> On Jun 21, 2019, at 10:58 AM, Tom Woolman <twool...@ontargettek.com> wrote: > > I am using R with the nnet package to perform a multinomial logistic > regression on a training dataset with ~5800 training dataset records and 45 > predictor variables in that training data. Predictor variables were chosen as > a subset of all ~120 available variables based on PCA analysis. My target > variable is a factor with 10 items. > All predictor variable are numeric (type "dbl"). > > My command in R is as follows: > > model <- nnet:multinom(frmla, data = training_set, maxit = 1000, na.action = > na.omit) > > #note that the frmla string is a value of "Target_Variable ~ v1 + v2 + v3, > etc."
Surely that is not its value. You should show the code that created the frmla object. -- David. > Output of this command is as follows (I will truncate to save a little space > after the first few rows): > > # weights: 360 (308 variable) > initial value 10912.909211 > > iter 10 value 9194.608309 > > iter 20 value 9142.608309 > > iter 30 value 9128.737991 > > iter 40 value 9093.899887 > . > . > . > iter 420 value 8077.803755 > > final value 8077.800112 > converged > Error in nnet:multinom(frmla, data = training_set, maxit = 1000, : > NA/NaN argument > > In addition: Warning message: > > In nnet:multinom(frmla, data= training_set, maxit = 1000, : > numerical expression has 26 elements: only the first used > > So that's my issue. I can't figure out the meaning behind both the error > message and the warning message above. There are no NA values in my data set. > I've also tried reducing the number of predictor variables, but I get the > same issue (just a different number of iterations). > > Thanks in advance. > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. David Winsemius Alameda, CA, USA 'Any technology distinguishable from magic is insufficiently advanced.' -Gehm's Corollary to Clarke's Third Law ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
