Safe Haskell	None
Language	Haskell2010

DataFrame.Internal.Expression

Documentation

data Expr a where Source #

Constructors

Col :: forall a. Columnable a => Text -> Expr a
Lit :: forall a. Columnable a => a -> Expr a
If :: forall a. Columnable a => Expr Bool -> Expr a -> Expr a -> Expr a
UnaryOp :: forall a b. (Columnable a, Columnable b) => Text -> (b -> a) -> Expr b -> Expr a
BinaryOp :: forall c b a. (Columnable c, Columnable b, Columnable a) => Text -> (c -> b -> a) -> Expr c -> Expr b -> Expr a
AggVector :: forall (v :: Type -> Type) b a. (Vector v b, Typeable v, Columnable a, Columnable b) => Expr b -> Text -> (v b -> a) -> Expr a
AggReduce :: forall a. Columnable a => Expr a -> Text -> (forall a1. Columnable a1 => a1 -> a1 -> a1) -> Expr a
AggNumericVector :: forall a b. (Columnable a, Columnable b, Unbox a, Unbox b, Num a, Num b) => Expr b -> Text -> (Vector b -> a) -> Expr a
AggFold :: forall a b. (Columnable a, Columnable b) => Expr b -> Text -> a -> (a -> b -> a) -> Expr a

Instances

Instances details

(Floating a, Columnable a) => Floating (Expr a) Source #
Instance details Defined in DataFrame.Internal.Expression Methods pi :: Expr a # exp :: Expr a -> Expr a # log :: Expr a -> Expr a # sqrt :: Expr a -> Expr a # (**) :: Expr a -> Expr a -> Expr a # logBase :: Expr a -> Expr a -> Expr a # sin :: Expr a -> Expr a # cos :: Expr a -> Expr a # tan :: Expr a -> Expr a # asin :: Expr a -> Expr a # acos :: Expr a -> Expr a # atan :: Expr a -> Expr a # sinh :: Expr a -> Expr a # cosh :: Expr a -> Expr a # tanh :: Expr a -> Expr a # asinh :: Expr a -> Expr a # acosh :: Expr a -> Expr a # atanh :: Expr a -> Expr a # log1p :: Expr a -> Expr a # expm1 :: Expr a -> Expr a # log1pexp :: Expr a -> Expr a # log1mexp :: Expr a -> Expr a #
(Num a, Columnable a) => Num (Expr a) Source #
Instance details Defined in DataFrame.Internal.Expression Methods (+) :: Expr a -> Expr a -> Expr a # (-) :: Expr a -> Expr a -> Expr a # (*) :: Expr a -> Expr a -> Expr a # negate :: Expr a -> Expr a # abs :: Expr a -> Expr a # signum :: Expr a -> Expr a # fromInteger :: Integer -> Expr a #
(Fractional a, Columnable a) => Fractional (Expr a) Source #
Instance details Defined in DataFrame.Internal.Expression Methods (/) :: Expr a -> Expr a -> Expr a # recip :: Expr a -> Expr a # fromRational :: Rational -> Expr a #
Show a => Show (Expr a) Source #
Instance details Defined in DataFrame.Internal.Expression Methods showsPrec :: Int -> Expr a -> ShowS # show :: Expr a -> String # showList :: [Expr a] -> ShowS #
(Eq a, Show a) => Eq (Expr a) Source #
Instance details Defined in DataFrame.Internal.Expression Methods (==) :: Expr a -> Expr a -> Bool # (/=) :: Expr a -> Expr a -> Bool #

data UExpr where Source #

Constructors

Wrap :: forall a. Columnable a => Expr a -> UExpr

interpret :: Columnable a => DataFrame -> Expr a -> Either DataFrameException (TypedColumn a) Source #

data AggregationResult a Source #

Constructors

UnAggregated Column
Aggregated (TypedColumn a)

mkUnaggregatedColumn :: (Vector v a, Columnable a) => v a -> Vector Int -> Vector Int -> Vector (v a) Source #

nestedTypeException :: (Typeable a, Typeable b) => String -> DataFrameException Source #

interpretAggregation :: Columnable a => GroupedDataFrame -> Expr a -> Either DataFrameException (AggregationResult a) Source #

add :: (Num a, Columnable a) => Expr a -> Expr a -> Expr a Source #

sub :: (Num a, Columnable a) => Expr a -> Expr a -> Expr a Source #

mult :: (Num a, Columnable a) => Expr a -> Expr a -> Expr a Source #

divide :: (Fractional a, Columnable a) => Expr a -> Expr a -> Expr a Source #

replaceExpr :: (Columnable a, Columnable b, Columnable c) => Expr a -> Expr b -> Expr c -> Expr c Source #

eSize :: Expr a -> Int Source #