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Simple Price Action Code

  • #1
  • First Post: Mar 3, 2010 4:03pm Mar 3, 2010 4:03pm
I have been playing around with MQL for a little bit and want to know the best way of comparing bars.

I currently have a loop that runs through the last 100 bars. Each run goes through several if then statements.

For example:

Inserted Code
CurrentLow = Low[i]
PreviousLow = Low[i+1]

If (CurrentLow > Previous Low) Then Bullish 
Else
Bearish

This is the simplest method of comparing two bars. However is this the best? And how would I compare a range?

Also, how would I go about identifying the midpoint of a bar...

Inserted Code
Midpoint = ( (High[i] - Low[i])/2 ) + Low[i];
Or
Midpoint = ( (High[i] - Low[i])*0.50 ) + Low[i]

These must seem like such basic questions but cannot seem to find anything that explains this... what is the most helpful resource to answer these. I have searched google and the forum but am not sure most of the time what I am looking for!
  • #2
  • Mar 3, 2010 4:57pm Mar 3, 2010 4:57pm
MQL resources:

docs.mql4.com
book.mql4.com
www.metatrader.info/node/34

So far, your code looks fine.

Just remember to end each line with a semicolon (

Although you may want to consider what action to do if say two variables are equal.

Example:

Inserted Code
double CurrentLow = Low[i];
double PreviousLow = Low[i+1];
string Status = "None";

if(CurrentLow > PreviousLow) Status = "Bullish";
if(CurrentLow < PreviousLow) Status = "Bearish";
if(CurrentLow == PreviousLow) Status = "Neither";
  • #3
  • Mar 3, 2010 5:00pm Mar 3, 2010 5:00pm
Aren't both your midpoint examples basically the same? Take a look at the resources RR recommends and spend some time looking at the code of EA's and indicators you already have. Also the help file is pretty useful so try to use it often.

Lux
MT4 EA, Indicator and Alert Coder Since 2006
  • #4
  • Last Post: Mar 4, 2010 9:01am Mar 4, 2010 9:01am
Thanks for the links!

I have just read through this tutorial about counted bars and it is so much clearer now.
http://www.metatrader.info/node/57

I did attempt reading through the Metatrader help file and website but got totally overwhelmed. The link below explains everything nicely (for dummies).

luxinterior - Both do the same however was just asking for the most appropriate. I was wondering if there was any best practice!
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