building my first strategy

[lightfoot500]

hello,
getting to know the strategy wizard on ninja and trying to put together a simple buy/sell strategy to get a handle on building strategys..

what i want is...is to enter a trade when price closes outside the bollinger band AND stochastics is oversold/overbot. so if price is outside the upper bb AND stochastics is >75 then i would enter a short(SET 1).... and if price is below the lower bb AND stoch is <25 then enter long.. (SET 2)
and i would exit using a trailing stop of one point which i believe is 4 ticks.
I want only one trade per overbot/oversold event because often such overbot/oversold conditions occur for more than one bar in a row.
and a one point stop loss.
i would also like to put arrow markers on the chart when the overbot/oversold event occurs for n bars.

what i got is.... something close, but i am not sure it is quite what i want.
first off, i dont get the arrow heads over the overbot/oversold event..?
is it placing two trades when it says for example, "close position [email protected] sell short [email protected]".?
third, i am not sure the entry is occurring at the first event of the overbot/oversold ?
and my autotrail stop doesnt seem to stopping me out after 4 ticks.. assuming a tick is a quarter point?
this attached screen shot shows an example.

[lightfoot500]

and here is the code from the strategy builder

here is the code from the strategy..hope this is enough info..
// This namespace holds all strategies and is required. Do not change it.
namespace NinjaTrader.Strategy
{
///<summary>
/// entry on over extension of price...
///</summary>
[Description("entry on over extension of price... ")]
publicclass overbotsold : Strategy
{
#region Variables
// Wizard generated variables
// User defined variables (add any user defined variables below)
#endregion
///<summary>
/// This method is used to configure the strategy and is called once before any strategy method is called.
///</summary>
protectedoverridevoid Initialize()
{
SetStopLoss("", CalculationMode.Ticks, 4, false);
CalculateOnBarClose = true;
}

[lightfoot500]

and here is the second half of the code

///<summary>
/// Called on each bar update event (incoming tick)
///</summary>
protectedoverridevoid OnBarUpdate()
{
// Condition set 1
if (High[0] >= Bollinger(2, 20).Upper[0]
&& StochasticsFilled(3, 9, 3).K[0] >= 75)
{
DrawArrowDown("My down arrow" + CurrentBar, false, 0, 0, Color.Red);
EnterShort(DefaultQuantity, "");
}

[lightfoot500]

and the third and final bit of code.

sorry for having to do it this way, i dont know of a way to shorten it up..
// Condition set 2
if (Low[0] >= Bollinger(2, 20).Lower[0]
&& StochasticsFilled(3, 9, 3).K[0] <= 25)
{
DrawArrowUp("My up arrow" + CurrentBar, false, 0, 0, Color.Lime);
EnterLong(DefaultQuantit

[NinjaTrader_Bertrand]

lightfoot500, welcome to the forums!

So first step is to get the arrows drawn to verify your trading conditions, this can fixed with assigned a correct Y axis value to the DrawArrow call you use (you use 0 now, so that's why they do not show up at all) -

http://www.ninjatrader-support.com/HelpGuideV6/StrategyAction-DrawingOnAChart.html

[lightfoot500]

thanks bertrand, drawing arrows is working now.
i would like to work with the slope of one of the indicators. lets say the lower bb. i got it to print an "arrow" for a slope <= n .
how can i specify the absolute value of n, or do i need two statements in there to work with the absolute value.
second, is there a way to just print the slope value on the chart in place of the arrow so i can see what the slope value should be?
my objective is to place markers where the slope of my indicator is flat or near flat. what i have now are markers at near flat or falling because i am using a statement saying mark where the slope is <= n ... hope this clarifys why i want to use the absolute value,.
thanks

[NinjaTrader_Bertrand]

For getting the absolute value, you can use Math.Abs().

For plotting the slope you could use this inside an indicator or in realtime for the strategy, please try this -

http://www.ninjatrader-support2.com/vb/showthread.php?t=6651

[lightfoot500]

ok, using the strategy wizard, i put the slope value of .05 inside the math.abs (.5) like this and it gave error message.
what is the proper way to use that function?

[NinjaTrader_JoshP]

Please provide the error message.

[lightfoot500]

well, the error message is property value is not valid.
but i realize now that using the absolute value will not work for what i want to do anyways.
what i want is to "put an arrow" at each bar for which the upper bollinger band, for example, is between -.5 and .5 ..

right now, i have an arrow for slope <= .5....

[NinjaTrader_JoshP]

Please provide the complete and exact text of the error along with the complete and exact line causing the error.

[lightfoot500]

thanks,
but i realize now that using the absolute value will not work for what i want to do anyways.
what i want is to "put an arrow" at each bar for which the upper bollinger band, for example, is between -.5 and .5 ..

[NinjaTrader_Bertrand]

lightfoot500, ok the Bollinger Band value compared to what? You could use for example the Close price and calculate the difference between it and the Bollinger Band and then DrawArrowUp / Dn if it's within your set limits as mentioned.

[lightfoot500]

thanks, bertrand, i would be comparing the bb value to bb band value n periods before and looking at the slope.

[NinjaTrader_Ben]

Hello,

Give it a try using index values in []'s. Here is an example of getting the value of the upper band 3 bars ago:
upperValue = Bollinger(2, 20).Upper[3];
This link will help:

http://www.ninjatrader-support.com/HelpGuideV6/Bollinger.html

Also, this link may help:

http://www.ninjatrader-support2.com/vb/showthread.php?t=19176