pq_freq
convert a daily OHLC dataframe into a specified frequency.
pq_freq(dt, freq = "monthly", date_type = "eop")
a list/dataframe of time series dataset.
the frequency that the input daily data will converted to. It supports weekly, monthly, quarterly and yearly.
the available date type are eop (end of period) and bop (bebinning of period), defaults to the eop.