readings | R Documentation |
Dataset containing relative humidity, barometric pressure, ambient temperature and other data obtained from a BME280 sensor connected to a Raspberry Pi.
data(readings)
A data frame with observations captured at regular intervals of time and ten variables.
The data frame includes the following variables:
reading_id
Unique character string generated by the BME280 sensor for a reading.
date_time
The date and time of a sensor reading.
month_of_year
The month of year derived from the date_time column.
day_of_week
The day of week derived from the date_time column.
hour_of_day
The hour of day derived from the date_time column.
interval
The time difference between a sensor reading and the prior sensor reading, expressed in minutes. Note that sensor readings were taken initially at five-minute intervals, then increased to one-minute intervals. Extremely high humidity levels occasionally caused the sensor to stop functioning, requiring a reboot of the Raspberry Pi. These breaks in readings are reflected in some non-standard intervals.
degrees_celcius
The ambient temperature expressed on the Celcius scale.
degrees_fahrenheit
The ambient temperature expressed on the Fahrenheit scale.
barometric_pressure
The atmospheric pressure expressed in hectopascal units (hPa).
relative_humidity
The concentration of water vapor in the air expressed as a percentage, indicating the present state of absolute humidity relative to a maximum humidity given the same temperature.
state
Categorical variable; identifies the state and location of a dehumidifier with three possible values: N indicates dehumidifier is not running, D (direct) indicates dehumidifier is running and present in the same room as the BME280 sensor and I (indirect) indicates the dehumidifier is running and present in a room adjacent to the BME280 sensor.
room
Categorical variable; identifies the location of the sensor with two possible values: UB indicates the sensor location is in the second floor bathroom and UH indicates the sensor is in the second floor hallway.
peak_rh
Boolean value; indicates whether a reading is considered
a peak relative humidity value. For details on how peak values are determined,
refer to the documentation for the find_peaks
function.
Donnie Minnick donnie.minnick@gmail.com
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