AFL writing guide for new user

[preethnfo]

I am looking for the experts suggestions in these things. please do let me know this.

How to round up the candle high low close price (not while displaying) for calculations only in the afl code writing. (anywhere in traderji math functions info).
the round up may be like this. //....>=29.60 as 30 and <29.60 as 29....//

How to write afl with a series of "if - else structure" and store the final result in the variable.

 

[vseenu]

Dear D Mukherjee, Thank you so much for the time you have taken to teach the new comers. I think only few people have such qualities and you are one among them here

 

[val2004]

I have some code in visual basic that I would like to translate in afl

>question is the translation takes a long time ??

I have absolute no experience in coding in afl

thks for any input

 

[Debarghya Mukherjee]

read this, it will help you

http://www.amibroker.com/docs/ab400.html

I have some code in visual basic that I would like to translate in afl

>question is the translation takes a long time ??

I have absolute no experience in coding in afl

thks for any input

 

[Bombay_Trader]

Great job DM,
Thanks a lot for these insights in AFL writing :thumb:

I have a questions though :

In some AFL's i have seen it shows entry point, stop loss and P/L values on the upper left corner. How can we program that into our code ?

 

[apdd2003]

Hi DM,
Thanks for this great thread.....

I used your code for plottext and added say() command. so whenever buy signal is generated audio is played.
But problem is whenever i move mouse pointer or scroll chart it starts playing audio of last signal... how to avoid this??

for( i = 0; i < BarCount; i++ )
{
if( Buy ) PlotText( "Buy\n@" + C[ i ], i, L[ i ]-dist, colorGreen,colorYellow );
if( Buy ) Say("Buy Alert: Buy now");
if( Sell ) PlotText( "Sell\n@" + C[ i ], i, H[ i ]+dist, colorRed, colorYellow );
if( Sell ) Say("Sell Alert: Sell now");
}

 

[Kironbgd]

This thread gave me a lot to learn AFL writing....I am grateful to Mr DM. I didn't know ABC about AFL coding but now a little bit confident only going through this topics most of the time.
However still I'm eagerly waiting to see the code for the following chart..!

 

[Kironbgd]

My 2nd request is, how can be developed a good AFL in the following scenario?

I am trying to write an AFL for positive, negative and hidden divergences, But due to lack of knowledge of coding, m unable to write it clearly. Request seniors to help me writing the AFL.
For finding divergence, I watch Price, Indicators (Fast MACD 5,10,9, Slow MACD 12,26,9, Stochastic 14,3,3 and RSI 14,9) and Trendlines on Price. Breaking TL on Price it will confirm the divergence.
Below is the strategy:
NEGATIVEDIVERGENCE
1-Price is making higher highs while the indicator is making lower highs: Bearish
POSITIVEDIVERGENCE
2-Price is making lower lows while the indicator is making higher lows: Bullish
HIDDEN NEGATIVEDIVERGENCE
3- Price is making lower highs while the indicator is making higher highs: Bearish
HIDDEN POSITIVEDIVERGENCE
4- Price is making higher lows while the indicator is making lower lows: Bullish

I’ve identified Hidden negative Divergence on 04th May 2012. It’s Nifty Futures weekly chart and since that day its DOWN.
I hope it's clear to understand. Please do let me know if you need any more information.

Regards.

 

[mehtaka]

Hello frnds,
I have the below mentioned AFL for the stop loss. Here , as said, it look backs for certain bars for the stoploss. Whereas i want is, it should start looking for stop loss once the trade is hit (long/short). Please help me to with the same.
Here's the code.

Trailing Stoploss - a% below nth highest high
************************************************** ***/
lookbackPeriod = Param("Lookback period", 10, 2, 30);
stoplossPercentage = Param("Stoploss Percentage", 5, 0.2, 10, 0.2);

Plot(HHV(H,lookbackPeriod) - HHV(H,lookbackPeriod) * (stoplossPercentage / 100), "Bullish SL", ParamColor( "Long", colorGrey40));
Plot(LLV(L,lookbackPeriod) + LLV(L,lookbackPeriod) * (stoplossPercentage / 100), "Bearish SL", ParamColor( "Short", colorGrey40));

 

[smananthanarayanan]

I am a new member to traderji and also new to amibroker trading system. Pls assist me in writing AFL, so that i can write for my own trading requirements. Pls help.