*** THIS IS JUST AN EXAMPLE OF STRATEGY TIME LIMITING CODE IMPLEMENTATION ***
This is a follow up to my example for risk management implementation here:
Code remains mostly unchanged, but now includes a time limiting implementation.
Relevant code blocks for the time factor are preceded with a comment stating:
Cheers!
This is a follow up to my example for risk management implementation here:
Code remains mostly unchanged, but now includes a time limiting implementation.
Relevant code blocks for the time factor are preceded with a comment stating:
- *** FOCUS OF EXAMPLE ***
Cheers!
//@version=2 strategy(title = "Strategy Code Example", shorttitle = "Strategy Code Example", overlay = true, pyramiding = 0, default_qty_type = strategy.percent_of_equity, default_qty_value = 10, currency = currency.GBP) // Revision: 1 // Author: @JayRogers // // *** THIS IS JUST AN EXAMPLE OF STRATEGY TIME LIMITING *** // // This is a follow up to my previous strategy example for risk management, extended to include a time limiting factor. // === GENERAL INPUTS === // short ma maFastSource = input(defval = open, title = "Fast MA Source") maFastLength = input(defval = 14, title = "Fast MA Period", minval = 1) // long ma maSlowSource = input(defval = open, title = "Slow MA Source") maSlowLength = input(defval = 21, title = "Slow MA Period", minval = 1) // === STRATEGY RELATED INPUTS === tradeInvert = input(defval = false, title = "Invert Trade Direction?") // Risk management inpTakeProfit = input(defval = 1000, title = "Take Profit", minval = 0) inpStopLoss = input(defval = 200, title = "Stop Loss", minval = 0) inpTrailStop = input(defval = 200, title = "Trailing Stop Loss", minval = 0) inpTrailOffset = input(defval = 0, title = "Trailing Stop Loss Offset", minval = 0) // *** FOCUS OF EXAMPLE *** // Time limiting // a toggle for enabling/disabling useTimeLimit = input(defval = true, title = "Use Start Time Limiter?") // set up where we want to run from startYear = input(defval = 2016, title = "Start From Year", type = integer, minval = 0, step = 1) startMonth = input(defval = 05, title = "Start From Month", type = integer, minval = 0,step = 1) startDay = input(defval = 01, title = "Start From Day", type = integer, minval = 0,step = 1) startHour = input(defval = 00, title = "Start From Hour", type = integer, minval = 0,step = 1) startMinute = input(defval = 00, title = "Start From Minute", type = integer, minval = 0,step = 1) // === RISK MANAGEMENT VALUE PREP === // if an input is less than 1, assuming not wanted so we assign 'na' value to disable it. useTakeProfit = inpTakeProfit >= 1 ? inpTakeProfit : na useStopLoss = inpStopLoss >= 1 ? inpStopLoss : na useTrailStop = inpTrailStop >= 1 ? inpTrailStop : na useTrailOffset = inpTrailOffset >= 1 ? inpTrailOffset : na // *** FOCUS OF EXAMPLE *** // === TIME LIMITER CHECKING FUNCTION === // using a multi line function to return true or false depending on our input selection // multi line function logic must be indented. startTimeOk() => // get our input time together inputTime = timestamp(syminfo.timezone, startYear, startMonth, startDay, startHour, startMinute) // check the current time is greater than the input time and assign true or false timeOk = time > inputTime ? true : false // last line is the return value, we want the strategy to execute if.. // ..we are using the limiter, and the time is ok -OR- we are not using the limiter r = (useTimeLimit and timeOk) or not useTimeLimit // === SERIES SETUP === /// a couple of ma's.. maFast = ema(maFastSource, maFastLength) maSlow = ema(maSlowSource, maSlowLength) // === PLOTTING === fast = plot(maFast, title = "Fast MA", color = green, linewidth = 2, style = line, transp = 50) slow = plot(maSlow, title = "Slow MA", color = red, linewidth = 2, style = line, transp = 50) // === LOGIC === // is fast ma above slow ma? aboveBelow = maFast >= maSlow ? true : false // are we inverting our trade direction? tradeDirection = tradeInvert ? aboveBelow ? false : true : aboveBelow ? true : false // *** FOCUS OF EXAMPLE *** // wrap our strategy execution in an if statement which calls the time checking function to validate entry // like the function logic, content to be included in the if statement must be indented. if( startTimeOk() ) // === STRATEGY - LONG POSITION EXECUTION === enterLong = not tradeDirection[1] and tradeDirection exitLong = tradeDirection[1] and not tradeDirection strategy.entry( id = "Long", long = true, when = enterLong ) strategy.close( id = "Long", when = exitLong ) // === STRATEGY - SHORT POSITION EXECUTION === enterShort = tradeDirection[1] and not tradeDirection exitShort = not tradeDirection[1] and tradeDirection strategy.entry( id = "Short", long = false, when = enterShort ) strategy.close( id = "Short", when = exitShort ) // === STRATEGY RISK MANAGEMENT EXECUTION === strategy.exit("Exit Long", from_entry = "Long", profit = useTakeProfit, loss = useStopLoss, trail_points = useTrailStop, trail_offset = useTrailOffset) strategy.exit("Exit Short", from_entry = "Short", profit = useTakeProfit, loss = useStopLoss, trail_points = useTrailStop, trail_offset = useTrailOffset)