Data
beijing-pm2.5

beijing-pm2.5

active ARFF CC-BY Visibility: public Uploaded 19-05-2021 by Meilina Reksoprodjo
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This hourly data set contains the PM2.5 data of US Embassy in Beijing. Meanwhile, meteorological data from Beijing Capital International Airport are also included.

13 features

Nonumeric43824 unique values
0 missing
yearnumeric5 unique values
0 missing
monthnumeric12 unique values
0 missing
daynumeric31 unique values
0 missing
hournumeric24 unique values
0 missing
pm2.5numeric581 unique values
2067 missing
DEWPnumeric69 unique values
0 missing
TEMPnumeric64 unique values
0 missing
PRESnumeric60 unique values
0 missing
cbwdstring4 unique values
0 missing
Iwsnumeric2788 unique values
0 missing
Isnumeric28 unique values
0 missing
Irnumeric37 unique values
0 missing
Show all 13 features

19 properties

NumberOfInstances
43824
Number of instances (rows) of the dataset.
NumberOfFeatures
13
Number of attributes (columns) of the dataset.
NumberOfClasses
Number of distinct values of the target attribute (if it is nominal).
NumberOfMissingValues
2067
Number of missing values in the dataset.
NumberOfInstancesWithMissingValues
2067
Number of instances with at least one value missing.
NumberOfNumericFeatures
12
Number of numeric attributes.
NumberOfSymbolicFeatures
0
Number of nominal attributes.
Dimensionality
0
Number of attributes divided by the number of instances.
PercentageOfNumericFeatures
92.31
Percentage of numeric attributes.
MajorityClassPercentage
Percentage of instances belonging to the most frequent class.
PercentageOfSymbolicFeatures
0
Percentage of nominal attributes.
MajorityClassSize
Number of instances belonging to the most frequent class.
MinorityClassPercentage
Percentage of instances belonging to the least frequent class.
MinorityClassSize
Number of instances belonging to the least frequent class.
NumberOfBinaryFeatures
0
Number of binary attributes.
PercentageOfBinaryFeatures
0
Percentage of binary attributes.
PercentageOfInstancesWithMissingValues
4.72
Percentage of instances having missing values.
AutoCorrelation
Average class difference between consecutive instances.
PercentageOfMissingValues
0.36
Percentage of missing values.
Show all 19 properties

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