For the Baaijens data, the date and location are the same for each sra. If the user passes by = "sra", the output should retain the date and location columns. This makes it easy for plotting.
To be clear, the columns are constant withinby groups, not for the entire data set.
For the
Baaijens
data, thedate
andlocation
are the same for eachsra
. If the user passesby = "sra"
, the output should retain the date and location columns. This makes it easy for plotting.To be clear, the columns are constant within
by
groups, not for the entire data set.