Dear all, I've worked with optim before but never encountered this error message:
Nelder-Mead direct search function minimizer 0.23 0Error: subscript out of bounds The error seems to depend on the initial parameter values. However, strangely (I think), I recieve this error message when I have given very good initial values - the values which were returned when I gave worse values. An example: I first give the initial values: a=0.1, g=0 > fit.lognorm$conv [1] 0 > fit.lognorm$par [1] 0.2322998 0.1873682 When plotting the deviance (minimized) against the fixed parameter values, a <- seq(0, 1, l=11) g <- seq(-0.5, 0.5, l=11) grid <- expand.grid(a, g) the found [1] 0.2322998 0.1873682 are very reasonable. I then thus run the funciton again with a=0.23, g=0.18, and recieve the message: Nelder-Mead direct search function minimizer 0.23 0Error: subscript out of bounds I've tried increasing maxit (10000), read previous optim function mails and looked in FAQ, but this problem has not been mentioned. Thanks in advance for help! Sincerely, Tord Nelder-Mead direct search function minimizer 0.23 0Error: subscript out of bounds ----------------------------------------------------------------------- Tord Sn�ll Avd. f v�xtekologi, Evolutionsbiologiskt centrum, Uppsala universitet Dept. of Plant Ecology, Evolutionary Biology Centre, Uppsala University Villav�gen 14 SE-752 36 Uppsala, Sweden Tel: 018-471 28 82 (int +46 18 471 28 82) (work) Tel: 018-25 71 33 (int +46 18 25 71 33) (home) Fax: 018-55 34 19 (int +46 18 55 34 19) (work) E-mail: [EMAIL PROTECTED] Check this: http://www.vaxtbio.uu.se/resfold/snall.htm! ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
