.LoadTickDataHK         Load Tick Data for Hong Kong Stock Market
.LoadTickDataSHSZ       Load Tick Data for SHSZ Stock Market
DataSlice               Truncate Given Dataframe According to Given
                        Time Window
DrawDown                Calculate Maximum Draw Down of Series
GetLastPrice            Retrieve Last Trade Price of Given Instrument
GetQueueLength          Retrieve Length of Quening Orders at Given
                        Price
InitLogEntry            Initialize Log for Each Trade
LimitBuy                Execute Limit Buy Order
LimitSell               Execute Limit Sell Order
LoadTickData            Locate and Load Tick Data of Given Instrument
                        at Given Date
MarketBuy               Execute Market Buy Order
MarketSell              Execute Market Sell Order
PerformanceReport       Summarize Back Test Performance
PortfolioWorth          Evaluate Market Worth of Given Protfolio
PriceToNA               Set 0 In Price To NA
SecondsToTime           Calculate Timestamp
SimpleReturn            Calculate Simple Price to Price Return
TickExec-package        Execution Functions for Tick Data Back Test
TimeAdd                 Calculate Endpoint Timestamp
TimeDiff                Find Difference Between Timestamps
TotalPnL                Calculate Total PnL for Given Protfolio
VolumeToZero            Set NA in Volume to 0
