Re: [Haskell-cafe] Beginners Question: Problem with Data Type Declaration

Hi Johan, actually quite obvious. Code works now, many thanks. :-) import Data.Packed.Vector data PowerSig = PowerSig Int Double (Vector Double) -- signal Index timeStep data instance Show PowerSig where show (PowerSig idx dt vector) = "PowerSignal Nr: " ++ show idx ++ " dt: " ++ show dt ++ " val:" ++ show vector main = do let p = PowerSig 5 0.1 (fromList [0..10::Double]) putStrLn (show p) -- View this message in context: http://haskell.1045720.n5.nabble.com/Beginners-Question-Problem-with-Data-Ty... Sent from the Haskell - Haskell-Cafe mailing list archive at Nabble.com.