2009/2/21 Phil <pbeadl...@mail2web.com>: > InverseNormal.hs:28:38: > No instance for (IArray a1 Double) > arising from a use of `!' at InverseNormal.hs:28:38-40 > Possible fix: add an instance declaration for (IArray a1 Double) > In the first argument of `(*)', namely `c ! 1' > In the first argument of `(+)', namely `c ! 1 * q' > In the first argument of `(*)', namely `(c ! 1 * q + c ! 2)'
'a1' here is the type of the key. Try something like > a = listArray (1 :: Int,6) [-3.969683028665376e+01, 2.209460984245205e+02, > -2.759285104469687e+02, 1.383577518672690e+02, > -3.066479806614716e+01, 2.506628277459239e+00] or maybe > b :: UArray (Int, Int) Double > b = listArray (1,5) [-5.447609879822406e+01, 1.615858368580409e+02, > -1.556989798598866e+02, 6.680131188771972e+01, > -1.328068155288572e+01] I think this is the problem. HTH, -- Felipe. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
