r - Caret Error Using Train: "Something is wrong; all the RMSE metric values are missing" -
i'm trying train neural network model using caret package in r , encountered error message regarding missing rmse metric values. has come across error before? below sample of code , error message received: install.packages("caret") library(caret) ctrl <- traincontrol(method = "timeslice", initialwindow = 8000, horizon = 2000, fixedwindow = true) install.packages("nnet") library(nnet) system.time({lmfiltered4 <- train(fgddatatavg2trainxd, fgddatatavg2trainy, method = "avnnet", size = 10, decay = 0.1, trcontrol = ctrl, preproc = c("center", "scale"), linout = true, trace = false, maxnwts = 10 * (ncol(fgddatatavg2trainxd) +1) + 10 + 1, maxit = 500)}) wrong; rmse metric values missing: rmse ...