
 Files in the 'proben1/diabetes' directory:
=============================================


This dataset is from the UCI machine learning database:
"diabetes"


[Remark: some of the generated files may not exist in order to save disk space]


pima-indians-diabetes.names
  Original documentation for the dataset

pima-indians-diabetes.data
  Original data file


diabetes.raw
  Symbolic link to pima-indians-diabetes.data  

diabetes.cod
  diabetes.raw encoded (using raw2cod)


header
  Header lines used in .dt files

diabetes?.dt
  different permutations of the lines of cod file plus the header lines

raw2cod
 
Perl script for format conversions:
  takes diabetes.raw as input and produces diabetes.cod as output according
  to the rules given in 
section 'design' below.

Makefile
  Makefile to call scripts and programs to create .dt files


 
 Encoding:
===========

Although there are no missing values 
in this dataset according to its
documentation, there are several senseless 0 values. These most probably
indicate missing data. Nevertheless, we handle this data as 
if it was real,
thereby introducing some errors (or noise, if you want) into the dataset.

Attribute information: (no missing values)

0. Number of times pregnant
 1  continuous  0...17 --> 0...1  (34 records have x > 10)
1. Plasma glucose concentration a 2 hours in an oral glucose tolerance test

 1  continuous  0...199 --> 0...1 (5 records with value 0 are probably
    erroneous or indicate missing data; we just don't care)
2. Diastolic blood pressure (mm Hg)

1  continuous  0...122 --> 0...1  (35 records with value 0, next higher is 24)

3. Triceps skin fold thickness (mm)
 1  continuous  0...99 --> 0...1  (227 records with value 0, next higher is 7)

4. 2-Hour serum insulin (mu U/ml)
 1  continuous  0...846 --> 0...1  (347 records with value 0, next higher is 14)
5. 
Body mass index (weight in kg/(height in m)^2)
 
1  continuous  0...67.1 --> 0...1 (11 records with value 0, next higher is 18)
6. Diabetes pedigree function
 1  continuous  0.078...2.42 --> 0...1

7. Age (years)
 1  continuous  21...81 --> 0...1
------
 8 inputs

8. Class variable (0 or 1)
 2  1-of-2
-------
 2 outputs



Class distribution:
   0     65%    500  no diabetes
   1     35%    268  diabetes
total           768

