I have a data frame that was sampled from another data frame. As a result, when I print the output of the data frame, I get a jumble of numbers on the left hand side of the data frame. The original data frame was nicely numbered from 1,2,3,4,5, and so on. But my new data frame is numbered 5,15,3,65, etc on the left hand side. Is there a way I can access the row index information for a data frame in R? thank you!