Thanks to all for the helpful replies to my question about finding integers in a string of floating point numbers. I find that finding the boolean mark array (derived tolerantly) indicating the location of the integers in an array of floating point numbers is most useful for the majority of my applications. So the fi (find integers) verb I can use is simply: fi =: =<.
I am continually amazed at how concisely complex functions can be expressed in J. Skip ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
