GP,
thanks for your reply. In Yahoo you can not view attachements but if you tell
Yahoo to forward the Email to your ISP Email adres then you will receive the
attachments.
I will poste the code below.
First about your code. I will try to use it and recreate what I have done.
Second about your remarks. I added some code that outputs i and j. The output
looks like (a snapshot)
II: 50
II: 51
II: 52
II: 53
JJ: 54
JJ: 55
JJ: 56
JJ: 57
JJ: 58
JJ: 59
II: 60
II: 61
II: 62
you see that i = 53 and then goes to j = 54 and get back into the i loop at 60
after the last element in the j loop was 59. This seems right to me. If it
would skip a bar at the end of the inner loop I would think that one would get
JJ: 59
II: 61
This is not the case.
Then you say there is an overflow in the j loop. Guess my former code was not
adjusted for that. I avoid this in the later code (see below),
rgds, Ed
procedure setup_proc(Setup, MaxWaitPeriod) {
global SetupAdjusted;
global SetupPrice;
SetupPrice = Null;
SetupAdjusted = Setup;
for (i = 0; i < BarCount; i++) {
printf("II: " + i + "\n" );
if (SetupAdjusted[ i ]) {
for (j = i + 1; j < BarCount; j++) {
printf("JJ: " + j + "\n" );
if (H[ j ] < H[ i ] AND (j - (i + 1) ) <= MaxWaitPeriod) {
SetupAdjusted[ j ] = 0;
SetupPrice[ j ] = H[ i ];
} else if (H[ j ] < H[ i ] AND (j - (i + 1) ) >= MaxWaitPeriod) {
SetupAdjusted[ j ] = 0;
SetupPrice[ j ] = H[ i ];
i = j;
break;
} else if (H[ j ] >= H[ i ]) {
SetupPrice[ j ] = H[ i ];
i = j;
break;
} else if (j == BarCount - 1) {
break;
}
}
}
}
}
SetBarsRequired(10000,10000);
per = Param( "Period", 20, 2, 100 );
SetupPrice = Null;
MaxWaitPeriod = 10;
Setup = C < BBandBot(C,per,2);
setup_proc(Setup, MaxWaitPeriod);
Setup = SetupAdjusted;
Buy = Cross(H,SetupPrice) AND !IsNull(SetupPrice);
BuyPrice = IIf(O > SetupPrice,O,SetupPrice);
SetChartOptions(0, chartShowDates);
GraphXSpace = 5;
Plot(C,"C",1,64);
Plot(BBandBot(C,per,2),"",colorGold,1);
Plot(SetupPrice,"",colorLightBlue,1);
PlotShapes(IIf(Setup,shapeSmallCircle,0),colorYellow, layer = 0, yposition = L,
offset = 0 );
----- Original Message -----
From: gp_sydney
To: [email protected]
Sent: Friday, June 15, 2007 1:00 PM
Subject: [amibroker] Re: Looping - our previous discussion
Ed,
I can't get your attachements. They show at the bottom of the message
but also say "not stored", and there's nothing to get. Any idea why
that might be (it seems to be the same for all messages with
attachments here)?
I looked back at the original discussion, and from what it seems like
the objective is to me, I think the whole thing can be done like this:
Setup = ExRemSpan(C < BBandBot(C, 20, 2), waitPeriod-1);
SetupPrice = ValueWhen(Setup,H) * triggerPercentage;
Buy = Cross(H, SetupPrice) && BarsSince(Setup) < waitPeriod;
All that loop code can be replaced by the ExRemSpan array function.
Also, in that original loop code, there are a couple of problems.
Firstly, it skips a bar at the end of each inner loop, because the
statement i=j sets i to the next bar, but then the for loop's i++
statement increments it straight away. It should be i=j-1. Secondly,
it won't run to the end of the array. The outer loop's condition
should be i < BarCount but then the inner loop needs to add "AND j <
BarCount" to its condition to avoid over-running the array.
Regards,
GP
