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Error Thrown By Older RSI Algo...

Hi all,

I've been meaning to play around with an RSI algo attempt posted a while back:

I had to make a few changes (see source) as context/data usage became different as the platform was upgraded...but I'm still getting an error and I'm a little confused why...

Any ideas?


Clone Algorithm
Backtest from to with initial capital
Total Returns
Information Ratio
Benchmark Returns
Max Drawdown
Returns 1 Month 3 Month 6 Month 12 Month
Alpha 1 Month 3 Month 6 Month 12 Month
Beta 1 Month 3 Month 6 Month 12 Month
Sharpe 1 Month 3 Month 6 Month 12 Month
Sortino 1 Month 3 Month 6 Month 12 Month
Information Ratio 1 Month 3 Month 6 Month 12 Month
Volatility 1 Month 3 Month 6 Month 12 Month
Max Drawdown 1 Month 3 Month 6 Month 12 Month
# Backtest ID: 516b895082297b069452caec
There was a runtime error.
3 responses

Hello Alex,

I'n sure there are better solutions but you could try  




The problem is that it's having problems changing your integer to a string for logging. It works if you do it explicitly. Change line 76 from




For more readable logs, I'd combine lines 75 and 76 like this:
log.debug('RSI is: ' + str(rsi))


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Ah simple enough, thanks.

I didn't realize it was something that simple causing the problem... when run step by step in isolation, this line was giving me problem (basically never ending)

        returns = [(preceding_prices[i-1]-preceding_prices[i]) for i in range(1,len(preceding_prices))]

but it seems to be fine now...