This may not solve exactly your problem, you can try the dyad I.
eg
a=. 133 139 153 159 165
a I. 152
2
2{a
153
Вск, 26 Дек 2010, PackRat писал(а):
> 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
>
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