Description

This data set has been included from the R package FRegSigCom. The original .RData file is available at https://github.com/cran/FRegSigCom/blob/master/data/air.RData.

Data collected hourly in 355 days (days with missing values removed) in a significantly polluted area within an Italian city.

Usage

Format

A list of 7 matrices with 355 rows and 24 columns:

NO2

Hourly observation of concentration level of NO2 in 355 days

CO

Hourly observation of concentration level of CO in 355 days

NMHC

Hourly observation of concentration level of NMHC in 355 days

NOx

Hourly observation of concentration level of NOx in 355 days

C6H6

Hourly observation of concentration level of C6H6 in 355 days

temperature

Hourly observation of concentration level of temperature in 355 days

humidity

Hourly observation of concentration level of humidity in 355 days

Source

https://archive.ics.uci.edu/ml/datasets/Air+quality

References

De Vito, S., Massera E., Piga M., Martinotto L. and Di Francia G. (2008). On field calibration of an electronic nose for benzene estimation in an urban pollution monitoring scenario Sensors and Actuators B: Chemical, 129: 50-757. <doi:10.1016/j.snb.2007.09.060>

Xin Qi and Ruiyan Luo (2019). Nonlinear function on function additive model with multiple predictor curves. Statistica Sinica, 29:719-739. <doi:10.5705/ss.202017.0249>