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5.1,3.5,1.4,0.2,Iris-setosa | ||
4.9,3.0,1.4,0.2,Iris-setosa | ||
4.7,3.2,1.3,0.2,Iris-setosa | ||
4.6,3.1,1.5,0.2,Iris-setosa | ||
5.0,3.6,1.4,0.2,Iris-setosa | ||
5.4,3.9,1.7,0.4,Iris-setosa | ||
4.6,3.4,1.4,0.3,Iris-setosa | ||
5.0,3.4,1.5,0.2,Iris-setosa | ||
4.4,2.9,1.4,0.2,Iris-setosa | ||
4.9,3.1,1.5,0.1,Iris-setosa | ||
5.4,3.7,1.5,0.2,Iris-setosa | ||
4.8,3.4,1.6,0.2,Iris-setosa | ||
4.8,3.0,1.4,0.1,Iris-setosa | ||
4.3,3.0,1.1,0.1,Iris-setosa | ||
5.8,4.0,1.2,0.2,Iris-setosa | ||
5.7,4.4,1.5,0.4,Iris-setosa | ||
5.4,3.9,1.3,0.4,Iris-setosa | ||
5.1,3.5,1.4,0.3,Iris-setosa | ||
5.7,3.8,1.7,0.3,Iris-setosa | ||
5.1,3.8,1.5,0.3,Iris-setosa | ||
5.4,3.4,1.7,0.2,Iris-setosa | ||
5.1,3.7,1.5,0.4,Iris-setosa | ||
4.6,3.6,1.0,0.2,Iris-setosa | ||
5.1,3.3,1.7,0.5,Iris-setosa | ||
4.8,3.4,1.9,0.2,Iris-setosa | ||
5.0,3.0,1.6,0.2,Iris-setosa | ||
5.0,3.4,1.6,0.4,Iris-setosa | ||
5.2,3.5,1.5,0.2,Iris-setosa | ||
5.2,3.4,1.4,0.2,Iris-setosa | ||
4.7,3.2,1.6,0.2,Iris-setosa | ||
4.8,3.1,1.6,0.2,Iris-setosa | ||
5.4,3.4,1.5,0.4,Iris-setosa | ||
5.2,4.1,1.5,0.1,Iris-setosa | ||
5.5,4.2,1.4,0.2,Iris-setosa | ||
4.9,3.1,1.5,0.1,Iris-setosa | ||
5.0,3.2,1.2,0.2,Iris-setosa | ||
5.5,3.5,1.3,0.2,Iris-setosa | ||
4.9,3.1,1.5,0.1,Iris-setosa | ||
4.4,3.0,1.3,0.2,Iris-setosa | ||
5.1,3.4,1.5,0.2,Iris-setosa | ||
5.0,3.5,1.3,0.3,Iris-setosa | ||
4.5,2.3,1.3,0.3,Iris-setosa | ||
4.4,3.2,1.3,0.2,Iris-setosa | ||
5.0,3.5,1.6,0.6,Iris-setosa | ||
5.1,3.8,1.9,0.4,Iris-setosa | ||
4.8,3.0,1.4,0.3,Iris-setosa | ||
5.1,3.8,1.6,0.2,Iris-setosa | ||
4.6,3.2,1.4,0.2,Iris-setosa | ||
5.3,3.7,1.5,0.2,Iris-setosa | ||
5.0,3.3,1.4,0.2,Iris-setosa | ||
7.0,3.2,4.7,1.4,Iris-versicolor | ||
6.4,3.2,4.5,1.5,Iris-versicolor | ||
6.9,3.1,4.9,1.5,Iris-versicolor | ||
5.5,2.3,4.0,1.3,Iris-versicolor | ||
6.5,2.8,4.6,1.5,Iris-versicolor | ||
5.7,2.8,4.5,1.3,Iris-versicolor | ||
6.3,3.3,4.7,1.6,Iris-versicolor | ||
4.9,2.4,3.3,1.0,Iris-versicolor | ||
6.6,2.9,4.6,1.3,Iris-versicolor | ||
5.2,2.7,3.9,1.4,Iris-versicolor | ||
5.0,2.0,3.5,1.0,Iris-versicolor | ||
5.9,3.0,4.2,1.5,Iris-versicolor | ||
6.0,2.2,4.0,1.0,Iris-versicolor | ||
6.1,2.9,4.7,1.4,Iris-versicolor | ||
5.6,2.9,3.6,1.3,Iris-versicolor | ||
6.7,3.1,4.4,1.4,Iris-versicolor | ||
5.6,3.0,4.5,1.5,Iris-versicolor | ||
5.8,2.7,4.1,1.0,Iris-versicolor | ||
6.2,2.2,4.5,1.5,Iris-versicolor | ||
5.6,2.5,3.9,1.1,Iris-versicolor | ||
5.9,3.2,4.8,1.8,Iris-versicolor | ||
