Filters the loaded data frame by sites and time
Data frame loaded by a MiSa function (see details)
Names of considered sites, written in the site column of a MiSa Dataframe
POSIX-Value with a start time of the observeration interval
POSIX-Value with an end time of the observeration interval
A filtered data frame with the same columns as the input data frame
The name of the site column must be "site", the name of the timestamp column
must be "posixDateTime".
The best way is to load the oxygen data with one of the following
functions: read_misa_oneSite()
,read_misa_multipleSites()
or
read_misa_files()
.