Hello Dan;
Thanks for your help. Comments inline:
Dan Bron wrote:
Randy,
Another is to use 8&$. whenever you suspect you've introduced 0s:
8&$. -- Compact Sparse, got it. That appears to be just what I needed.
It almost, but not quite, justifies reading every byte of the help,
something I gave up doing in '95.
Please keep in mind that there is no reason to use sparse arrays if you can
manifest the dense array in memory. Sparse arrays are less used, and therefore
get less attention, and therefore have more bugs in the implementation. If you
use them, keep that usage as simple and obvious as possible. And, of course,
report bugs.
The rationale for sparse arrays I know. Since a 200000 200000 table
blows memory away (maybe not on my next machine....) sparse arrays
seemed to be the way to go. I thought this problem, not bug, was the
same as:
datatype 1.2 - 0.2
float
but I couldn't see how.
--
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