Summary

(No information yet)

License

unknown (from Weka repository)

Dependencies

Tags

arff slurped Weka

Attribute Types

Integer,Floating Point

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# Instances: 500 / # Attributes: 8
HDF5 (37.2 KB) XML CSV ARFF LibSVM Matlab Octave

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Original Data Format

arff

Name

no2

Version mldata

0

Comment

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. Submitted by Magne Aldrin (magne.aldrin@nr.no). 28/Jul/04

Note: description of data is from this website http://lib.stat.cmu.edu/datasets/

Information about the dataset CLASSTYPE: numeric CLASSINDEX: none specific

Names

no2_concentration,cars_per_hour,temperature_at_2m,wind_speed,temperature_diff_2m_25m,wind_direction,hour_of_day,day,

Types

1. numeric
2. numeric
3. numeric
4. numeric
5. numeric
6. numeric
7. numeric
8. numeric

Data (first 10 data points)

no2_...	cars...	temp...	wind...	temp...	wind...	hour...	day
3.71...	7.6912	9.2	4.8	-0.1	74.0	20.0	600.0
3.10...	7.69...	6.4	3.5	-0.3	56.0	14.0	196.0
3.31...	4.81...	-3.7	0.9	-0.1	281.0	4.0	513.0
4.38...	6.95...	-7.2	1.7	1.2	74.0	23.0	143.0
4.3464	7.51...	-1.3	2.6	-0.1	65.0	11.0	115.0
4.16...	7.67...	2.6	1.6	0.3	224.0	19.0	527.0
4.01...	5.52...	-7.9	1.6	0.3	211.0	5.0	502.0
2.15...	4.68...	-4.1	3.8	-0.1	63.0	4.0	453.0
3.157	7.15...	-12.7	5.2	-0.1	64.0	12.0	462.0
2.37...	4.74...	-1.6	3.0	0.4	58.0	3.0	554.0
...	...	...	...	...	...	...	...

Description

A gzip'ed tar containing StatLib datasets (statlib-20050214.tar.gz, 12,785,582 Bytes)

URLs

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Publications

Data Source

http://lib.stat.cmu.edu/datasets/

Measurement Details

Usage Scenario

revision 1

by mldata on 2011-09-14 14:48

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