Australian (ASX) Stock Market Forum

Amibroker FAQ

Jump to new
rb250660 said:
Back to time periodicy...

I am now trying to find every fortnight. The code below when plotted does the job fine, however when put into a trading system no trades are taken. I don't know why.

Code: 
// Days of the week
timeDayName = DayOfWeek();

// Every Friday
checkEndWeek = timeDayName < Ref( timeDayName, -1 );

// Every fortnight
checkEndWeekCount = Cum( checkEndWeek );
checkEndFortnight = checkEndWeek AND ( checkEndWeekCount % 2 == 0 );

This is for a rotational trading system and after running the backtest with detailed log it shows scoring weekly but no trades are taken which is a clue I guess. Any help appreciated.
Click to expand...

I think you are getting what you want, but just so you know that you are identifying Monday or the Start of the Week not the "EndWeek" or end of a week (usually a Friday). Your variables are all named "End...." implying to me at least a Friday or end of a week.
 
trash said:
And what list of ETFs are you applying it to.
Click to expand...

The problem occurs regardless of what ticker I apply my code to with the exception of the XAO index ticker. I think the issue is with the variety of non-trading days that occur across a basket of ETF's or stocks.
 
Portfoliobuilder said:
I think you are getting what you want, but just so you know that you are identifying Monday or the Start of the Week not the "EndWeek" or end of a week (usually a Friday). Your variables are all named "End...." implying to me at least a Friday or end of a week.
Click to expand...

This is just naming convention in my code and is to do with trade delays etc. I can see how it may be confusing. I check for signals on Friday, trade on Monday.
 
Why is my bar counter not working?:rolleyes:

Code: 
// Bar counter
bars = 0;
for( i = 0; i < BarCount; i++ )
{
  if( bars > 0 ) bars[i++];
  if( Buy ) bars= 1;
  if( Sell ) bars= 0;
}

I only want to count bars while I'm in a trade.
 
rb250660 said:
Why is my bar counter not working?:rolleyes:

Code: 
// Bar counter
bars = 0;
for( i = 0; i < BarCount; i++ )
{
  if( bars > 0 ) bars[i++];
  if( Buy ) bars= 1;
  if( Sell ) bars= 0;
}

I only want to count bars while I'm in a trade.
Click to expand...

Dear rb, have you considered asking your questions on the most active AmiBroker user forum? There are many above average to excellent programmers as well as TJ (AB creator) himself often answering questions by posters. I believe you are more likely to find assistance on that forum.

Look it up and register, and I will post an answer to your latest question if one of the other more expert coders doesn't respond.
https://groups.yahoo.com/neo/groups/amibroker/conversations/messages

Good luck, hope to see you on the other side.

PB
 
rb250660 said:
Why is my bar counter not working?:rolleyes:

Code: 
// Bar counter
bars = 0;
for( i = 0; i < BarCount; i++ )
{
  if( bars > 0 ) bars[i++];
  if( Buy ) bars= 1;
  if( Sell ) bars= 0;
}

I only want to count bars while I'm in a trade.
Click to expand...


You code is not correct that's why it is not working.

First of all Buy and Sell variables are arrays! You need to use subscript operator in order to access elements of an array.

Secondly use flag initialized to false:
if buy then flag is set to true, if sell flag is set to false.
If sell the reset bars counter.
In addition add if statement checking for true flag and where you count bars in trade;

last but not least create barsarr variable to store bars counter at each array index.
Code: 
barsarr[i] = bars;

The next thing is: you don't need loop as you can make bar counter with existing functions Flip() and BarsSince().
 
trash said:
You code is not correct that's why it is not working.

First of all Buy and Sell variables are arrays! You need to use subscript operator in order to access elements of an array.

Secondly use flag initialized to false:
if buy then flag is set to true, if sell flag is set to false.
If sell the reset bars counter.
In addition add if statement checking for true flag and where you count bars in trade;

last but not least create barsarr variable to store bars counter at each array index.
Code: 
barsarr[i] = bars;

The next thing is: you don't need loop as you can make bar counter with existing functions Flip() and BarsSince().
Click to expand...

Correction:
If sell then reset bars counter.

trash said:
In addition add if statement checking for true flag and where you count bars in trade;
Click to expand...
By that one it is meant like this
Code: 
if( flag )
    bars++;
 
If you are referring to me then yes, my problem is fixed. Thanks for your help trash. I actually used a nested loop, the primary loop triggered the buy and recorded the bar count, then nested under that was the sell which was either on a signal or a maximum bar count (timed exit).
 
trash said:
Is you loop problem solved actually? If you are just waiting for copy&paste ready codes then Portfoliobuilder and me will save our time responding next time.
Click to expand...

OT to trash

I am very impressed by your Custom Chart Trading plugin, I was looking for it for a long time. Is it possible to buy it?

thanks

sorry for the OT here
 
Say I buy today and I want to sell if any subsequent bar's close is less than the low of the bar when the buy signal is created. How to do that please?
 
GB - use a nested loop. In the first loop which triggers a Buy = true, store the low L[j]. Then in the sub loop keep iterating and checking if the current close C[k] < L[j]. If yes, Sell = true.

See how you go!
 

Similar threads

basilio
How valuable are two parent families?
2
Replies
28
Views
3K
Value Collector
Value Collector
DrBourse
DrBourse TA Help for Beginners
14 15 16
Replies
319
Views
65K
farmerge
farmerge
R
The 5 Characteristics of A Platform that Determine its Network Effect
Replies
3
Views
2K
Dona Ferentes
Dona Ferentes
R
First, Kill Your Ideas
Replies
2
Views
1K
finicky
finicky
R
21 Lessons in Investing
Replies
6
Views
3K
divs4ever
divs4ever
Top