hello, my question was already answered on this website. however when i try to use the same code, there is an error.........

Error: The tuning parameter grid should have columns C

my question is about wine dataset..

the solution is available here on Chegg:

https://www.chegg.com/homework-help/questions-and-answers/please-would-appreciate-support-exercise-using-r-programming-included-raw-data-exercise-tr-q106676140

please a prompt reply is very much appreciated. many thanks