View source: R/pat_filterDate.R
pat_filterDate | R Documentation |
Subsets a PurpleAir Timeseries object by date. This function
always filters to day-boundaries. For sub-day filtering, use
pat_filterDatetime()
.
Dates can be anything that is understood by lubridate::ymd()
including either of the following recommended formats:
"YYYYmmdd"
"YYYY-mm-dd"
pat_filterDate(
pat = NULL,
startdate = NULL,
enddate = NULL,
days = NULL,
weeks = NULL,
timezone = NULL
)
pat |
PurpleAir Timeseries pat object. |
startdate |
Desired start datetime (ISO 8601). |
enddate |
Desired end datetime (ISO 8601). |
days |
Number of days to include in the filterDate interval. |
weeks |
Number of weeks to include in the filterDate interval. |
timezone |
Olson timezone used to interpret dates. |
A subset of the given pat object.
The returned data will run from the beginning of startdate
until
the beginning of enddate
– i.e. no values associated
with enddate
will be returned. The exception being when
enddate
is less than 24 hours after startdate
. In that case, a
single day is returned.
pat_filter
pat_filterDatetime
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