, CommonExprSet
, Constant(..)
+ , Variable(..)
, CommonUnaryOp(..)
, CommonBinaryOp(..)
, CommonTrinaryOp(..)
, CommonSetOp(..)
+ , VariableShiftPredictOp(..)
+ , FixedShiftPredictOp(..)
, IterativeValue(..)
, AggregativeUnaryOp(..)
, dsExpr = Average (Const 100 .*. Const 200 .*. HNil)
}
-class Show e => Expr e
+class (Show e, Eq e) => Expr e
class Expr e => CommonExpr e
class Expr e => IterativeExpr e
class Expr e => AggregativeExpr e
instance CommonExpr e => IterativeExpr e
instance CommonExpr e => AggregativeExpr e
-class (Show es, HList es) => ExprSet es
+class (Show es, Eq es, HList es) => ExprSet es
instance ExprSet HNil
instance (Expr e, ExprSet es) => ExprSet (HCons e es)
-class (Show es, HList es) => CommonExprSet es
+class (Show es, Eq es, HList es) => CommonExprSet es
instance CommonExprSet es => ExprSet es
instance CommonExprSet HNil
instance (CommonExpr e, CommonExprSet es) => CommonExprSet (HCons e es)
-- Constants and variable names
data Constant
= Const !Double
- | Var !String
deriving (Show, Eq, Ord)
instance Expr Constant
instance CommonExpr Constant
+data Variable
+ = Var !String
+ deriving (Show, Eq, Ord)
+instance Expr Variable
+instance CommonExpr Variable
+
-- Common operators
data CommonUnaryOp a
= IsUnknown !a
| Deg2Rad !a
| Rad2Deg !a
| Abs !a
+ | Trend !Variable !a
+ | TrendNan !Variable !a
deriving (Show, Eq, Ord)
instance Expr a => Expr (CommonUnaryOp a)
instance CommonExpr a => CommonExpr (CommonUnaryOp a)
instance ExprSet es => Expr (CommonSetOp es)
instance CommonExprSet es => CommonExpr (CommonSetOp es)
+data VariableShiftPredictOp ss w
+ = VariableShiftPredictAverage !ss !w !Variable
+ | VariableShiftPredictSigma !ss !w !Variable
+ deriving (Show, Eq, Ord)
+instance (ExprSet ss, Expr w)
+ => Expr (VariableShiftPredictOp ss w)
+instance (CommonExprSet ss, CommonExpr w)
+ => CommonExpr (VariableShiftPredictOp ss w)
+
+data FixedShiftPredictOp sm w
+ = FixedShiftPredictAverage !sm !w !Variable
+ | FixedShiftPredictSigma !sm !w !Variable
+ deriving (Show, Eq, Ord)
+instance (Expr sm, Expr w)
+ => Expr (FixedShiftPredictOp sm w)
+instance (CommonExpr sm, CommonExpr w)
+ => CommonExpr (FixedShiftPredictOp sm w)
+
-- Iterative special values
data IterativeValue
= Previous