Amibroker FAQ

pavilion103 · 26 May 2011

I've just closed the pane with that chart in it and have lost all the analysis I've done (e.g. trend lines, text etc.....)
Is there any way to get that back?
How do I save future analysis? What folder is the current one saved in?

Thanks,
Matt

pavilion103 · 26 May 2011

One final question.

With the bottom chart. How do I have the price numbers (scale) on the right side of the side of the chart but without the horizontal dotted lines going across the chart?

Thanks

colion · 26 May 2011

pavilion103 said:
thanks for that.
At the moment this is the code I've got for the top chart. I've changed the color to black as you've said.
How can I add code so that up days are green and down days are red?

_SECTION_BEGIN("Chart");
Vcolor=IIf(tls>0 AND tlm>0 AND tll>0,colorWhite,IIf(tls>0 AND tlm>0 AND tll<0,colorWhite,
IIf(tls>0 AND tlm<0 AND tll<0,colorWhite,IIf(tls<0 AND tlm<0 AND tll<0,colorWhite,IIf(tls<0 AND tlm>0 AND tll>0,colorWhite,
IIf(tls<0 AND tlm<0 AND tll>0,colorWhite,colorWhite))))));
GraphXSpace = 5;
PlotOHLC( Null, High, Low, Close, "", colorBlack, styleBar | styleThick );

Thanks

You start by defining Up and Down.

For example, up = C > 0; down = C < O; or something else

then incorporate up and down in the color portion of the plot functions. For example,

plot( c, "", iif( up, colorgreen, colorred ), stylebar );

colion · 26 May 2011

pavilion103 said:
I've just closed the pane with that chart in it and have lost all the analysis I've done (e.g. trend lines, text etc.....)
Is there any way to get that back?
How do I save future analysis? What folder is the current one saved in?

Thanks,
Matt

Do you have Auto-save options checked under Tools > Preferences > Miscellaneous?

colion · 26 May 2011

pavilion103 said:
One final question.

With the bottom chart. How do I have the price numbers (scale) on the right side of the side of the chart but without the horizontal dotted lines going across the chart?

Thanks

View attachment 43029

Right click on chart > Parameters > Axis & Grid > Show middle lines = No

All of your questions are addressed in the Users Guide (http://www.amibroker.com/guide/) which you will have to become very familiar with if you are going to use AmiBroker.

pavilion103 · 27 May 2011

colion said:
Right click on chart > Parameters > Axis & Grid > Show middle lines = No

All of your questions are addressed in the Users Guide (http://www.amibroker.com/guide/) which you will have to become very familiar with if you are going to use AmiBroker.

Thanks for the help with those.

For this last post above what I meant was that when I click on that to make the lines disappear, the number on the right hand side (y axis) disappear also. I wanted to make the lines disappear but still be able to see the numbers. Is this possible?

colion · 27 May 2011

pavilion103 said:
Thanks for the help with those.

For this last post above what I meant was that when I click on that to make the lines disappear, the number on the right hand side (y axis) disappear also. I wanted to make the lines disappear but still be able to see the numbers. Is this possible?

Tools > Preferences > Colors > Grid (choose background color)

pavilion103 · 27 May 2011

colion said:
Tools > Preferences > Colors > Grid (choose background color)

Thanks for that

kastin · 28 May 2011

Hey guys does anybody know how to convert dayssince1900() back to a date formatt
IE
daysince1900() returns a number like "40716"

after doing my additions to that number i want to turn "40716" into "22/6/2011"

Cheers
Jon

Andruha · 30 May 2011

colion said:
You must follow the syntax exactly (computers are dumb).

PlotShapes( shape, color, layer = 0, yposition = graph0, offset = -12 );

So, for example:

PlotShapes( shapeUpArrow, colorRed, 0, L, -15 );

Thanks for that colion - I now fixed all my custom indicators!

Andruha · 1 June 2011

Hi people,

Just finished my backtester and before going to sleep I pressed "backtest" button to see if it works. Although results came very positive, there are more than a few things that made me suspicious about having 200%+ return on my capital. In order to resolve my questions I need some information about what values does the code assigns to various variables.

So considering the code below (disregard buy and sell signals - they seem to occur at the right places):

for (i = 1;i < BarCount; i++){
if (Buy == 1){
EP = BuyPrice;
SL = EP - 3*myatr;
target = EP + 2 * (EP - SL);
}
if (L < SL){
Sell = 1;
SellPrice = SL;
target = 0;
SL = 0;
EP = 0;
}
else
//check if target has been reached and if yes trail order by Kijin Sen
if (EP > 0 AND C > target){
SL = KS;
}
//if low on the day is less than KS close position
if (L <= SL){
Sell = 1;
SellPrice = L;
target = 0;
SL = 0;
EP = 0;
}

}

How can a get the code to print SL and target variables for every trade in the report window?

And I guess the more important question - is there a way to run the code step by step to see what it does?

Cheers

howardbandy · 1 June 2011

Hi Andruha --

You can see the value for any variable, such as SL, for every bar in an Exploration using the AddColumn statement.

You can step through the code using Debug.

Thanks,
Howard

TabJockey · 7 June 2011

I am trying to get the average consecutive periods where close is less than previous periods close,and vice versa.

I can code it for the current period but I cant figure out how to go back and average those down runs and up runs over time.

Can anyone help me out?

tminus · 10 June 2011

I am having problems with the Filter option in the Automatic Analysis section of Amibroker.

I am trying to use a watchlist to ignore a certain company as it is skewing the results heavily. But the company is still included in the results.

I have attached images of the settings I am using.

howardbandy · 10 June 2011

Hi TMinus --

If you have checked both the "Freaks" watchlist and "Indexes" group to be certain that the symbols you want to exclude are in those, but unwanted results still show up, then send a message to "support at AmiBroker dot com" and ask for their help.

Thanks,
Howard

TabJockey · 10 June 2011

No thoughts on my problem?

howardbandy · 11 June 2011

TabJockey said:
I am trying to get the average consecutive periods where close is less than previous periods close,and vice versa.

I can code it for the current period but I cant figure out how to go back and average those down runs and up runs over time.

Can anyone help me out?

Hi TabJockey --

I do not understand what you are trying to do. But --- if as you say you can compute the value of that indicator for the current bar, then the MA function will compute the simple moving average of some number of bars ending with the current one. Here in pseudo code:

Indic = xxxx; // Whatever you want, computed for the current bar
LookbackLength = 10;
AverageIndic = MA(Indic,LookbackLength); Compute the average of 10 bars

If this did not get you on the track, put some sample data in Excel, do the calculations in Excel, paste a screen capture of the Excel sheet, along with the formulas you used in each cell, into your next posting.

Or something similar that will let us know what you are trying to do.

Thanks,
Howard

colion · 12 June 2011

TabJockey said:
I am trying to get the average consecutive periods where close is less than previous periods close,and vice versa.

I can code it for the current period but I cant figure out how to go back and average those down runs and up runs over time.

Can anyone help me out?

Show us what you have done for the "current period" so that we can understand what youi are after.

rnr · 12 June 2011

TabJockey said:
I am trying to get the average consecutive periods where close is less than previous periods close,and vice versa.

I can code it for the current period but I cant figure out how to go back and average those down runs and up runs over time.

Can anyone help me out?

Code:

Prds:=100;
CloseDown:=C<Ref(C,-1);
Total:=Sum(CloseDown,Prds);
AverageDn:=Total/Prds;
AverageDn

Elliot · 12 June 2011

How can I conduct a search/filter method on Amibroker for finding stocks less then .030 cents ? Please advise back

Thanks in advance.

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