Attaching package: ‘dplyr’ The following objects are masked from ‘package:stats’: filter, lag The following objects are masked from ‘package:base’: intersect, setdiff, setequal, union Loading required package: lattice Loading required package: ggplot2 Loading required package: proto Warning message: no DISPLAY variable so Tk is not available ── Attaching packages ─────────────────────────────────────── tidyverse 1.3.0 ── ✔ tibble 3.0.1 ✔ stringr 1.4.0 ✔ tidyr 1.0.0 ✔ forcats 0.5.0 ✔ purrr 0.3.3 ── Conflicts ────────────────────────────────────────── tidyverse_conflicts() ── ✖ dplyr::filter() masks stats::filter() ✖ dplyr::lag() masks stats::lag() ✖ purrr::lift() masks caret::lift() Attaching package: ‘data.table’ The following object is masked from ‘package:purrr’: transpose The following objects are masked from ‘package:dplyr’: between, first, last Warning messages: 1: In rm(Opt_features, SAR_features, SAR_tempStats) : object 'SAR_features' not found 2: In rm(Opt_features, SAR_features, SAR_tempStats) : object 'SAR_tempStats' not found Warning message: NAs introduced by coercion Warning message: NAs introduced by coercion Warning message: NAs introduced by coercion Warning message: NAs introduced by coercion Error in `levels<-`(`*tmp*`, value = as.character(levels)) : factor level [5] is duplicated Calls: factor Execution halted