I am looking to extract fundametnal data for a ferw companies. I am using the following code:
start_date = '2015-01-01'
end_date = '2019-01-01'
field = ['TR.TotalRevenue','TR.TotalRevenue.date','TR.TotalRevenue.periodenddate','TR.BSOriginalAnnouncementDate']
ric = ['AAPL.O','MSFT.O','BA']
params = parameters={'SDate': start_date, 'EDate': end_date,'Frq': 'FQ','Period': 'FQ0'}
data,err = ek.get_data(ric,field,params)
I currently use the paramtenrs Frq and Per but I am confused on the reason why I need both to get the results I am looking for, in that case quarterly data. Could you provide me with details explanation of the role of each parameters and whether the query is correct?