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         "1. Title: Iris Plants Database

2. Sources:
     (a) Creator: R.A. Fisher
     (b) Donor: Michael Marshall (MARSHALL%PLU@io.arc.nasa.gov)
     (c) Date: July, 1988

3. Past Usage:
   - Publications: too many to mention!!!  Here are a few.
   1. Fisher,R.A. \"The use of multiple measurements in taxonomic problems\"
      Annual Eugenics, 7, Part II, 179-188 (1936); also in \"Contributions
      to Mathematical Statistics\" (John Wiley, NY, 1950).
   2. Duda,R.O., &amp; Hart,P.E. (1973) Pattern Classification and Scene Analysis.
      (Q327.D83) John Wiley &amp; Sons.  ISBN 0-471-22361-1.  See page 218.
   3. Dasarathy, B.V. (1980) \"Nosing Around the Neighborhood: A New System
      Structure and Classification Rule for Recognition in Partially Exposed
      Environments\".  IEEE Transactions on Pattern Analysis and Machine
      Intelligence, Vol. PAMI-2, No. 1, 67-71.
      -- Results:
         -- very low misclassification rates (0% for the setosa class)
   4. Gates, G.W. (1972) \"The Reduced Nearest Neighbor Rule\".  IEEE 
      Transactions on Information Theory, May 1972, 431-433.
      -- Results:
         -- very low misclassification rates again
   5. See also: 1988 MLC Proceedings, 54-64.  Cheeseman et al&apos;s AUTOCLASS II
      conceptual clustering system finds 3 classes in the data.

4. Relevant Information:
   --- This is perhaps the best known database to be found in the pattern
       recognition literature.  Fisher&apos;s paper is a classic in the field
       and is referenced frequently to this day.  (See Duda &amp; Hart, for
       example.)  The data set contains 3 classes of 50 instances each,
       where each class refers to a type of iris plant.  One class is
       linearly separable from the other 2; the latter are NOT linearly
       separable from each other.
   --- Predicted attribute: class of iris plant.
   --- This is an exceedingly simple domain.

5. Number of Instances: 150 (50 in each of three classes)

6. Number of Attributes: 4 numeric, predictive attributes and the class

7. Attribute Information:
   1. sepal length in cm
   2. sepal width in cm
   3. petal length in cm
   4. petal width in cm
   5. class: 
      -- Iris Setosa
      -- Iris Versicolour
      -- Iris Virginica

8. Missing Attribute Values: None

Summary Statistics:
 	           Min  Max   Mean    SD   Class Correlation
   sepal length: 4.3  7.9   5.84  0.83    0.7826   
    sepal width: 2.0  4.4   3.05  0.43   -0.4194
   petal length: 1.0  6.9   3.76  1.76    0.9490  (high!)
    petal width: 0.1  2.5   1.20  0.76    0.9565  (high!)

