# Explanation and Basic Things.

#### mastermind007

##### Well-Known Member
Two types of alfs regarding the RSi one is connors rsi and other turbo rsi.
don't know much about these , what the difs etc., but giving here in quotes both.
Both are improvements over basic RSI. You've already posted good explanation of Connor. Best thing to do is to plot both together in different color and see which has better signal-to-noise ratio

#### mastermind007

##### Well-Known Member
what is Linear Regression and how it is calculated.
what is Avg True Range and how to calculate it.
Both are intermediate level statistical models and you will find references in
good stats book (used in BCom, MMS etc)

In plain language, Linear regression attempts to place past data into one straight line (linear) and then extend that line on right-hand-side to predit what the next value should be

ATR is some kind of mean/median.

I am told that the best book for non-statso's (like me ) is one titled Econometrics by Damodar Gujarati but I am yet to find me a copy.

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#### Bewinner

##### Well-Known Member
Two types of alfs regarding the RSi one is connors rsi and other turbo rsi.
don't know much about these , what the difs etc., but giving here in quotes both.
How to use connors RSI

#### mastermind007

##### Well-Known Member
How to use connors RSI
Connor Uvaca:
Duration of Up Trend vs. Down Trend "Streak" days: Connors research shows
that the longer the number of consecutive days up OR down, the more likely
the security is likely to bounce when it reverts to the mean. Likewise, the
*magnitude* of the mean reversion snap-back is correlated with the streak length.

#### derekworswick

##### New Member
Re: Explanation and Basic Things...Turbo JRSX

Hi,

Could anyone be kind enough to covert the Amibroker code below for
Turbo JRSX previously posted posted on this site into

under Re: Explanation and Basic Things.

Hopng you can oblige,
Best regards,

Derek

--------------------------------------

Code:
``````/*

Turbo_JRSX : a better RSI ?

Original source code : http://codebase.mql4.com/source/6182

*/

SetChartOptions (0, 0, chartGrid20 | chartGrid50 | chartGrid80);

Len = Param ( "Periods", 12, 1, 200, 1 );

function JRSX ( Period )
{

f88 = 0; f90 = 0; f0 = 0; v4 = 0; v8 = 0; vC = 0; v10 = 0; v14 = 0; v18 = 0; v20 = 0;
f8 = 0; f10 = 0; f18 = 0; f20 = 0; f28 = 0; f30 = 0; f38 = 0; f48 = 0; v1C = 0;
f50 = 0; f58 = 0; f60 = 0; f68 = 0; f70 = 0; f78 = 0; f80 = 0; f40 = 0;

f90 = 1.0;
f0 = 0.0;

if ( Period-1 >= 5 )
f88 = Period-1.0;
else
f88 = 5.0;

f8 = 100.0 * ((H[0]+L[0]+Close[0])/3);
f18 = 3.0 / (Period + 2.0);
f20 = 1.0 - f18;

for ( i = 1; i < BarCount; i++ )
{
if (f88 <= f90) f90 = f88 + 1; else f90 = f90 + 1;
f10 = f8;
// f8 = 100*Close[i];
f8 = 100.0*((H[i]+L[i]+C[i])/3);
v8 = f8 - f10;
f28 = f20 * f28 + f18 * v8;
f30 = f18 * f28 + f20 * f30;
vC = f28 * 1.5 - f30 * 0.5;
f38 = f20 * f38 + f18 * vC;
f40 = f18 * f38 + f20 * f40;
v10 = f38 * 1.5 - f40 * 0.5;
f48 = f20 * f48 + f18 * v10;
f50 = f18 * f48 + f20 * f50;
v14 = f48 * 1.5 - f50 * 0.5;
f58 = f20 * f58 + f18 * abs (v8);
f60 = f18 * f58 + f20 * f60;
v18 = f58 * 1.5 - f60 * 0.5;
f68 = f20 * f68 + f18 * v18;

f70 = f18 * f68 + f20 * f70;
v1C = f68 * 1.5 - f70 * 0.5;
f78 = f20 * f78 + f18 * v1C;
f80 = f18 * f78 + f20 * f80;
v20 = f78 * 1.5 - f80 * 0.5;

if ((f88 >= f90) && (f8 != f10)) f0 = 1.0;
if ((f88 == f90) && (f0 == 0.0)) f90 = 0.0;
if ((f88 < f90) && (v20 > 0.0000000001))
{
v4 = (v14 / v20 + 1.0) * 50.0;
if (v4 > 100.0) v4 = 100.0;
if (v4 < 0.0) v4 = 0.0;
}
else
{
v4 = 50.0;
}

rsx[i] = v4;
}

return rsx;
}

Plot ( JRSX(Len), "Turbo JRSX", ParamColor ( "Color", colorCycle ), ParamStyle ("Style"), 0, 100 );``````

#### amazed

##### New Member
Hi,
I can not see lower time frame in my Amibroker5.7's back testing analysis setting window. Day and higher time frame is visible but no lower time frame. Is it my windows OS problem or Ami problem?
Can anyone help me to overcome this issue?

#### trash

##### Well-Known Member
Hi,
I can not see lower time frame in my Amibroker5.7's back testing analysis setting window. Day and higher time frame is visible but no lower time frame. Is it my windows OS problem or Ami problem?
Can anyone help me to overcome this issue?
It is neither OS or AmiBroker problem. It is a user error/lack of knowledge. You have to set base time interval in File-> Database settings.