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See:
Description
Interface Summary  
QuoteSymbol 
Class Summary  
AbsExpression  An expression which calculates the absolute value of a number. 
AbstractExpression  The abstract base class for all expressions in the Gondola language. 
AddExpression  An expression which adds two subexpressions. 
AlertExpression  An no op expression which when evaluated displays a message. 
AndExpression  An expression which performs boolean and on two
subexpressions. 
ArithmeticExpression  Abstract base class for the arithmetic expressions:
+, /, *,  
AvgExpression  An expression which finds the average quote over a given trading period. 
BBLExpression  An expression which finds the BBL (Bollinger Band Lower) quote over a given trading period. 
BBUExpression  An expression which finds the BBU (Bollinger Band Upper) quote over a given trading period. 
BinaryExpression  Abstract base class for all expressions requiring two arguments. 
CeilExpression  An expression which returns the ceil value. 
ClauseExpression  A clause is an ordered list of subexpressions. 
ComparisionExpression  Abstract base class for the comparision expressions:
>, <, ==, ! 
CorrExpression  An expression which finds the correleation between two stock quotes. 
CosineExpression  An expression which returns the cosine value. 
DayExpression  A function that returns the current day of month. 
DayOfWeekExpression  A function that returns the current day of week. 
DayOfYearExpression  A function that returns the current day of year. 
DefineParameterExpression  A representation of a function parameter definition. 
DefineVariableExpression  A representation of a variable definition. 
DivideExpression  An expression which divides two subexpressions. 
EMAExpression  An expression which finds the EMA (Exponential Moving Average) quote over a given trading period. 
EqualThanExpression  An expression which compares the two subexpressions for equality. 
EvalFunctionExpression  An expression which defines a user function. 
ExponentialExpression  An expression which returns the exponential value. 
ExpressionFactorySquareWheel  
FloorExpression  An expression which returns the floor value. 
ForExpression  An expression which represents the for command.

FuncTester  
FunctionExpression  An expression which defines a user function. 
GetVariableExpression  A representation of an expression to return the value of a variable. 
GreaterThanEqualExpression  An expression which compares whether the first expression is greater than or equal to the second expression. 
GreaterThanExpression  An expression which compares whether the first expression is greater than the second expression. 
HaltExpression  An no op expression which when evaluated halts the processing of rules. 
IfExpression  An expression which represents the control flow of
if (x) y else z . 
IncludeExpression  A clause is an ordered list of subexpressions. 
LagExpression  An expression which returns a quote. 
LessThanEqualExpression  An expression which compares whether the first expression is less than or equal to the second expression. 
LessThanExpression  An expression which compares whether the first expression is less than the second expression. 
LogarithmExpression  An expression which returns the logarithm value. 
LoggingExpression  An no op expression which when evaluated halts the processing of rules. 
LogicExpression  Abstract base class for the boolean expressions:
and, or 
MACDExpression  An expression which finds the MACD (Moving Average Convergence Divergence) over a default trading period. 
MaxExpression  An expression which finds the maximum quote over a given trading period. 
MinExpression  An expression which finds the minimum quote over a given trading period. 
MomentumExpression  An expression which finds the Momentum over a given trading period. 
MonthExpression  A function that returns the current month. 
MultiplyExpression  An expression which multiplies two subexpressions. 
NotEqualExpression  An expression which compares the two subexpressions for inequality. 
NotExpression  An expression which performs boolean not on the
subexpressions. 
NumberExpression  A representation of a value. 
OBVExpression  An expression which finds the OBV (On Balance Volume) over a given trading period. 
OrExpression  An expression which performs boolean or on two subexpressions. 
PercentExpression  An expression which returns the given percent of a value. 
QuaternaryExpression  Abstract base class for all expressions requiring four arguments. 
QuoteExpression  Class that represents a quote kind, e.g. day open, day close, etc. 
QuoteSymbolExpression  Class that represents a quote kind where the user supplies a symbol different to that of the implicit symbol. 
RandomWithoutSeedExpression  An expression which returns a random number. 
RandomWithSeedExpression  An expression which returns a random number. 
RSIExpression  An expression which finds the RSI over a given trading period. 
SetVariableExpression  A representation of an expression to set and return the value of a variable. 
SineExpression  An expression which returns the sine value. 
SqrtExpression  An expression which calculates the square root of a number. 
StandardDeviationExpression  An expression which finds the standard deviation of a quote over a given trading period. 
StringExpression  A representation of a value. 
SubtractExpression  An expression which subtracts two subexpressions. 
SumExpression  An expression which finds the sum of quotes over a given trading period. 
TerminalExpression  Abstract base class for all expressions requiring no arguments. 
TernaryExpression  Abstract base class for all expressions requiring three arguments. 
TrendExpression  An expression which generates the trend line over the quote and extrapolates the next value. 
UnaryExpression  Abstract base class for all expressions requiring a single argument. 
WhileExpression  An expression which represents the while command.

YearExpression  A function that returns the current year. 
Contains code to execute all the expressions in the Gondola scripting language.

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