some hints on these questions, I would really appreciate. Thank you in advance. 1. I found two methods for performing optimization based on the...

Hi all. I would like to use the rbga.bin function (from the "genalg" package) as part of a model selection process to whittle down a list of ~40 potential explanatory variables to only the most important ones. Unfortunately, despite my working knowledge of R for linear modeling and basic statistics, I cannot understand the two examples provided with the d...

...o variable selection when building the model. In R, there are not GA package like in matlab GA-toolbox(http://www.sheffield.ac.uk/acse/research/ecrg/gat.html) . now, I just can use the matlab GA-tool box, however, I can not use GP-toolbox in matlab. so I search the internet, find R package "genalg" can do GA. and an example given is to do wavelength selection by GA+PLS, so I think i certainly do the GA+GP. unfortunately, in this genalg package, i do not know how to extract the selected variables, it seems likes there is not such function. So I want to all friends help me to solve the re...

Hello list, I am dealing with a noisy function (gradient,hessian not available) with simple boundary constraints (x_i>0). I've tried constrOptim() using nelder mead to minimize it but it is way too slow and the returned results are not satisfying. simulated annealing is so hard to tune and it always crashes R program in my case. I wonder if there are any packages or functions can do

...er","fuzzyRankTests","g.data","gafit","gam","gamair","gamlss","gamlss.tr","GammaTest","gap","gbm","gclus","gcmrec","gdata","gee","geepack","genalg","Geneland","GeneNT","genetics","GeneTS","GenKern","geometry","geoR","geoRglm","ggm","ggplot","giRaph","gld","gllm","glmmML","glmpath","glp...

...do variable selection when building the model. In R, there are not GA package like in matlab GA-toolbox(http://www.sheffield.ac.uk/acse/research/ecrg/gat.html) . now, I just can use the matlab GA-tool box, however, I can not use GP-toolbox in matlab. so I search the internet, find R package "genalg" can do GA. and an example given is to do wavelength selection by GA+PLS, so I think i certainly do the GA+GP. unfortunately, in this genalg package, i do not know how to extract the selected variables, it seems likes there is not such function. So I want to all friends help me to solve the re...