"is" and the story of a typo
On 30-Mar-10 23:23:09, Jim Lemon wrote:
Hi all, The gurus may pour scorn on me for not knowing this, but I happened to mistype "if" as "is" in the heat of debugging a function. As I scanned the debugged function with some satisfaction, I noticed the error. How could this have worked? I assume that "is" is a generic function that calls one of the is.* functions to evaluate whatever is passed. It appears that this particular typo causes "is" to work out and report the contents of its argument. Ho hum. As I did not test the FALSE result, I never would have noticed that it was not the conditional statement I expected until it evaluated something that should have been FALSE. Jim
Hi Jim, is: ?is is(is) is(is(is)) is(is(is(is))) identical(is(is(is)),is(is(is(is)))) Ted. -------------------------------------------------------------------- E-Mail: (Ted Harding) <Ted.Harding at manchester.ac.uk> Fax-to-email: +44 (0)870 094 0861 Date: 31-Mar-10 Time: 09:21:29 ------------------------------ XFMail ------------------------------