Diff results for same parameters

[kumaresh11]

If I run same strategy with same paratemers, same time frames at 2 diff times, it gives 2 diff results. results are 30-40% different and not small enough to ignore.

Has anyone seen this and any way to get consistent results.

[NinjaTrader_Bertrand]

kumaresh11, please open a chart for the market you wish to backtest on and ensure all needed data is present, then disconnect from your broker / datafeed and rerun the backtest on those settings - are you getting more consistent results then?

[kumaresh11]

Bertrand, After disconnect data feed, where does the chart get data from to backtest?

Anyway ran as you said, but results are worser than previous oens with same settings

[NinjaTrader_Bertrand]

Downloaded historical data would be stored in the NinjaTrader database, when you backtest in a disconnected state over the same settings the same dataset would be used, as otherwise it would prompt a reload if today's date for example was incluced in the backtest date range -

http://www.ninjatrader-support.com/HelpGuideV6/WhenDoesNinjaTraderLoadHistoricalData.html

Which fill algorithm are you using to run the backtest?