add packages

Dockerfile

@@ -13,6 +13,8 @@ RUN install2.r --error \
     dplyr \ 
     tidyr \ 
     parsnip \ 
+    workflows \ 
+    xgboost \ 
     echarts4r \ 
     shiny 
 

app.R

@@ -1,6 +1,8 @@
 # library(readr)
 library(tidyr)
 library(parsnip)
+library(workflows)
+library(xgboost)
 library(shiny)
 library(bslib)
 library(dplyr)