The dyadic form takes a default value to substitute for non-numerics, e.g. _999 ". '1 2.2 3.14 4j5 no good' 1 2.2 3.14 4j5 _999 _999
Infinity is often a good default as it's unlikely to be a valid data value: _ ". 'Friday, December 30, 2011 11:17:20 AM' _ _ _ 2011 _ _ On Fri, Dec 30, 2011 at 8:08 PM, David Vaughan <purpleblue...@googlemail.com > wrote: > ". > should work > > ___________________________ > > David Vaughan > > On 30 Dec 2011, at 20:51, Blake McBride <bl...@mcbride.name> wrote: > > > Greetings, > > > > In APL I used to use the execute function to convert a string (like > > '123.45') into a number 123.45 (after I verified that it was a valid > > number). How can I do this in J? > > > > Thanks. > > > > Blake McBride > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- Devon McCormick, CFA ^me^ at acm. org is my preferred e-mail ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
