Hi,
I'm trying to retrieve time series for normal vol for swaptions (as a default eikon gives lognormal vol); using excel api, the following retrieves the desired data, but how to do this in the python api? thanks
=RHistory("USD3MX10YATM=R","NORMALIZED VOLATILITY.Timestamp;NORMALIZED VOLATILITY.Value","INTERVAL:1D",,"TSREPEAT:NO CH:Fd",K9)