Am I using filters correctly to create my universe? Because my backtest is saying I didn't use the the Quantopian Tradable Universe but I did put QTradableStocksUS() in there.
num_analysts = qf1_eps_cons.num_est.latest
num_analyst_filter = num_analysts >= 10
f = factor_being_tested
universe = QTradableStocksUS() & num_analyst_filter & f.notnull() & f.notnan() 
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