DYNA25: Spring Edition is taking place on 7 April in New York City. More info

Exploring Key

In ⍺ f⌸ ⍵, major cells of ⍺ specify keys for the corresponding major cells of ⍵, and f applies to each unique major cell of ⍺ and the major cells of ⍵ having that key. The monadic case f⌸⍵ is equivalent to ⍵ f⌸ ⍳≢⍵. Key is similar to the GROUP BY clause in […]

Get Support

Technical advice and assistance on all aspects of Dyalog usage is available by e-mail (support@dyalog.com) and/or telephone (+44 1256 830030 – limited to U.K. office hours). Limited advice on design and coding is available, but is not intended to replace the use of the printed and on-line documentation. Except when reporting an issue with the software, users are encouraged to seek advice from the user community via the Dyalog Forum (reading the content of the forums does not require membership).

Search our website...