Macd Diff Change Direction

[kenb2004]

Can you please tell me how to program a condition to be true when the Macd "diff" has changed direction from up to down or down to up?
Thanks

[NinjaTrader_RyanM1]

Hello Kenb2004,

You can use Rising and Falling conditions if you just want to compare the MACD value to its prior value. The following reference sample can help you set this up in the Strategy wizard condition builder:
Using Rising and Falling conditions in the Strategy Wizard

[kenb2004]

I get
if (Rising(MACD(12, 26, 9).Diff) == true)
but how do I compare it to the "Diff" Falling AbarAgo?
Thanks

[NinjaTrader_RyanM1]

Hello Ken,

These methods only compare the current MACD value to its prior value. If you want to test a longer duration condition, you have to reference specific values to compare.

if (MACD(12, 26, 9).Diff[0] > MACD(12, 26, 9).Diff[1]) //this is all rising method checks for.

You work with the index [] values to specify the condition you're looking for.

[kenb2004]

I tried
if (Rising(MACD(12, 26, 9).Diff) == true
&& Rising(MACD(12, 26, 9).Diff, 1) == false)
but I got an error "No overload for method 'Rising' takes '2' arguments

[kenb2004]

What you showed only creates a condition that shows Rising. I am trying to create a condition that shows a "Change in Direction". Rising is Rising whether it has changed direction or not. How do I create a condition that shows a "Change in Direction"?

[NinjaTrader_RyanM1]

You can specify that there was a falling condition just prior to that, by specifying the bars ago setting for the index.

if (MACD(12, 26, 9).Diff[1] < MACD(12, 26, 9).Diff[2]) //Checks if one bar back was less than 2.

[kenb2004]

I tried the following:
//Condition set 7
if (Macd(Fast, Slow, Smooth).Diff[1] > Macd(Fast, Slow, Smooth).Diff[2]
&& Falling(Macd(Fast, Slow, Smooth).Diff) == true)
{
DrawTriangleDown("My triangle down" + CurrentBar, false, 0, (Macd(Fast, Slow, Smooth).Diff[0]) * (1 + 2), Color.Red);
}
It compiled but did not display. When I added condition 7 only an empty panel displayed.

[NinjaTrader_Bertrand]

Ken, please try with a different offset for the drawing object or include in the autoScale to see where it gets placed so you can adjust it's Y axis value as needed.

[kenb2004]

I tried the following and only got a blank panel. I'm trying to get a conditon that watches for a Diff Direction Change, from up to down Or down to up. I'm thinking that the Rising Method isn't the best way to ackomplish this. What do you think?
//Condition set 7
if (Macd(Fast, Slow, Smooth).Diff[1] > Macd(Fast, Slow, Smooth).Diff[2]
&& Falling(Macd(Fast, Slow, Smooth).Diff) == true)
{
DrawArrowDown("My down arrow" + CurrentBar, false, 0, (Macd(Fast, Slow, Smooth)[0]) * (1 + -6), Color.Red);
//DrawTriangleDown("My triangle down" + CurrentBar, false, 0, Diff[0] + .4 * TickSize, Color.Red);
//DrawTriangleDown("My triangle down" + CurrentBar, false, 0, (Macd(Fast, Slow, Smooth).Diff[0]) + .4 * TickSize, Color.Red);
}

[NinjaTrader_Bertrand]

Ken, then it means that your conditon does not evaluate to 'true' to trigger the drawings - please try something like this below -

if (MACD(12, 26, 9).Diff[0] > MACD(12, 26, 9).Diff[1]
&& MACD(12, 26, 9).Diff[1] < MACD(12, 26, 9).Diff[2])

[kenb2004]

That sure looks like it would work but all I get is a blank panel. I've replaced it with other conditons and it works fine, but it doesn't seem to like diff greater than diff???

[NinjaTrader_Bertrand]

Ken, do you see any log errors being reporting in the Control Center log tab as you try the Diff conditions?

[kenb2004]

Yes. _KenMac2 is the name of the script. It works fine until the I put in the code you suggested.
I also put in the following and it works fine:
if (CrossAbove(_KenMac(Fast, Slow, Smooth).Diff, 0.001, 1))

Error on calling the 'OnBarUpdate' method for indicator '_KenMac2' on bar 0: Index was out of range. Must be non-negative and less than the
Parameter name: index
9/21/2010 12:23:34 PM Strategy Starting NinjaScript strategy

[NinjaTrader_RyanM1]

Hi Ken,

You will need to follow this article about accessing invalid objects:
Make sure you have enough bars in the data series you are accessing

To resolve, you can add a CurrentBar check for the highest index [ ] value in your script.

if (CurrentBar < 2)
return;