Oh! I somehow thought that they only worked for numbers. I will be using these from now on, then.
Marshall On Wed, Nov 9, 2011 at 10:18 PM, Roger Hui <[email protected]>wrote: > Please give a few examples of general arguments for which 3!:1 and > 3!:2 do not work. I believe in this thread we are talking about > nouns, so that would be a few examples of general noun arguments. > > > > On Wed, Nov 9, 2011 at 7:06 PM, Marshall Lochbaum <[email protected]> > wrote: > > That's what 1!:1 and 1!:2 are for. You should learn the first few of J's > > file foreigns; they are listed here: > > http://www.jsoftware.com/docs/help701/dictionary/dx001.htm > > > > Roger: yes, the conversions functions are somewhat nicer, but they don't > > work for general arguments. Until I feel like writing a serialization > > function that uses these and is general (or someone else gives me > one--that > > would be awesome), I'll keep using 5!:5 for serialization of small > values. > > > > Marshall > > > > On Wed, Nov 9, 2011 at 9:58 PM, Skip Cave <[email protected]> > wrote: > > > >> Wow! that is great stuff! Thanks so much, Marshall. > >> > >> If I want to take a noun like 'all' which is just a list of text > strings. > >> and save it as a standard text file 'all.txt' in a specific folder on my > >> system, how would you do that? > >> > >> Skip > >> > >> On Wed, Nov 9, 2011 at 8:34 PM, Marshall Lochbaum <[email protected] > >> >wrote: > >> > >> > (nl 0) lists all the nouns in boxed form, and 7!:5 gives the memory > used > >> by > >> > a noun in boxed form, so > >> > 7!:5 nl 0 > >> > gives you a nice list of all the memory being used. > >> > > >> > To save and recover a noun using a file, you can use the inverses > (5!:5) > >> > and ". (". is a strict left inverse of 3 :'5!:5<''y''', at least). > >> > In other words, if your noun is named 'a', you can save it using > >> > (5!:5 <'a') 1!:2 <filename > >> > a =. ". 1!:1 <filename > >> > > >> > Mrshall > >> > > >> > > >> ---------------------------------------------------------------------- > >> For information about J forums see http://www.jsoftware.com/forums.htm > >> > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
