After spending the better part of a week trying to get a combination of Alpaca's API and Python libraries (alpaca_trade_api, pandas and ta) to duplicate the numbers produced by Yahoo! Finance's commonly-used technical market indicators, I've come to the conclusion it's not feasible on that platform, probably due to relatively stale data from IEX.
Has anyone managed to verifiably* duplicate those indicators with a real time API?
If so, how?
*First, note I'm not merely asking about duplicating the numeric algorithms for technical market indicators. I mean the combination of algorithm and data source. By "verifiably" I mean that, given a stock symbol and a technical indicator, the graphs produced are very nearly the same if not identical.