Method for converting openaq_latest_list to data frame.

Usage

# S3 method for class 'openaq_latest_list'
as.data.frame(x, row.names = NULL, optional = FALSE, ...)

x: A list of latest measurements as returned from list_location_latest or list_parameter_latest.
row.names: NULL or a character vector giving the row names for the data frame. Missing values are not allowed.
optional: logical. If TRUE, setting row names and converting column names (to syntactic names: see make.names) is optional. Note that all of R's base package as.data.frame() methods use optional only for column names treatment, basically with the meaning of data.frame(*, check.names = !optional). See also the make.names argument of the matrix method.
...: additional arguments to be passed to or from methods.

A data frame class of the latest results, with the following columns:

sensors_id: Numeric. The sensors identifier.
locations_id: Numeric. The locations identifier.
value: Numeric. The measurement value.
datetime_local: POSIXct. The datetime of the measurement value, in local time
datetime_utc: POSIXct. The datetime of the measurement value, in UTC time
latitude: Numeric. The latitude, geographic Y, value for the measurement.
longitude: Numeric. The longitude, geographic X, value for the measurement.

The data frame also includes a meta attribute from the original openaq_latest_list.

if (FALSE) { # interactive()
latest <- list_location_latest(2178, as_data_frame = FALSE)
as.data.frame(latest)
}