6.1,2.8,4.0,1.3,Iris-versicolor | ||
6.3,2.5,4.9,1.5,Iris-versicolor | ||
6.1,2.8,4.7,1.2,Iris-versicolor | ||
6.4,2.9,4.3,1.3,Iris-versicolor | ||
6.6,3.0,4.4,1.4,Iris-versicolor | ||
6.8,2.8,4.8,1.4,Iris-versicolor | ||
6.7,3.0,5.0,1.7,Iris-versicolor | ||
6.0,2.9,4.5,1.5,Iris-versicolor | ||
5.7,2.6,3.5,1.0,Iris-versicolor | ||
5.5,2.4,3.8,1.1,Iris-versicolor | ||
5.5,2.4,3.7,1.0,Iris-versicolor | ||
5.8,2.7,3.9,1.2,Iris-versicolor | ||
6.0,2.7,5.1,1.6,Iris-versicolor | ||
5.4,3.0,4.5,1.5,Iris-versicolor | ||
6.0,3.4,4.5,1.6,Iris-versicolor | ||
6.7,3.1,4.7,1.5,Iris-versicolor | ||
6.3,2.3,4.4,1.3,Iris-versicolor | ||
5.6,3.0,4.1,1.3,Iris-versicolor | ||
5.5,2.5,4.0,1.3,Iris-versicolor | ||
5.5,2.6,4.4,1.2,Iris-versicolor | ||
6.1,3.0,4.6,1.4,Iris-versicolor | ||
5.8,2.6,4.0,1.2,Iris-versicolor | ||
5.0,2.3,3.3,1.0,Iris-versicolor | ||
5.6,2.7,4.2,1.3,Iris-versicolor | ||
5.7,3.0,4.2,1.2,Iris-versicolor | ||
5.7,2.9,4.2,1.3,Iris-versicolor | ||
6.2,2.9,4.3,1.3,Iris-versicolor | ||
5.1,2.5,3.0,1.1,Iris-versicolor | ||
5.7,2.8,4.1,1.3,Iris-versicolor | ||
6.3,3.3,6.0,2.5,Iris-virginica | ||
5.8,2.7,5.1,1.9,Iris-virginica | ||
7.1,3.0,5.9,2.1,Iris-virginica | ||
6.3,2.9,5.6,1.8,Iris-virginica | ||
6.5,3.0,5.8,2.2,Iris-virginica | ||
7.6,3.0,6.6,2.1,Iris-virginica | ||
4.9,2.5,4.5,1.7,Iris-virginica | ||
7.3,2.9,6.3,1.8,Iris-virginica | ||
6.7,2.5,5.8,1.8,Iris-virginica | ||
7.2,3.6,6.1,2.5,Iris-virginica | ||
6.5,3.2,5.1,2.0,Iris-virginica | ||
6.4,2.7,5.3,1.9,Iris-virginica | ||
6.8,3.0,5.5,2.1,Iris-virginica | ||
5.7,2.5,5.0,2.0,Iris-virginica | ||
5.8,2.8,5.1,2.4,Iris-virginica | ||
6.4,3.2,5.3,2.3,Iris-virginica | ||
6.5,3.0,5.5,1.8,Iris-virginica | ||
7.7,3.8,6.7,2.2,Iris-virginica | ||
7.7,2.6,6.9,2.3,Iris-virginica | ||
6.0,2.2,5.0,1.5,Iris-virginica | ||
6.9,3.2,5.7,2.3,Iris-virginica | ||
5.6,2.8,4.9,2.0,Iris-virginica | ||
7.7,2.8,6.7,2.0,Iris-virginica | ||
6.3,2.7,4.9,1.8,Iris-virginica | ||
6.7,3.3,5.7,2.1,Iris-virginica | ||
7.2,3.2,6.0,1.8,Iris-virginica | ||
6.2,2.8,4.8,1.8,Iris-virginica | ||
6.1,3.0,4.9,1.8,Iris-virginica | ||
6.4,2.8,5.6,2.1,Iris-virginica | ||
7.2,3.0,5.8,1.6,Iris-virginica | ||
7.4,2.8,6.1,1.9,Iris-virginica | ||
7.9,3.8,6.4,2.0,Iris-virginica | ||
6.4,2.8,5.6,2.2,Iris-virginica | ||
6.3,2.8,5.1,1.5,Iris-virginica | ||
6.1,2.6,5.6,1.4,Iris-virginica | ||
7.7,3.0,6.1,2.3,Iris-virginica | ||
6.3,3.4,5.6,2.4,Iris-virginica | ||
6.4,3.1,5.5,1.8,Iris-virginica | ||
