As a bit of a response to the whole question of what we see and what we get, I put together some html and css that allows a view of J results on JHS that gives type information implicitly in the display.
I think the blog post and demo video gives the flavour of the journey. http://bobtherriault.wordpress.com/2014/02/02/using-html-and-css-to-view-types-in-the-jhs-platform-of-j/ Cheers, bob On Jan 20, 2014, at 3:01 AM, Joe Bogner <joebog...@gmail.com> wrote: > Makes perfect sense now. The atom vs list distinction wasn't clicking > earlier. I had become so used to working with arrays that everything > became an array and I had completely forgotten about scalars. The > dictionary entry on nouns also covers it well, > http://www.jsoftware.com/help/dictionary/dicta.htm. > > > On Sun, Jan 19, 2014 at 11:18 PM, Henry Rich <henryhr...@nc.rr.com> wrote: >> The primitives, namely ;: u;.n u\ u\. u/. produce lists even when there is >> only one item in the partition. Very regular. > > > I understand better why it would do that now. As it partitions a list, > it is likely simpler and performs better to create a list for each > partition instead of determining whether there's only one item in the > partition. I think of it as a splitting a char[] array into other > char[] arrays instead of char for single and char[] otherwise. > > >> There's just something special about a single character >> or a single number: they are atoms. > > This and the dictionary entry explains why $ 'a' or $ (<'abc') returns > blank - since each are atoms. > > Thanks again > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
