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MT4 delete historical data?

  • #1
  • First Post: Jul 13, 2011 6:48am Jul 13, 2011 6:48am
This is making me rage right now. I am trying to delete some or all of my historical data for EUR/USD because it is slowing down the performance since it's 1m all the way to 1999.

If I go into the historical center and just highlight say half of the data, it deletes all. And it always seems to delete all the data with that delete button.

So it doesn't look like I can just delete the later 5 years or something.

Then how do I delete it all? I don't find it in the brokers metatrader folder. I can't find it anywhere. Does anyone know?
  • #2
  • Jul 13, 2011 8:18am Jul 13, 2011 8:18am
i think deleting them wont solve the problem, as MT4 will automatically gather historical data.

have u tried playing with Max bars in history & Max bars in chart?

if u haven't yet, go to Tools > Options > Charts tab
or simply CTRL+O, Charts tab
  • #3
  • Jul 13, 2011 8:27am Jul 13, 2011 8:27am
Quoting supremeChaos
i think deleting them wont solve the problem, as MT4 will automatically gather historical data.

have u tried playing with Max bars in history & Max bars in chart?

if u haven't yet, go to Tools > Options > Charts tab
or simply CTRL+O, Charts tab
Oh of course of course. I remember I did change the max bars in history to the most possible. But then I clicked on download which I think downloaded it all. What I assumed though was that if I deleted it it would only redownload the data that I scroll to. Not the max. But no it probably downloads it all, i don't know.

I will change the max bars back. Totally forgot about that, thanks.
  • #4
  • Jul 18, 2011 3:16am Jul 18, 2011 3:16am
Hello Guys. Can you give advise. In MT4 or another advanced platform is it possible to move up or down the closing price of current (last) bar? May be in back test mode?
When MACD lines are bullish crossed I need this to figure out a price level below which closing means crossover is avoided, above - not avoided.
  • #5
  • Jul 18, 2011 4:30am Jul 18, 2011 4:30am
In MT4 you can left click and hold and drag the scale (in the right hand price margin) up or down or you can right click on chart and go to chart properties, select common tab, click in scale fix and then enter the values that you want in the 2 boxes below.
If you think I'm mad, I must be mad
  • #6
  • Jul 18, 2011 7:39am Jul 18, 2011 7:39am
Quoting iffex
This is making me rage right now. I am trying to delete some or all of my historical data for EUR/USD because it is slowing down the performance since it's 1m all the way to 1999.

If I go into the historical center and just highlight say half of the data, it deletes all. And it always seems to delete all the data with that delete button.

So it doesn't look like I can just delete the later 5 years or something.

Then how do I delete it all? I don't find it in the brokers metatrader folder. I can't find it anywhere. Does anyone know?
I just go into the History folder and delete all files and subfolders found there. I do this quite often when backtesting with a single broker so that I'm testing with a single broker's real data and not with Alpari history data. It is my understanding that no history data is every downloaded from Alpari unless you specifically access it via Tools-->History Center.

Another good technique is to copy your MT4 folder (in program files) into several other folders to have multiple working copies of MT4. You can then keep different history attached to each copy. For example you can have an MT4-Backtest Alpari Data folder as well as a MT4-FXCM folder.

Hope this helps

Medran
  • #7
  • Nov 20, 2011 11:39pm Nov 20, 2011 11:39pm
does any one know if this can be done?

Oanda generates some MT4 Sunday bars that i dont want.

I delete them, which works, but when i shut-down and restart MT4, the deleted bars are reloaded.

Is there a way to stop the deleted bars from being reloaded at restart?

thanks
  • #8
  • Nov 22, 2011 10:51pm Nov 22, 2011 10:51pm
anyone?
  • #9
  • Nov 23, 2011 12:50am Nov 23, 2011 12:50am
Most brokers have sensible server times and don't have this problem.
  • #10
  • Nov 23, 2011 1:30am Nov 23, 2011 1:30am
Quoting PeterE
does any one know if this can be done?

Oanda generates some MT4 Sunday bars that i dont want.

I delete them, which works, but when i shut-down and restart MT4, the deleted bars are reloaded.

Is there a way to stop the deleted bars from being reloaded at restart?

thanks
Peter,

There's no easy way, at, least that I know of, to get rid of the annoying Sunday candles permanently.

A br0ker with a timezone GMT+2 should not generate Sunday candles. GoMarkets is an example. No doubt there are many others on this list.

To state what's possibly obvious, there's nothing to stop you from performing your analysis using one MT4 (that doesn't have the Sunday candles), and placing your trades with a different br0ker (with better spreads, fills, terms & conditions, etc).

David
  • #11
  • Last Post: Nov 23, 2011 6:08am Nov 23, 2011 6:08am
Thanks David,

Yes, Oanda like to feed as of 1700 GMT Sunday, 5hrs before other br0kers.
and have chosen to start their new day at 000 NY, which generates odd 4H bars.


Quoting hanover
Peter,

There's no easy way, at, least that I know of, to get rid of the annoying Sunday candles permanently.

A br0ker with a timezone GMT+2 should not generate Sunday candles. GoMarkets is an example. No doubt there are many others on this list.

To state what's possibly obvious, there's nothing to stop you from performing your analysis using one MT4 (that doesn't have the Sunday candles), and placing your trades with a different br0ker (with better spreads, fills, terms & conditions,...
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