I want to run several backtests on historical ES and EURUSD data.
I have two questions regarding this:
1) How to download data from my brokerage firm?
2) How to ensure this data against deletion / corruption?
How to download data from my brokerage firm?
I want ES and EURUSD minute data from Jan.1.2009 until yesterday.
I have a demo account at PFG.
· If I got it right I have to connect to PFG, open a 1-minute chart for ES and another for EURUSD, and go back in time until Jan.1.2009. Am I right?
· Do I also have to display lots of screens during this period (go through the whole period), or is it enough to go to the start and the end of this period?
· How much disk space does 1 year of minute data require?
I want to check whether I get different backtest results with PFG’s data and with another brokerage firm’s data, so I will connect to another firm and download their data for the same instruments and same time frames.
· How can I ensure that both data sets remains on my computer and I could switch among them back and forth as I wish?
How to maintain data integrity against deletion or corruption?
· How can I be sure that the data is unmodified and not any NinjaTrader script or functionality alter or delete it?
Thanks,
Arpad
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