Stoch Momentum Indicator

[Angel]

Hello all,

Is there anybody on this board able to translate the SMI :

Stochastic Momentum Indicator by William Blau. The result is an oscillator that ranges between +/- 100 and is a bit less erratic than an equal period Stochastic Oscillator. While similar to the Stochastic Oscillator, the SMI displays where the close is relative to the midpoint of the recent high/low range, as compared to the close relative to the recent high/low with the Stochastic Oscillator. This results is an oscillator that ranges between -100 and +100 and can be a bit less erratic than an equal period Stochastic Oscillator.


An example formula (see Stochastic Momentum Index) illustrates the calculation of the Stochastic Momentum Index. When the close is greater than the midpoint of the range, the SMI is positive. When the close is less than the midpoint of the range, it is negative. The interpretation of the SMI is virtually identical to the Stochastic Oscillator.

Stochastic Momentum Indicator

100 * ( Mov( Mov(C - (.5 * ( HHV(H,13) + LLV(L,13))),25,E),2,E)/
(.5*Mov(Mov( HHV(H,13) - LLV(L,13),25,E),2,E)))

Many thanks for your attention,

Happy trading

Cheers

Angel

[Angel]

Hello,

This is below the Easy Language code for the SMI, it would be so kind if someone could translate it in NT code. Sincerely, adding the SMI in our trading arsenal would be an edge !!!

Thanks for your careful attention,

Happy trading,

Cheers

Angel

.................................................. .................................................. ....

Type : Function, Name : SMI

input:
length1(NumericSimple),
length2(NumericSimple),
length3(NumericSimple);

var:
HH(0),
LL(0);

HH = Highest(H,length1);
LL = Lowest (L,length1);

SMI = 100 * (XAverage(XAverage(C-(0.5*(HH+LL)),length2),length3) /
(0.5 * XAverage(XAverage(HH-LL,length2),length3)));

.................................................. .................................................. ...

Type : Indicator, Name : SMI

input:length1(13),length2(25),length3(2),alertLeve l(40);

plot1( smi(length1,length2,length3), "SMI" );
plot2( alertLevel, "sell line" );
plot3(-alertLevel, "buy line" );

if plot1 crosses above -alertLevel then
alert("SMI crosses above buy line");

if plot1 crosses below alertLevel then
alert("SMI crosses below sell line");

[mwyatt]

So, i put this together but am not sure if it is correct, as i have nothing to compare against. Some comments please? Or if someone would like to make some code adjustments, please do.

cheers
Mat

[mahlonhersh]

Doesn't look like this indicator works. It didn't show any data for me.

Thanks,

Mahlon

[NinjaTrader_Jason]

Hi Mahlon,

I tested the indicator on my end and it plotted data as you can see in the screenshot.

I suggest to delete the indicator via Tools-->Edit NinjaScript-->Indicator.

Re-import the indicator and check if it will plot data. If not, please check the Log-tab for any error messages.

[mahlonhersh]

Jason,

Thanks for your help. I followed your suggestion and it worked great.

Mahlon

[bluejay]

Hi Jason,

this indicator looks great, but one problem is : it works on some instruments (eg FDAX), but not with others (eg ES)

any hints what's the matter ?

thanks in advance

bluejay

[NinjaTrader_Josh]

Hi bluejay,

This is not an indicator we made. You want to contact the original author, mwyatt.

[mni4tw]

the smi indicator doesnt draw anything in my chart. (just empty)

any suggestion/help?

in the log it says "DefaultError on plotting indicator 'StochasticMomentumIndex'. Please check the 'OnBarUpdate' or the 'Plot' method: Overflow error."

[NinjaTrader_Ray]

You would have to debug or ask the original author to do so.

[GorSvet]

Here is another version of Stochastic Momentum Index which doesn't get an Overflow error. I tested it against Thinkorswim built-in SMI indicator.

[Drakmyre]

Hey Everyone,

Does anyone know how to set this to a 20/80 setting instead of -40/40?

[Elliott Wave]

You can also edit the script and in the initialize section change the line values.

[Drakmyre]

Hey EW,

The lines still plot normally. Is there a way to change this?

[Elliott Wave]

Its working fine for me here, unless I'm misunderstanding your problem.