search for: startingvalue

...don't know if this is relevant a package GA - genetic algorithms - gets solutions above the starting value. Fn <- function(Wts) return( -Kendall::Kendall( 1:Nobs, rank(-as.vector(as.matrix(MyDat) %*% matrix(Wts, nc = 1)[, 1, drop = T])) )$tau[1] ) Nobs <- nrow(MyDat) StartingValue <- c(0.12, 0.04, 0.07, 0.03, 0.06, 0.07, 0.07, 0.04, 0.09, 0.08, 0.02, 0.02, 0.03, 0.06, 0.02, 0, 0.07, 0.05, 0.02, 0.02, 0.02) library(GA) #> Loading required package: foreach #> Loading required package: iterators #> Package 'GA' versio...

...MR') library(spdep) popDataAdjMat = poly2nb(ontario, ontario[["CSDUID"]]) library(glmmBUGS) forBugs = glmmBUGS(formula=observed + logExpected ~ 1, effects="CSDUID", family="poisson", spatial=popDataAdjMat, data=ontario at data, modelFile="model.txt") startingValues = forBugs$startingValues source("getInits.R") library(R2OpenBUGS) ontarioResult = bugs(forBugs$ragged, getInits, parameters.to.save = names(getInits()), model.file="model.txt", n.chain=3, n.iter=100, n.burnin=10, n.thin=2) ------------------------------------------- I got e...

?s 19:36 de 27/03/2025, Daniel Lobo escreveu: > My code is to minimize the objective function > > therefore, shouldnt I expect that > > StartingValue = c(0.12, 0.04, 0.07, 0.03, 0.06, 0.07, 0.07, 0.04, 0.09, > 0.08, 0.02, 0.02, 0.03, 0.06, 0.02, 0, 0.07, 0.05, 0.02, 0.02, 0.02) > Fn(q1$par) < Fn(StartingValue) > ## FALSE > > Below is the corrected code that can be reproduced: > > MyDat = structure(list(c(50L, 0L, 0L, 50...

My code is to minimize the objective function therefore, shouldnt I expect that StartingValue = c(0.12, 0.04, 0.07, 0.03, 0.06, 0.07, 0.07, 0.04, 0.09, 0.08, 0.02, 0.02, 0.03, 0.06, 0.02, 0, 0.07, 0.05, 0.02, 0.02, 0.02) Fn(q1$par) < Fn(StartingValue) ## FALSE Below is the corrected code that can be reproduced: MyDat = structure(list(c(50L, 0L, 0L, 50L, 75L, 100L, 50L, 0L, 50L, 0L, 25L...

Dear all, I have a problem with the value of the function optim optim(startingvalues,fct,NULL,method="BFGS", control=list(maxit=300,trace=TRUE,REPORT=1)) In the helpfile for it is said that $convergence is an integer code and 0 indicates successful convergence 1 indicates that the iteration limit maxit had been reached So while using it, I played with different va...

Hi, I am trying to make an automatic kriging interpolation algorithm.When I use the fit.variogram function what would it be a good startingvalue for the range? ThanksDimitris [[alternative HTML version deleted]]

Hi Duncan, Thanks for your comment, I agree with that. But, how it can be justified that an Optimizer gives a result which is inferior to the starting value? At most, resulting value can remain at the same level, isnt it? On Fri, 28 Mar 2025 at 14:34, Duncan Murdoch <murdoch.duncan at gmail.com> wrote: > I haven't run your code, but since Kendall correlation is based on >

?s 18:35 de 27/03/2025, Daniel Lobo escreveu: > Hi, > > I have below minimization problem > > > MyDat = structure(list(c(50L, 0L, 0L, 50L, 75L, 100L, 50L, 0L, 50L, 0L, > 25L, 50L, 50L, 75L, 75L, 75L, 0L, 75L, 75L, 75L, 0L, 25L, 75L, > 75L, 0L, 75L, 100L, 0L, 25L, 100L), c(75L, 0L, 0L, 50L, 100L, > 50L, 75L, 75L, 100L, 25L, 0L, 25L, 100L, 0L, 50L, 0L, 25L, 25L, >