Use R markdown to knit R codes and output into a words/html/pdf file

[@111-v7f]

Hi, i want to knit my codes but i always get the error "error in eval (expr, envir, enclos): object 'economic_data' not found ...." and i dont know why. When i plot in a normal file the codes function perfectly.

[@kunwarish]

pdf file making wasn't shared. I wasted my time. This is what i was looking for and i'm facing issues