|
PureBytes Links
Trading Reference Links
|
I've being working with our more recent
features of StrExtract and StrToNum functions and have come up with what I think
are some Novel uses. This is the first post of several describing these
uses. These AFL examples are my stepping stones toward some more advanced
uses of this concept.
This example shows how we can set
up Stock specific indicator settings. Below I've borrowed the
StochRSI and modified it so that we can set the "Period" and "Smooth"
factors automatically for a list of tickers. When one of these tickers is
displayed, your settings are automatically applied. If a ticker is not in
that list, default values are used (in this case variable by use of Param
function). The list is a comma separated list built by the
addition in order of Ticker, Period value,Smooth value ( <FONT
face="Times New Roman" color=#008000>"Ticker1,Period1,Smooth1,Ticker2,period2
...etc ). This list can be modified on the
Fly from within the Indicator Window, by just right mouse click -> edit
formula -> then add new "....Ticker,Period,Smooth" to the end of your
list. This concept can easily be modified for any indicator with user
defined values.
Enjoy, and watch for those line
wraps.
Andrew
ps. I'm sure its obvious but if your
not using Australian Tickers, change the CustomStochRSIList to reflect your
own.
// Stock Specific StochRSI settings - by Andrew Perrin.
// This AFL allows user defined settings to be automatically applied to
selected Tickers.
// Build custom list - "Ticker1,Period1,Smooth1,Ticker2,period2
...etc
CustomStochRSIList = <FONT face="Courier New" color=#ff00ff
size=1>"NAB,25,2,ANZ,40,5,CBA,6,2,NCPDP,40,15"<FONT face="Courier New"
size=1>;
Period = <FONT face="Courier New" color=#0000ff
size=1>Param(<FONT
face="Courier New" color=#ff00ff size=1>"Periods"<FONT face="Courier New"
size=1>,33<FONT
face="Courier New" size=1>,<FONT face="Courier New" color=#ff00ff
size=1>5,<FONT face="Courier New"
color=#ff00ff size=1>40,<FONT
face="Courier New" color=#ff00ff size=1>1<FONT face="Courier New"
size=1>); //default period
value for tickers not in custom
list
Smooth = <FONT face="Courier New" color=#0000ff
size=1>Param(<FONT
face="Courier New" color=#ff00ff size=1>"Smoothing"<FONT
face="Courier New" size=1>,<FONT face="Courier New" color=#ff00ff
size=1>5,<FONT face="Courier New"
color=#ff00ff size=1>2,<FONT
face="Courier New" color=#ff00ff size=1>15<FONT face="Courier New"
size=1>,1<FONT
face="Courier New" size=1>); <FONT face="Courier New" color=#008000
size=1>//default smooth value
Custom = 0<FONT
face="Courier New" size=1>;<FONT face="Courier New" color=#800000
size=1>
for( i = <FONT
face="Courier New" color=#ff00ff size=1>0<FONT face="Courier New"
size=1>; ( sym = <FONT face="Courier New" color=#0000ff
size=1>StrExtract( CustomStochRSIList, i
) ) != ""<FONT
face="Courier New" size=1>; i=i+<FONT face="Courier New" color=#ff00ff
size=1>3)
{
if(<FONT face="Courier New"
color=#0000ff size=1>Name()==sym)
{
Period = <FONT face="Courier New" color=#0000ff
size=1>StrToNum(<FONT
face="Courier New" color=#0000ff size=1>StrExtract<FONT
face="Courier New" size=1>(CustomStochRSIList, i+<FONT face="Courier New"
color=#ff00ff size=1>1));
Smooth = <FONT face="Courier New" color=#0000ff
size=1>StrToNum(<FONT
face="Courier New" color=#0000ff size=1>StrExtract<FONT
face="Courier New" size=1>(CustomStochRSIList, i+<FONT face="Courier New"
color=#ff00ff size=1>2));
Custom = 1<FONT
face="Courier New" size=1>;
}
}
storsi =Nz<FONT
face="Courier New" size=1>( ( <FONT face="Courier New" color=#0000ff
size=1>RSI( period) - <FONT
face="Courier New" color=#0000ff size=1>LLV<FONT face="Courier New"
size=1>( RSI<FONT
face="Courier New" size=1>(period) ,period) ) / ( ( <FONT
face="Courier New" color=#0000ff size=1>HHV<FONT face="Courier New"
size=1>( RSI<FONT
face="Courier New" size=1>(period) ,period) ) - <FONT face="Courier New"
color=#0000ff size=1>LLV(<FONT
face="Courier New" color=#0000ff size=1>RSI<FONT face="Courier New"
