I'm just learning about the .e primitive, and I was wondering how I do a match when a close (but not exact) match is involved. In other words, how do I do the equivalent of this:
( a +/- b ) .e y where the value of b might be, say, 5 or 8 or 12 or whatever (not some near-zero tolerance factor). For example, when matching an element of array a having a value of 152 with a match range of +/- 7 and the values of y close to that might be ... 133 139 153 159 165 ..., how do I obtain the value 153 from y as a "match" (that is, a boolean true)? Thanks in advance for your help! Harvey ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
