[shaniParticipant December 24, 2014 at 10:08 am Post count: 6]

in reply to: Modeling quality changes based on timeframe #20333

I’ve tried to uninstall Tickstory and MT4, deleted the tick data folder and started from scratch…
But I still get almost double bars count for the same test period and time frame
What should I do to?

[shaniParticipant December 22, 2014 at 4:54 pm Post count: 6]

in reply to: Modeling quality changes based on timeframe #20332

Hi,

I have another issue when exporting data to MT4:

In the past, I’ve exported tick data from 2012.01.01 22:00 – 2014.11.05 23:5 and ran all my back testing on these dates: 2012.08.07 – 2014.08.07

Now I wanted to expend the testing period, so I’ve exported tick data from the last 5 years (2009.12.22 00:00 – 2014.12.21 23:59).
Then I ran the same back testing test on the same dates: 2012.08.07 – 2014.08.07 as before and got completely different results (all the statistics are different :profit, number of trades and so on).

On the original report this was the info I got:
Period: 4 Hours (H4) 2012.01.01 22:00 – 2014.11.05 23:59 (2012.08.07 – 2014.08.07)
Bars in test:4595 Ticks modelled:55815300 Modelling quality:99.90%

Now I get this info:
Period 4 Hours (H4) 2009.12.22 00:00 – 2014.12.21 23:59 (2012.08.07 – 2014.08.07)
Bars in test 8073 Ticks modelled 76695831 Modelling quality 99.90%

Why is the number of bars different for the same testing period and time frame?
Why do I get different statistics and what should I do?

[shaniParticipant November 6, 2014 at 11:24 am Post count: 6]

in reply to: Modeling quality changes based on timeframe #20328

I exported to MT4 again and got 99.9% in all time frames for a week or so.
Yesterday I ran a backtest on 4h EUR/USD and got modeling quality N/A again.
I’ve checked the files under MetaQuotesTerminalC4F6B9F5EDF8FD79C0DA897541DC313Etesterhistory
and the file EURUSD240_0.fxt is a lot smaller than the other files and the filed “date modified” shows yesterday’s date even though I haven’t exported data or changed data files. All other files in this folder shows under “date modified” the date I last exported data to MT4 (24/10/2014).

What can cause this change in the file?

[shaniParticipant September 16, 2014 at 10:15 am Post count: 6]

in reply to: Reset exported data #20324

Thank you for you reply.

A few more questions:
1. If I exported a certain time period to MT4 and then I need a different time period I just do an export again and the old MT4 files will be overwritten, right?
2. If the new export doesn’t contain the old dates than this data will no longer be available for MT4?
3. If I exported the data from the past 2 years until last month and I want to add the data from last month I need to do an export again for the entire date range, correct?
4. What is the “filter duplicate ticks” option for? why would I have duplicate ticks? Will the becktesting give me different results if this option was selected on export or not?

Thanks again

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