It's great to edit posts, especially to fix typos that make code un-runnable or when data doesn't match output. But when editing your posts, please make sure you do not destroy context (study How do I change/delete my post?, especially the section "It is uncool...") -- make sure you indicate within the edited post that it has been edited, and how you edited it, so that replies don't become meaningless/confusing. You could go back now, and indicate what you changed, to make the thread more understandable to people reading in the future.