9. Class Distribution: 33.3% for each of 3 classes."
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            5.1
            4.9
            4.7
            4.6
            5
            5.4
            4.6
            5
            4.4
            4.9
            5.4
            4.8
            4.8
            4.3
            5.8
            5.7
            5.4
            5.1
            5.7
            5.1
            5.4
            5.1
            4.6
            5.1
            4.8
            5
            5
            5.2
            5.2
            4.7
            4.8
            5.4
            5.2
            5.5
            4.9
            5
            5.5
            4.9
            4.4
            5.1
            5
            4.5
            4.4
            5
            5.1
            4.8
            5.1
            4.6
            5.3
            5
            7
            6.4
            6.9
            5.5
            6.5
            5.7
            6.3
            4.9
            6.6
            5.2
            5
            5.9
            6
            6.1
            5.6
            6.7
            5.6
            5.8
            6.2
            5.6
            5.9
            6.1
            6.3
            6.1
            6.4
            6.6
            6.8
            6.7
            6
            5.7
            5.5
            5.5
            5.8
            6
            5.4
            6
            6.7
            6.3
            5.6
            5.5
            5.5
            6.1
            5.8
            5
            5.6
            5.7
            5.7
            6.2
            5.1
            5.7
            6.3
            5.8
            7.1
            6.3
            6.5
            7.6
            4.9
            7.3
            6.7
            7.2
            6.5
            6.4
            6.8
            5.7
            5.8
            6.4
            6.5
            7.7
            7.7
            6
            6.9
            5.6
            7.7
            6.3
            6.7
            7.2
            6.2
            6.1
            6.4
            7.2
            7.4
            7.9
            6.4
            6.3
            6.1
            7.7
            6.3
            6.4
            6
            6.9
            6.7
            6.9
            5.8
            6.8
            6.7
            6.7
            6.3
            6.5
            6.2
            5.9
            3.5
            3
            3.2
            3.1
            3.6
            3.9
            3.4
            3.4
            2.9
            3.1
            3.7
            3.4
            3
            3
            4
            4.4
            3.9
            3.5
            3.8
            3.8
            3.4
            3.7
            3.6
            3.3
            3.4
            3
            3.4
            3.5
            3.4
            3.2
            3.1
            3.4
            4.1
            4.2
            3.1
            3.2
            3.5
            3.1
            3
            3.4
            3.5
            2.3
            3.2
            3.5
            3.8
            3
            3.8
            3.2
            3.7
            3.3
            3.2
            3.2
            3.1
            2.3
            2.8
            2.8
            3.3
            2.4
            2.9
            2.7
            2
            3
            2.2
            2.9
            2.9
            3.1
            3
            2.7
            2.2
            2.5
            3.2
            2.8
            2.5
            2.8
            2.9
            3
            2.8
            3
            2.9
            2.6
            2.4
            2.4
            2.7
            2.7
            3
            3.4
            3.1
            2.3
            3
            2.5
            2.6
            3
            2.6
            2.3
            2.7
            3
            2.9
            2.9
            2.5
            2.8
            3.3
            2.7
            3
            2.9
            3
            3
            2.5
            2.9
            2.5
            3.6
            3.2
            2.7
            3
            2.5
            2.8
            3.2
            3
            3.8
            2.6
            2.2
            3.2
            2.8
            2.8
            2.7
            3.3
            3.2
            2.8
            3
            2.8
            3
            2.8
            3.8
            2.8
            2.8
            2.6
            3
            3.4
            3.1
            3
            3.1
            3.1
            3.1
            2.7
            3.2
            3.3
            3
            2.5
            3
            3.4
            3
            1.4
            1.4
            1.3
            1.5
            1.4
            1.7
            1.4
            1.5
            1.4
            1.5
            1.5
            1.6
            1.4
            1.1
            1.2
            1.5
            1.3
            1.4
            1.7
            1.5
            1.7
            1.5
            1
            1.7
            1.9
            1.6
            1.6
            1.5
            1.4
            1.6
            1.6
            1.5
            1.5
            1.4
            1.5
            1.2
            1.3
            1.5
            1.3
            1.5
            1.3
            1.3
            1.3
            1.6
            1.9
            1.4
            1.6
            1.4
            1.5
            1.4
            4.7
            4.5
            4.9
            4
            4.6
