On 5 Jan 2007 at 12:25, Michael Berry said: > The quick and helpful answers I get from this list encourage me to ask > more questions. I hope that is OK. > > In my mental model of how things work, I imagine a J array to be stored as > a fixed size header (or a header of size that is a function of the array > rank) followed by the array contents. According to 7!:5, my floating point > array seems to take up more space that that. This in on 32-bit Windows. > > > $rater_sig02 > 480189 19 > 8**/$rater_sig02 > 72988728 > 7!:5 <'rater_sig02' > 134217728 > (7!:5 <'rater_sig02')%*/$rater_sig02 > 14.7111 > > > In addition to just intellectual curiosity, my practical question is > whether I need to think about anything beyond the number of elements and > the type of my array when creating a mapped file to contain it.
Rounded-up space allocation 2^. 8**/$rater_sig02 26.12117034 2^. 7!:5 <'rater_sig02' 27 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
