Method for converting openaq_sensors_list to data frame.

Method for converting openaq_sensors_list to data frame.

Usage

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

Arguments

x

A list of sensors as returned from get_sensor or list_location_sensors.

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.

Value

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

id

Numeric. The sensors identifier.

name

Character.

parameters_id

Numeric. .

datetime_first_utc

POSIXct. The datetime of the first measurement in UTC.

datetime_first_local

POSIXct. The datetime of the first measurement in local time.

datetime_last_utc

POSIXct. The datetime of the last measurement in UTC.

datetime_last_local

POSIXct. The datetime of the last measurement in local time.

min

Numeric. The minimum measurement value recorded by the sensor.

max

Numeric. The maximum measurement value recorded by the sensor.

avg

Numeric. The average measurement value recorded by the sensor.

expected_count

Numeric. The expected number of measurements for the sensor.

expected_interval

Factor. The expected measurement interval in HH:MM:SS format (e.g. "01:00:00").

observed_count

Numeric. The observed number of measurements for the sensor.

observed_interval

Factor. The observed measurement interval in HH:MM:SS format (e.g. "01:00:00").

percent_complete

Numeric. The percentage of expected measurements that were observed.

percent_coverage

Numeric. The percentage of time coverage for the sensor.

latest_value

Numeric. The most recent measurement value from the sensor.

latest_datetime

POSIXct. The datetime of the most recent measurement.

latest_latitude

Numeric. The latitude of the most recent measurement location.

latest_longitude

Numeric. The longitude of the most recent measurement location

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

Examples

if (FALSE) { # interactive()
sensor <- get_sensor(42, as_data_frame = FALSE)
as.data.frame(sensor)
}