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My thanks to Herman, dingo, Dimitris, and Ara for your help. For the
info of anyone else who's interested in doing this sort of thing,
here are my modified test files which produce the result I've been
seeking. Access the right-click parameter box in the Parameters pane,
move the slider as desired, close the box, hit F5, and the ATR and
RSI indicators are immediately updated to the new period value. The
TestPeriod.par file created by the SS function is stored in the main
AmiBroker folder and re-saves itself automatically whenever the
slider is moved (even before the parameter box is closed). Now the
fun can begin. Here are the files:
*** File ...\AmiBroker\AFL\Parameters.afl ***
/* -- Parameters -- */
function SS(FileName,String)
{
fh=fopen(FileName,"w");
if(fh)
{
fputs(String,fh);
fclose(fh);
}
return fh;
}
TestPeriod=Param("TestPeriod",10,5,20,1);
TestPeriodString=NumToStr(TestPeriod,1.0);
SS("TestPeriod.par",TestPeriodString);
Title="\\c55"
+Name()
+"\\c42 Parameters"
+"\\c49 TestPeriod: \\c55"
+WriteVal(TestPeriod,1.0);
*** File ...AmiBroker\AFL\TestATR.afl ***
/* -- TestATR -- */
function RS(FileName)
{
fh=fopen(FileName,"r");
Str=fgets(fh);
return Str;
}
TestPeriodString=RS("TestPeriod.par");
TestPeriod=StrToNum(TestPeriodString);
Plot(ATR(TestPeriod),"",colorPink,styleLine);
Title="\\c55"
+Name()
+"\\c42 TestATR"
+"\\c49 TestPeriod (for graph): \\c55"
+WriteVal(TestPeriod,1.0);
*** File ...AmiBroker\AFL\TestRSI.afl ***
/* -- TestRSI -- */
function RS(FileName)
{
fh=fopen(FileName,"r");
Str=fgets(fh);
return Str;
}
TestPeriodString=RS("TestPeriod.par");
TestPeriod=StrToNum(TestPeriodString);
Plot(RSI(TestPeriod),"",colorBrightGreen,styleLine);
Title="\\c55"
+Name()
+"\\c42 TestRSI"
+"\\c49 TestPeriod (for graph): \\c55"
+WriteVal(TestPeriod,1.0);
Best regards, Ned
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