Data
rossi

rossi

in_preparation ARFF Publicly available Visibility: public Uploaded 09-01-2019 by TouEzqPFniGDbuRXAEXHA
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Author: [Peter Henry Rossi](https://en.wikipedia.org/wiki/Peter_H._Rossi) et al. Source: [lifelines.datasets](https://github.com/CamDavidsonPilon/lifelines/blob/master/lifelines/datasets/rossi.csv) - 1980 Please cite: Rossi, P.H., Berk, R.A., and Lenihan, K.J. (1980). Money, Work, and Crime: Some Experimental Results. New York: Academic. The data pertain to 432 convicts who were released from Maryland state prisons in the 1970s and who were followed up for one year after release. Half the released convicts were assigned at random to an experimental treatment in which they were given financial aid; half did not receive aid. week - week of first arrest after release or censoring arrest - 1 if arrested, 0 if not arrested. fin - received financial aid? age - age in years at time of release. race - is black wexp - full-time work experience before incarceration: no or yes. mar - marital status at time of release: married or not married. paro - released on parole? prio - number of convictions prior to current incarceration. educ - level of education: 2 = 6th grade or less; 3 = 7th to 9th grade; 4 = 10th to 11th grade; 5 = 12th grade; 6 = some college.

9 features

weeknumeric49 unique values
0 missing
arrestnumeric2 unique values
0 missing
finnumeric2 unique values
0 missing
agenumeric28 unique values
0 missing
racenumeric2 unique values
0 missing
wexpnumeric2 unique values
0 missing
marnumeric2 unique values
0 missing
paronumeric2 unique values
0 missing
prionumeric17 unique values
0 missing

62 properties

432
Number of instances (rows) of the dataset.
9
Number of attributes (columns) of the dataset.
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.
9
Number of numeric attributes.
0
Number of nominal attributes.
Entropy of the target attribute values.
An estimate of the amount of irrelevant information in the attributes regarding the class. Equals (MeanAttributeEntropy - MeanMutualInformation) divided by MeanMutualInformation.
Second quartile (Median) of entropy among attributes.
0.02
Number of attributes divided by the number of instances.
Average number of distinct values among the attributes of the nominal type.
1.37
Second quartile (Median) of kurtosis among attributes of the numeric type.
Number of attributes needed to optimally describe the class (under the assumption of independence among attributes). Equals ClassEntropy divided by MeanMutualInformation.
0.2
Mean skewness among attributes of the numeric type.
0.62
Second quartile (Median) of means among attributes of the numeric type.
Percentage of instances belonging to the most frequent class.
2.69
Mean standard deviation of attributes of the numeric type.
Second quartile (Median) of mutual information between the nominal attributes and the target attribute.
Number of instances belonging to the most frequent class.
Minimal entropy among attributes.
0
Second quartile (Median) of skewness among attributes of the numeric type.
Maximum entropy among attributes.
-2.01
Minimum kurtosis among attributes of the numeric type.
0
Percentage of binary attributes.
0.5
Second quartile (Median) of standard deviation of attributes of the numeric type.
5.33
Maximum kurtosis among attributes of the numeric type.
0.12
Minimum of means among attributes of the numeric type.
0
Percentage of instances having missing values.
Third quartile of entropy among attributes.
45.85
Maximum of means among attributes of the numeric type.
Minimal mutual information between the nominal attributes and the target attribute.
0
Percentage of missing values.
3.34
Third quartile of kurtosis among attributes of the numeric type.
Maximum mutual information between the nominal attributes and the target attribute.
The minimal number of distinct values among attributes of the nominal type.
100
Percentage of numeric attributes.
13.79
Third quartile of means among attributes of the numeric type.
The maximum number of distinct values among attributes of the nominal type.
-2.31
Minimum skewness among attributes of the numeric type.
0
Percentage of nominal attributes.
Third quartile of mutual information between the nominal attributes and the target attribute.
2.31
Maximum skewness among attributes of the numeric type.
0.33
Minimum standard deviation of attributes of the numeric type.
First quartile of entropy among attributes.
1.74
Third quartile of skewness among attributes of the numeric type.
12.66
Maximum standard deviation of attributes of the numeric type.
Percentage of instances belonging to the least frequent class.
-1.85
First quartile of kurtosis among attributes of the numeric type.
4.5
Third quartile of standard deviation of attributes of the numeric type.
Average entropy of the attributes.
Number of instances belonging to the least frequent class.
0.38
First quartile of means among attributes of the numeric type.
Standard deviation of the number of distinct values among attributes of the nominal type.
1.06
Mean kurtosis among attributes of the numeric type.
0
Number of binary attributes.
First quartile of mutual information between the nominal attributes and the target attribute.
8.49
Mean of means among attributes of the numeric type.
-1.24
First quartile of skewness among attributes of the numeric type.
Average class difference between consecutive instances.
Average mutual information between the nominal attributes and the target attribute.
0.38
First quartile of standard deviation of attributes of the numeric type.

11 tasks

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: Leave one out - evaluation_measure: c_index
0 runs - estimation_procedure: 10-fold Crossvalidation - evaluation_measure: c_index
Define a new task