SMI4 Replication in EasyLanguage

February 21st, 2010, 12:33 AM

Well the title states the objective...

I have a fairly rudimentary version of SMI in easylanguage....

But as you can see the indicator is nothing like the SMI4 indicator provide by TheWizard in the latest Holy Grail package.

I don't very much need the dots or coloring, but I would like to mimic the SMI4's calculations for its +/-0 bias in its calculation.

Apparently its more than just a simple change of the calculation periods (I think at least?).

Can anyone tell me what changes have been made to SMI4 from the most basic rudimentary basic SMI indicator?

I've attached similar timeframes of the same shot comparing the two indicators (keep in mind these platforms calculate range bars slightly differently and they are from different data feeds so they won't be 100%).

February 21st, 2010, 03:06 AM

Thanks for the effort to start converting these

I found SMI elsewhere, this is just a very basic one:

Function

Code

                            
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)));

Indicator

Code

                            
Type : Indicator, Name : SMI                      
input:length1(13),length2(25),length3(2),alertLevel(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");

[img]https://nexusfi.com/v/wswxug.gif[/img]

I've not compiled anything in MultiCharts yet but don't expect any problems. I don't use this one personally although I know many traders here do, so if you would be so kind as to share the final code please do. Upload it to the file sharing section (Downloads), let me know if you run into any problems sharing certain extensions.

Mike

February 21st, 2010, 03:08 AM

BTW, you might contact Todd. He knows a lot about SMI and had a lot of custom work done to the version that many people use here on nexusfi.com (formerly BMT).

Mike

May 23rd, 2010, 02:13 AM

daedalus

Well the title states the objective...

I have a fairly rudimentary version of SMI in easylanguage....

But as you can see the indicator is nothing like the SMI4 indicator provide by TheWizard in the latest Holy Grail package.

I don't very much need the dots or coloring, but I would like to mimic the SMI4's calculations for its +/-0 bias in its calculation.

Apparently its more than just a simple change of the calculation periods (I think at least?).

Can anyone tell me what changes have been made to SMI4 from the most basic rudimentary basic SMI indicator?

I've attached similar timeframes of the same shot comparing the two indicators (keep in mind these platforms calculate range bars slightly differently and they are from different data feeds so they won't be 100%).

Is is true that SMI4's histogram is lagging? I examined the indicator's code, and it uses data from a subsequent cycle to set the histogram's value for the preceding cycle. Here is the code inside the indicator:

if (Falling(esmis))
{
eSMIdn.Set(1, esmis[1]);
eSMIdn.Set(esmis[0]);

}
if (Rising(esmis))
{
eSMIup.Set(1, esmis[1]);
eSMIup.Set(esmis[0]);

}

May 23rd, 2010, 02:17 AM

mihabibi

Is is true that SMI4's histogram is lagging? I examined the indicator's code, and it uses data from a subsequent cycle to set the histogram's value for the preceding cycle. Here is the code inside the indicator:

if (Falling(esmis))
{
eSMIdn.Set(1, esmis[1]);
eSMIdn.Set(esmis[0]);

}
if (Rising(esmis))
{
eSMIup.Set(1, esmis[1]);
eSMIup.Set(esmis[0]);

}

That code repaints. You can learn more about repainting here.

Mike

May 23rd, 2010, 10:42 AM

daedalus

Well the title states the objective...

I have a fairly rudimentary version of SMI in easylanguage....

But as you can see the indicator is nothing like the SMI4 indicator provide by TheWizard in the latest Holy Grail package.

I don't very much need the dots or coloring, but I would like to mimic the SMI4's calculations for its +/-0 bias in its calculation.

Apparently its more than just a simple change of the calculation periods (I think at least?).

Can anyone tell me what changes have been made to SMI4 from the most basic rudimentary basic SMI indicator?

I've attached similar timeframes of the same shot comparing the two indicators (keep in mind these platforms calculate range bars slightly differently and they are from different data feeds so they won't be 100%).

Daedalus,

If i remember correctly, I took a modified version of SMI2 that Cory had done awhile back and, at the time, was calling SMI_MultiColor. It had the SMI, SMIEMA and a differential histogram. I believe it's been reposted to the download section and simply called SMI2. What I did was to swap a couple of plots inside (SMI / Histogram) so that the Histogram became the SMI and the SMI became the histogram, then converted the histogram from bar to dot. I was just playing around with indicator code, having some fun. I liked the way that it looked - similar to an ergodic oscillator. I created a couple of versions (didn't like SMI3), liked SMI4 better, added background coloring so that when the SMIEMA is ABOVE '0', it paints the background blue & if it's below '0' - red, indicating trend direction, added sounds, vertical lines, arrows, etc. etc. That's about it. Nothing special.

For what you want to do, you could use the basic SMI or Cory's SMI2. I believe the code for the SMI2 (minus the histogram plots) is identical to the SMI. Standard Stochastic Momentum Index calculation as proposed by William Blau.

Here's a comment from the SMI indicator, if it helps:

Author: Mathew Wyatt (mathew.wyatt at gmail.com)
// This indicator is the Stochastic Momentum Index by William Blau. Formula for the indicator was found - Re: Bill Blau's formulas, MetaStock Email Archive | PureBytes.Com.

SMI4 Replication in EasyLanguage

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SMI4 Replication in EasyLanguage