Hello,
I have encountered a strange problem. I am working through a case study and I have to enter the command for ABLINE. Whenever I write the code command in the R counsel I receive an error message. On the other hand, if I go to the author's web page of the book that I am studying, and copy & paste his ABLINE command code into my R counsel. it works!

I have compared the spelling and the characters of my command next to his, and they are identical?

Has anybody ever seen this type of issue before?

Thank you