Using resample_apply for indicators which require more than one column

[ahfattahi]

Hello,

Assume we have the hourly dataset of EURUSD.csv in the test section. I want to calculate the Stochastic Oscillator indicator in 4-hour steps. This indicator requires close, high, and low prices for each time step. I know I need to use reample_apply, but I face errors.
How should I use the resample_apply function if the indicator requires more than one column of data?

[kernc]

If you need to resample more than one column, you can pass in the whole dataframe instead of individual series:

        def stoch_wrapper(df):
            import talib as ta
            return ta.STOCH(df.High, df.Low, df.Close)

        resample_apply('4H', stoch_wrapper, self.data.df)

[ahfattahi]

Thank you so much, your solution worked perfectly.