Soybean (Small)

Donated on 12/31/1986

Michalski's famous soybean disease database

Dataset Characteristics

Multivariate

Subject Area

Biology

Associated Tasks

Classification

Feature Type

Categorical

# Instances

47

# Features

35

Dataset Information

Additional Information

A small subset of the original soybean database. See the reference for Fisher and Schlimmer in soybean-large.names for more information. Steven Souders wrote: > Figure 15 in the Michalski and Stepp paper (PAMI-82) says that the > discriminant values for the attribute CONDITION OF FRUIT PODS for the > classes Rhizoctonia Root Rot and Phytophthora Rot are "few or none" > and "irrelevant" respectively. However, in the SOYBEAN-SMALL dataset > I got from UCI, the value for this attribute is "dna" (does not apply) > for both classes. I show the actual data below for cases D3 > (Rhizoctonia Root Rot) and D4 (Phytophthora Rot). According to the > attribute names given in soybean-large.names, FRUIT-PODS is attribute > #28. If you look at column 28 in the data below (marked with arrows) > you'll notice that all cases of D3 and D4 have the same value. Thus, > the SOYBEAN-SMALL dataset from UCI could NOT have produced the results > in the Michalski and Stepp paper. I do not have that paper, but have found what is probably a later variation of that figure in Stepp's dissertation, which lists the value "normal" for the first 2 classes and "irrelevant" for the latter 2 classes. I believe that "irrelevant" is used here as a synonym for "not-applicable", "dna", and "does-not-apply". I believe that there is a mis-print in the figure he read in their PAMI-83 article. I have checked over each attribute value in this database. It corresponds exactly with the copies listed in both Stepp's and Fisher's dissertations.

Has Missing Values?

No

Variables Table

Variable NameRoleTypeDescriptionUnitsMissing Values
dateFeatureCategoricalno
plant-standFeatureCategoricalno
precipFeatureCategoricalno
tempFeatureCategoricalno
hailFeatureCategoricalno
crop-histFeatureCategoricalno
area-damagedFeatureCategoricalno
severityFeatureCategoricalno
seed-tmtFeatureCategoricalno
germinationFeatureCategoricalno

0 to 10 of 36

Additional Variable Information

1. date: april,may,june,july,august,september,october,?. 2. plant-stand: normal,lt-normal,?. 3. precip: lt-norm,norm,gt-norm,?. 4. temp: lt-norm,norm,gt-norm,?. 5. hail: yes,no,?. 6. crop-hist: diff-lst-year,same-lst-yr,same-lst-two-yrs, same-lst-sev-yrs,?. 7. area-damaged: scattered,low-areas,upper-areas,whole-field,?. 8. severity: minor,pot-severe,severe,?. 9. seed-tmt: none,fungicide,other,?. 10. germination: 90-100%,80-89%,lt-80%,?. 11. plant-growth: norm,abnorm,?. 12. leaves: norm,abnorm. 13. leafspots-halo: absent,yellow-halos,no-yellow-halos,?. 14. leafspots-marg: w-s-marg,no-w-s-marg,dna,?. 15. leafspot-size: lt-1/8,gt-1/8,dna,?. 16. leaf-shread: absent,present,?. 17. leaf-malf: absent,present,?. 18. leaf-mild: absent,upper-surf,lower-surf,?. 19. stem: norm,abnorm,?. 20. lodging: yes,no,?. 21. stem-cankers: absent,below-soil,above-soil,above-sec-nde,?. 22. canker-lesion: dna,brown,dk-brown-blk,tan,?. 23. fruiting-bodies: absent,present,?. 24. external decay: absent,firm-and-dry,watery,?. 25. mycelium: absent,present,?. 26. int-discolor: none,brown,black,?. 27. sclerotia: absent,present,?. 28. fruit-pods: norm,diseased,few-present,dna,?. 29. fruit spots: absent,colored,brown-w/blk-specks,distort,dna,?. 30. seed: norm,abnorm,?. 31. mold-growth: absent,present,?. 32. seed-discolor: absent,present,?. 33. seed-size: norm,lt-norm,?. 34. shriveling: absent,present,?. 35. roots: norm,rotted,galls-cysts,?.

Baseline Model Performance

Reviews

There are no reviews for this dataset yet.

Login to Write a Review
Download
0 citations
26453 views

Creators

R. Michalski

License

By using the UCI Machine Learning Repository, you acknowledge and accept the cookies and privacy practices used by the UCI Machine Learning Repository.

Read Policy