6.0,3.0,4.8,1.8,Iris-virginica | ||
6.9,3.1,5.4,2.1,Iris-virginica | ||
6.7,3.1,5.6,2.4,Iris-virginica | ||
6.9,3.1,5.1,2.3,Iris-virginica | ||
5.8,2.7,5.1,1.9,Iris-virginica | ||
6.8,3.2,5.9,2.3,Iris-virginica | ||
6.7,3.3,5.7,2.5,Iris-virginica | ||
6.7,3.0,5.2,2.3,Iris-virginica | ||
6.3,2.5,5.0,1.9,Iris-virginica | ||
6.5,3.0,5.2,2.0,Iris-virginica | ||
6.2,3.4,5.4,2.3,Iris-virginica | ||
5.9,3.0,5.1,1.8,Iris-virginica | ||
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1. Title: Iris Plants Database | ||
Updated Sept 21 by C.Blake - Added discrepency information | ||
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2. Sources: | ||
(a) Creator: R.A. Fisher | ||
(b) Donor: Michael Marshall (MARSHALL%PLU@io.arc.nasa.gov) | ||
(c) Date: July, 1988 | ||
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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., & Hart,P.E. (1973) Pattern Classification and Scene Analysis. | ||
(Q327.D83) John Wiley & 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's AUTOCLASS II | ||
conceptual clustering system finds 3 classes in the data. | ||
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4. Relevant Information: | ||
--- This is perhaps the best known database to be found in the pattern | ||
recognition literature. Fisher's paper is a classic in the field | ||
and is referenced frequently to this day. (See Duda & 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. | ||
--- This data differs from the data presented in Fishers article | ||
(identified by Steve Chadwick, spchadwick@espeedaz.net ) | ||
The 35th sample should be: 4.9,3.1,1.5,0.2,"Iris-setosa" | ||
where the error is in the fourth feature. | ||
The 38th sample: 4.9,3.6,1.4,0.1,"Iris-setosa" | ||
where the errors are in the second and third features. | ||
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5. Number of Instances: 150 (50 in each of three classes) | ||
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6. Number of Attributes: 4 numeric, predictive attributes and the class | ||
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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 | ||
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8. Missing Attribute Values: None | ||
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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!) | ||
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9. Class Distribution: 33.3% for each of 3 classes. |