Data
no2

no2

active ARFF Publicly available Visibility: public Uploaded 29-09-2014 by Joaquin Vanschoren
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  • OpenML-Reg19 study_130 study_239
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Author: Magne Aldrin (magne.aldrin@nr.no) Source: [StatLib](http://lib.stat.cmu.edu/datasets/) - 2004 Please cite: The data are a subsample of 500 observations from a data set that originate in a study where air pollution at a road is related to traffic volume and meteorological variables, collected by the Norwegian Public Roads Administration. The response variable (column 1) consist of hourly values of the logarithm of the concentration of NO2 (particles), measured at Alnabru in Oslo, Norway, between October 2001 and August 2003. The predictor variables (columns 2 to 8) are the logarithm of the number of cars per hour, temperature $$2$$ meter above ground (degree C), wind speed (meters/second), the temperature difference between $$25$$ and $$2$$ meters above ground (degree C), wind direction (degrees between 0 and 360), hour of day and day number from October 1. 2001.

8 features

no2_concentration (target)numeric385 unique values
0 missing
cars_per_hournumeric464 unique values
0 missing
temperature_at_2mnumeric223 unique values
0 missing
wind_speednumeric78 unique values
0 missing
temperature_diff_2m_25mnumeric61 unique values
0 missing
wind_directionnumeric373 unique values
0 missing
hour_of_daynumeric24 unique values
0 missing
daynumeric287 unique values
0 missing

19 properties

500
Number of instances (rows) of the dataset.
8
Number of attributes (columns) of the dataset.
0
Number of distinct values of the target attribute (if it is nominal).
0
Number of missing values in the dataset.
0
Number of instances with at least one value missing.
8
Number of numeric attributes.
0
Number of nominal attributes.
0
Percentage of binary attributes.
0
Percentage of instances having missing values.
0
Percentage of missing values.
0.1
Average class difference between consecutive instances.
100
Percentage of numeric attributes.
0.02
Number of attributes divided by the number of instances.
0
Percentage of nominal attributes.
Percentage of instances belonging to the most frequent class.
Number of instances belonging to the most frequent class.
Percentage of instances belonging to the least frequent class.
Number of instances belonging to the least frequent class.
0
Number of binary attributes.

14 tasks

2 runs - estimation_procedure: 10-fold Crossvalidation - evaluation_measure: mean_absolute_error - target_feature: no2_concentration
0 runs - estimation_procedure: 10 times 10-fold Crossvalidation - evaluation_measure: mean_absolute_error - target_feature: no2_concentration
0 runs - estimation_procedure: 33% Holdout set - target_feature: no2_concentration
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
0 runs - estimation_procedure: 50 times Clustering
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