Custom Query (35 matches)

​http://stackoverflow.com/questions/8624760/repa-how-to-make-a-read-instance

Can we build a Par-like monad that automatically inserts deepSeqArray and prevents nested parallelism?

A few people have asked how to take sub-matrices. This is an index transformation that's easy to specify, but there should be a nice wrapper for it. We could make a shape polymorphic version using addIndex to add the starting offset.

let arr = fromList (Z :. (5 :: Int)) [1, 2, 3, 4, 5 :: Int] 
in  fromFunction (Z :. 3) (\(Z :. ix) -> arr ! (Z :. ix + 1))