            4.5
            4.7
            3.3
            4.6
            3.9
            3.5
            4.2
            4
            4.7
            3.6
            4.4
            4.5
            4.1
            4.5
            3.9
            4.8
            4
            4.9
            4.7
            4.3
            4.4
            4.8
            5
            4.5
            3.5
            3.8
            3.7
            3.9
            5.1
            4.5
            4.5
            4.7
            4.4
            4.1
            4
            4.4
            4.6
            4
            3.3
            4.2
            4.2
            4.2
            4.3
            3
            4.1
            6
            5.1
            5.9
            5.6
            5.8
            6.6
            4.5
            6.3
            5.8
            6.1
            5.1
            5.3
            5.5
            5
            5.1
            5.3
            5.5
            6.7
            6.9
            5
            5.7
            4.9
            6.7
            4.9
            5.7
            6
            4.8
            4.9
            5.6
            5.8
            6.1
            6.4
            5.6
            5.1
            5.6
            6.1
            5.6
            5.5
            4.8
            5.4
            5.6
            5.1
            5.1
            5.9
            5.7
            5.2
            5
            5.2
            5.4
            5.1
            0.2
            0.2
            0.2
            0.2
            0.2
            0.4
            0.3
            0.2
            0.2
            0.1
            0.2
            0.2
            0.1
            0.1
            0.2
            0.4
            0.4
            0.3
            0.3
            0.3
            0.2
            0.4
            0.2
            0.5
            0.2
            0.2
            0.4
            0.2
            0.2
            0.2
            0.2
            0.4
            0.1
            0.2
            0.1
            0.2
            0.2
            0.1
            0.2
            0.2
            0.3
            0.3
            0.2
            0.6
            0.4
            0.3
            0.2
            0.2
            0.2
            0.2
            1.4
            1.5
            1.5
            1.3
            1.5
            1.3
            1.6
            1
            1.3
            1.4
            1
            1.5
            1
            1.4
            1.3
            1.4
            1.5
            1
            1.5
            1.1
            1.8
            1.3
            1.5
            1.2
            1.3
            1.4
            1.4
            1.7
            1.5
            1
            1.1
            1
            1.2
            1.6
            1.5
            1.6
            1.5
            1.3
            1.3
            1.3
            1.2
            1.4
            1.2
            1
            1.3
            1.2
            1.3
            1.3
            1.1
            1.3
            2.5
            1.9
            2.1
            1.8
            2.2
            2.1
            1.7
            1.8
            1.8
            2.5
            2
            1.9
            2.1
            2
            2.4
            2.3
            1.8
            2.2
            2.3
            1.5
            2.3
            2
            2
            1.8
            2.1
            1.8
            1.8
            1.8
            2.1
            1.6
            1.9
            2
            2.2
            1.5
            1.4
            2.3
            2.4
            1.8
            1.8
            2.1
            2.4
            2.3
            1.9
            2.3
            2.5
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            <hdf5:SimpleDataspace Ndims="1">
               <hdf5:Dimension  DimSize="2" MaxDimSize="2"/>
            </hdf5:SimpleDataspace>
         </hdf5:Dataspace>
         <hdf5:DataType>
            <hdf5:AtomicType>
               <hdf5:StringType Cset="H5T_CSET_ASCII" StrSize="H5T_VARIABLE" StrPad="H5T_STR_NULLTERM"/>
            </hdf5:AtomicType>
         </hdf5:DataType>
         <hdf5:Data>
            <hdf5:DataFromFile>
            "double0"
            "class"
            </hdf5:DataFromFile>
         </hdf5:Data>
      </hdf5:Dataset>
      <hdf5:Dataset Name="types" OBJ-XID="xid_24688" H5Path= "/data_descr/types" Parents="xid_10272" H5ParentPaths="/data_descr">
         <hdf5:StorageLayout>
            <hdf5:ContiguousLayout/>
         </hdf5:StorageLayout>
         <hdf5:FillValueInfo FillTime="FillOnAlloc" AllocationTime="Late">
            <hdf5:FillValue>
               <hdf5:Data>
                  <!-- String fill values not yet implemented. -->
                  <hdf5:NoData />
               </hdf5:Data>
            </hdf5:FillValue>
         </hdf5:FillValueInfo>
         <hdf5:Dataspace>
            <hdf5:SimpleDataspace Ndims="1">
               <hdf5:Dimension  DimSize="5" MaxDimSize="5"/>
            </hdf5:SimpleDataspace>
         </hdf5:Dataspace>
         <hdf5:DataType>
            <hdf5:AtomicType>
               <hdf5:StringType Cset="H5T_CSET_ASCII" StrSize="H5T_VARIABLE" StrPad="H5T_STR_NULLTERM"/>
            </hdf5:AtomicType>
         </hdf5:DataType>
         <hdf5:Data>
            <hdf5:DataFromFile>
            "numeric"
            "numeric"
            "numeric"
            "numeric"
            "nominal:Iris-setosa,Iris-versicolor,Iris-virginica"
            </hdf5:DataFromFile>
         </hdf5:Data>
      </hdf5:Dataset>
   </hdf5:Group>
</hdf5:RootGroup>
</hdf5:HDF5-File>