size=1>(period),period) ) ); <FONT face="Courier New" color=#0000ff
size=1>
Plot(<FONT face="Courier New"
color=#0000ff size=1>EMA<FONT face="Courier New"
size=1>(storsi,<FONT face="Courier New" color=#ff00ff
size=1>5),<FONT face="Courier New"
color=#0000ff size=1>EncodeColor<FONT face="Courier New"
size=1>(colorWhite)+Period+<FONT face="Courier New" color=#ff00ff
size=1>" period Sto Rsi."<FONT face="Courier New"
size=1>,colorBlue,<FONT face="Courier New" color=#ff00ff
size=1>1); <FONT
face="Courier New" color=#0000ff size=1>
Plot(<FONT face="Courier New"
color=#0000ff size=1>EMA(<FONT
face="Courier New" color=#0000ff size=1>EMA<FONT face="Courier New"
size=1>(storsi,<FONT face="Courier New" color=#ff00ff
size=1>5),smooth),<FONT
face="Courier New" color=#ff00ff size=1>""<FONT face="Courier New"
size=1>+smooth+" period
smoothing."<FONT face="Courier New"
size=1>,colorYellow,<FONT face="Courier New" color=#ff00ff
size=1>1); <FONT
face="Courier New" color=#0000ff size=1>
Plot(.30,<FONT
face="Courier New" color=#ff00ff size=1>""<FONT face="Courier New"
size=1>,colorRed,<FONT face="Courier New" color=#ff00ff
size=1>1); <FONT
face="Courier New" color=#0000ff size=1>
Plot(.80,<FONT
face="Courier New" color=#ff00ff size=1>""<FONT face="Courier New"
size=1>,colorGreen,<FONT face="Courier New" color=#ff00ff
size=1>1);
Buy=<FONT face="Courier New" color=#0000ff
size=1>Cross(<FONT
face="Courier New" color=#0000ff size=1>EMA<FONT face="Courier New"
size=1>(storsi,<FONT face="Courier New" color=#ff00ff
size=1>5),<FONT face="Courier New"
color=#0000ff size=1>EMA(<FONT
face="Courier New" color=#0000ff size=1>EMA<FONT face="Courier New"
size=1>(storsi,<FONT face="Courier New" color=#ff00ff
size=1>5),smooth));
Sell=<FONT face="Courier New" color=#0000ff
size=1>Cross(<FONT
face="Courier New" color=#0000ff size=1>EMA<FONT face="Courier New"
size=1>(EMA<FONT
face="Courier New" size=1>(storsi,<FONT face="Courier New" color=#ff00ff
size=1>5),smooth),<FONT
face="Courier New" color=#0000ff size=1>EMA<FONT face="Courier New"
size=1>(storsi,<FONT face="Courier New" color=#ff00ff
size=1>5));
Title = <FONT face="Courier New" color=#0000ff
size=1>WriteIf(Custom == <FONT
face="Courier New" color=#ff00ff size=1>1<FONT face="Courier New"
size=1>,"StochRSI
"+<FONT face="Courier New"
color=#0000ff size=1>EncodeColor<FONT face="Courier New"
size=1>(colorRed)+<FONT face="Courier New" color=#ff00ff
size=1>"(List Defined values.)"<FONT face="Courier New"
size=1>,"StochRSI
"+<FONT face="Courier New"
color=#0000ff size=1>EncodeColor<FONT face="Courier New"
size=1>(colorYellow)+<FONT face="Courier New" color=#ff00ff
size=1>"(Default values)")+ <FONT
face="Courier New" color=#0000ff size=1>EncodeColor<FONT
face="Courier New" size=1>(colorBlack)+<FONT face="Courier New"
color=#ff00ff size=1>"(Periods = "<FONT face="Courier New"
size=1>+Period+". Smoothing
= "+Smooth+<FONT
face="Courier New" color=#ff00ff size=1>" periods.)"<FONT
face="Courier New" size=1>;<FONT face="Courier New" color=#0000ff
size=1>
PlotShapes(<FONT
face="Courier New" color=#0000ff size=1>IIf<FONT face="Courier New"
size=1>(Buy,shapeUpArrow,shapeNone)
,colorBrightGreen,<FONT face="Courier New" color=#ff00ff
size=1>0,Graph0,-<FONT
face="Courier New" color=#ff00ff size=1>30<FONT face="Courier New"
size=1>);
PlotShapes(<FONT
face="Courier New" color=#0000ff size=1>IIf<FONT face="Courier New"
size=1>(Sell,shapeDownArrow,shapeNone),colorRed,<FONT
face="Courier New" color=#ff00ff size=1>0<FONT face="Courier New"
size=1>,Graph1,-<FONT face="Courier New" color=#ff00ff
size=1>15);
GraphXSpace=<FONT face="Courier New" color=#ff00ff
size=1>10;
Yahoo! Groups Sponsor
Send BUG REPORTS to bugs@xxxxxxxxxxxxx
Send SUGGESTIONS to suggest@xxxxxxxxxxxxx
-----------------------------------------
Post AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx
(Web page: http://groups.yahoo.com/group/amiquote/messages/)
--------------------------------------------
Check group FAQ at: http://groups.yahoo.com/group/amibroker/files/groupfaq.html
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
|