Rate of Change

[kaywai]

Hi, I've written script to calculate the SMA and plot it. I would now like to compare the rate of change of those SMA points such as the most recent SMA point , SMA[0] vs the SMA of 5 bars ago, SMA[5]. I would also, if possible, like to change the color of the plotted line to reflect positives and negatives rate of change. Could you please provide some guidance? Script is enclosed.

[NinjaTrader_Bertrand]

Kay, you can check into this reference sample for how to achieve plot color changes - http://www.ninjatrader-support2.com/...ead.php?t=3227

The condition in the sample is just a Rising, Falling one, you could replace this then with your custom needed one (i.e. if (SMA[0] > SMA[5]....)

[kaywai]

Hi Bertrand,

I followed most of the code but couldn't get a plot. I suspect it's the SMA(fastperiod)[0] >SMA(fastperiod)[5] portion that I've gotten wrong. Would you mind taking a look? It's to compare whether the current SMA(fastperiod) is greater than SMA(fastperiod) of 5 bars ago. Code is attached.

Thanks.
Kay Wai

[NinjaTrader_Bertrand]

Kay, you need a higher current bar check then if you reference back further like the 5 bars you do in this script.

[FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]
protected[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] [/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]override[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] [/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]void[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] OnBarUpdate()
{
[/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]if[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] (CurrentBar<[/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]5[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]) [/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]return[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2];[/SIZE][/FONT][/SIZE][/FONT]
[FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]....[/SIZE][/FONT][/SIZE][/FONT]
[FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]}
[/SIZE][/FONT][/SIZE][/FONT]

[kaywai]

Thanks Bertrand!
Just one observation. When I add a separate "slower" SMA Line, i.e having 2 SMA lines running from the same script, some points don't even appear on the chart. So I separated the SMA lines into 2 different files. Looks just the way I wanted it!