Data
Beijing-Multi-Site-Air-Quality

Beijing-Multi-Site-Air-Quality

active ARFF Publicly available Visibility: public Uploaded 25-05-2021 by Hage Tuin
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This data set includes hourly air pollutants data from 12nationally-controlled air-quality monitoring sites.

18 features

Nonumeric35064 unique values
0 missing
yearnumeric5 unique values
0 missing
monthnumeric12 unique values
0 missing
daynumeric31 unique values
0 missing
hournumeric24 unique values
0 missing
PM2.5numeric888 unique values
8739 missing
PM10numeric1084 unique values
6449 missing
SO2numeric691 unique values
9021 missing
NO2numeric1212 unique values
12116 missing
COnumeric132 unique values
20701 missing
O3numeric1598 unique values
13277 missing
TEMPnumeric2034 unique values
398 missing
PRESnumeric726 unique values
393 missing
DEWPnumeric645 unique values
403 missing
RAINnumeric253 unique values
390 missing
wdstring16 unique values
1822 missing
WSPMnumeric117 unique values
318 missing
stationstring12 unique values
0 missing

19 properties

420768
Number of instances (rows) of the dataset.
18
Number of attributes (columns) of the dataset.
Number of distinct values of the target attribute (if it is nominal).
74027
Number of missing values in the dataset.
38600
Number of instances with at least one value missing.
16
Number of numeric attributes.
0
Number of nominal attributes.
9.17
Percentage of instances having missing values.
Average class difference between consecutive instances.
0.98
Percentage of missing values.
0
Number of attributes divided by the number of instances.
88.89
Percentage of numeric attributes.
Percentage of instances belonging to the most frequent class.
0
Percentage of nominal attributes.
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.
0
Percentage of binary attributes.

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