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More bars on chart during backtest?

  • #1
  • First Post: Mar 15, 2010 9:57am Mar 15, 2010 9:57am
When backtesting, it seems the number of bars on the backtested chart is limited to 1,000.

Is there any way to increase that to ~10,000?
  • #2
  • Mar 15, 2010 3:29pm Mar 15, 2010 3:29pm
Check your setting of

menu-->tools--> options ---> Charts --- > max bars in chart


As I recall the backtest chart (in strategy tester) will always start with ~1000 bars history when you kick it off but it will grow as the test progresses. (As long as your max bars option allows it). If you need more then start the test way before the date/time you really want to start and use 'skip to' to get to where you really want to start.
  • #3
  • Mar 16, 2010 6:50am Mar 16, 2010 6:50am
I found the easier way to increase the numbers of bars is to highlight the numbers and insert all 9s. It will then default to that stupid number that MT4 likes so much 214........... And then i just hit the home key repeatedly to download as much data as possible.

The max bars also should be set to 9s so it defaults to the MT4 number.

Also, you can always move the hst files from another demo if they are the same broker time. Saves download time.
  • #4
  • Mar 16, 2010 7:40am Mar 16, 2010 7:40am
Neither seems to work...

thanks anyway guys.
  • #5
  • Edited 8:53am Mar 16, 2010 8:40am | Edited 8:53am
Quoting flyer415
that stupid number that MT4 likes so much 214...........
LOL

That "stupid number that MT4 likes so much" is the biggest possible integer number that can be written with only 32 bits: All bits are set to 1.

It is 2³²-1 which is exactly 2,147,483,647 in decimal notation

or FFFFFFFF in hexadeciamal or 11111111111111111111111111111111 in binary.
  • #6
  • Last Post: Mar 16, 2010 8:44am Mar 16, 2010 8:44am
Quoting Ronald Raygun
Neither seems to work...

thanks anyway guys.
I usually use
Inserted Code
extern int min_bars = big_number_that_i_need;

int start(){
   if (Bars < min_bars){
      return(0); // keep waiting
   }

   // here the rest of the start() function

}
so it will just do nothing and skip as fast as possible until it reached min_bars.
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