Getting the moving
average result outside the loop does my head in because it doesn’t look
like it will work. I tried it and it is also very slow. I tried
your first example, which works perfectly.
Thank you very much,
Rush
From:
amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf Of emp62
Sent: 01 April 2006 13:24
To: amibroker@xxxxxxxxxxxxxxx
Subject: Re: [amibroker] Still
confused
these type of calculations can be done using arrays only,
like
Periods = Param("Periods", 5, 2, 200, 1, 1 );
mo = MA( Open,
Periods);
mh = MA( High,
Periods);
mc = MA( Close,
Periods);
TheDiff = IIf(mo < mc,mh - mc,IIf(mo > mc,mh - mo, 0));
Color = IIf(mo < mc,colorBlue,IIf(mo
> mc,colorRed, colorGreen));
Plot( TheDiff, "SC Plus", Color, styleHistogram);
You can also do it using loops. However you can take
mo = MA( Open,
Periods);
mh = MA( High,
Periods);
mc = MA( Close,
Periods);
outside of the
loop like (then it goes much faster):
Periods = Param("Periods", 5, 2, 200, 1, 1 );
Color = Null;
TheDiff = Null;
mo
= MA( Open,
Periods);
mh
= MA( High,
Periods);
mc
= MA( Close,
Periods);
for( i = 0; i < BarCount;
i++ ) {
if(mo[i] < mc[i]){
TheDiff[i] = mh[i] - mc[i];
Color[i] = colorBlue;
}else if(mo[i] > mc[i]){
TheDiff[i] = mh[i] - mo[i];
Color[i] = colorRed;
}else{
TheDiff[i] = 0;
Color[i] = colorGreen;
}
}
Plot( TheDiff, "SC Plus", Color, styleHistogram);
----- Original Message -----
Sent: Saturday, April
01, 2006 12:59 PM
Subject: [amibroker] Still
confused
Hi,
I’m still confused on how to use the
variables. The code below seems to work but slows AmiBroker down.
It seems that the “if” statement doesn’t like to see the
variables mo, mh, mc without the square brackets. All I’m trying to
do here is plot the difference between the average high and average open/close
in a colour depending of the result as a histogram.
Question: is it possible to define a
variable that is not an array?
Periods = Param("Periods", 5, 2, 200, 1, 1 );
Color = Null;
TheDiff = Null;
for( i = 0; i < BarCount;
i++ ) {
mo = MA( Open,
Periods);
mh = MA( High,
Periods);
mc = MA( Close,
Periods);
if(mo[i] < mc[i]){
TheDiff[i] = mh[i] - mc[i];
Color[i] = colorBlue;
}else if(mo[i] > mc[i]){
TheDiff[i] = mh[i] - mo[i];
Color[i] = colorRed;
}else{
TheDiff[i] = 0;
Color[i] = colorGreen;
}
}
Plot( TheDiff, "SC Plus", Color, styleHistogram);
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