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.
library(AirSensor) example_pat %>% pat_filterDate(startdate = 20180808, enddate = 20180815) %>% pat_multiPlot()#> Warning: Removed 1975 rows containing missing values (geom_point).#> Warning: Removed 1975 rows containing missing values (geom_point).#> Warning: Removed 1975 rows containing missing values (geom_point).#> Warning: Removed 1975 rows containing missing values (geom_point).#> Warning: conversion failure on 'μg / m³' in 'mbcsToSbcs': dot substituted for <ce>#> Warning: conversion failure on 'μg / m³' in 'mbcsToSbcs': dot substituted for <bc>#> Warning: conversion failure on 'μg / m³' in 'mbcsToSbcs': dot substituted for <ce>#> Warning: conversion failure on 'μg / m³' in 'mbcsToSbcs': dot substituted for <bc>#> Warning: conversion failure on 'μg / m³' in 'mbcsToSbcs': dot substituted for <ce>#> Warning: conversion failure on 'μg / m³' in 'mbcsToSbcs': dot substituted for <bc>#> Warning: conversion failure on 'μg / m³' in 'mbcsToSbcs': dot substituted for <ce>#> Warning: 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