View statlib-20050214 kidney (public)

2010-11-06 10:00 by mldata | Version 1 | Rating Empty StarEmpty StarEmpty StarEmpty StarEmpty StarEmpty Star
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Summary

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unknown (from Weka repository)
Dependencies
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arff slurped Weka
Attribute Types
Integer,Floating Point,String
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Original Data Format
arff
Name
kidney
Version mldata
0
Comment

From: McGilchrist and Aisbett, Biometrics 47, 461-66, 1991 Data on the recurrence times to infection, at the point of insertion of the catheter, for kidney patients using portable dialysis equipment. Catheters may be removed for reasons other than infection, in which case the observation is censored. Each patient has exactly 2 observations.

The data set has been used by several authors to illustrate random effects ("frailty") models for survival data. However, any non-zero estimate of the random effect is almost entirely due to one outlier, subject 21.

Variables: patient, time, status, age, sex (1=male, 2=female), disease type (0=Glomerulo Nephritis, 1=Acute Nephritis, 2=Polycystic Kidney Disease, 3=Other) author's estimate of the frailty

Information about the dataset CLASSTYPE: numeric CLASSINDEX: last

Names
patient,time,status,age,sex,disease_type,frailty,
Types
  1. numeric
  2. numeric
  3. nominal:0,1
  4. numeric
  5. nominal:female,male
  6. nominal:Acute_Nephritis,Glomerulo_Nephritis,Other,Polycystic_Kidney_Disease
  7. numeric
Data (first 10 data points)
    pati... time status age sex dise... frai...
    1 8 1 28 male Other 2.3
    1 16 1 28 male Other 2.3
    2 23 1 48 female Glom... 1.9
    2 13 0 48 female Glom... 1.9
    3 22 1 32 male Other 1.2
    3 28 1 32 male Other 1.2
    4 447 1 31 female Other 0.5
    4 318 1 32 female Other 0.5
    5 30 1 10 male Other 1.5
    5 12 1 10 male Other 1.5
    ... ... ... ... ... ... ...
Description

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

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    Data Source
    http://lib.stat.cmu.edu/datasets/
    Measurement Details
    Usage Scenario
    revision 1
    by mldata on 2010-11-06 10:00

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