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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 -----
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
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