---List wrote: > In an effort to get some level of familiarity with J I am working > through a number of the excellent examples and essays. > > I notice that a number of them have some relatively minor > problems, some > of which seem to be platform dependent, some are potentially minor > syntax problems (which are not always so minor if you are not yet good > with the language). > > An example of the latter is in the "Building Applications" > lab example. > The line > > DAT=: 'm' fread jpath '~system\examples\data\sales.dat'` > I suspect this is an error that appeared during the wikification of the lab. It doesn't appear in the interactive version of the lab that ships with J. I have fixed the page.
> So, two questions: First, is this the right forum to report such minor > errors? For questions about J primitives, syntax and grammar this forum is fine. If you are reporting a suspected error in a Lab or a wiki page, then the General forum is probably more appropriate. Your post seemed to be a little of both so no problems. If you do wish to report an error it helps to be specific about its location. If it is on a wiki page then give the link to the page. If it is in an interactive Lab then give the Chapter/page title or similar (In this case: ((1) 7 of 17) Reading the data (ctd) ). If you ask for Wiki editing permission (http://www.jsoftware.com/jwiki/EditingGuidelines#permission) you will be able to correct errors you find on the wiki yourself. > Second, can anybody explain why that trailing tie character > puts DAT in some odd state? I think you have created an adverb: 4!:0 <'DAT' 1 '' DAT SYMONS 2,469 1,207 181 3,688 7,197 2,250 10,750 2,330 1,351 7,613 17,444 12,654 DONOHOE 43,343 7,723 25,798 33,529 10,542 24,913 21,716 17,832 17,914 10,026 27,580 46,260 ... ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
