getting more and more fun in building my first Powerlanguage scripts.
Now getting to the point where I wish to get some longer historical backtest data for some instruments.
Coming to my question:
Could anyone advise me on where to get the long historical data for precise long term backtesting?
Like M6E on 15 minute bar from the beginning of that product, really like to see if my strategy is roboust and can withstand the test of ( previous ) time.