|1. Title: Large Soybean Database||2. Sources:|     (a) Michalski,R.S. Learning by being told and learning from|         examples: an experimental comparison of the two methodes of knowledge|         acquisition in the context of developing an expert system for soybean|         desease diagnoiss", International Journal of Policy Analysis and|         Information Systems, 1980, 4(2), 125-161.|     (b) Donor: Ming Tan & Jeff Schlimmer (Jeff.Schlimmer%cs.cmu.edu)|     (c) Date: 11 July 1988||3. Past Usage:|      1. See above.|      2. Tan, M., & Eshelman, L. (1988). Using weighted networks to represent|         classification knowledge in noisy domains.  Proceedings of the Fifth|         International Conference on Machine Learning (pp. 121-134). Ann Arbor,|         Michigan: Morgan Kaufmann.|         -- IWN recorded a 97.1% classification accuracy |            -- 290 training and 340 test instances|      3. Fisher,D.H. & Schlimmer,J.C. (1988). Concept Simplification and|         Predictive Accuracy. Proceedings of the Fifth|         International Conference on Machine Learning (pp. 121-134). Ann Arbor,|         Michigan: Morgan Kaufmann.|         -- Notes why this database is highly predictable||4. Relevant Information Paragraph:|    There are 19 classes, only the first 15 of which have been used in prior|    work.  The folklore seems to be that the last four classes are|    unjustified by the data since they have so few examples.|    There are 35 categorical attributes, some nominal and some ordered.  The|    value ``dna'' means does not apply.  The values for attributes are|    encoded numerically, with the first value encoded as ``0,'' the second as|    ``1,'' and so forth.  An unknown values is encoded as ``-1.''||5. Number of Instances: 316||6. Number of Attributes: 35 (all have been nominalized)| |7. Attribute Information: |    -- 19 Classes|     diaporthe-stem-canker, charcoal-rot, rhizoctonia-root-rot,|     phytophthora-rot, brown-stem-rot, powdery-mildew,|     downy-mildew, brown-spot, bacterial-blight,|     bacterial-pustule, purple-seed-stain, anthracnose,|     phyllosticta-leaf-spot, alternarialeaf-spot,|     frog-eye-leaf-spot, diaporthe-pod-&-stem-blight,|     cyst-nematode, 2-4-d-injury, herbicide-injury.	||    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,?.||8. Number of Missing Attribute Values:|    1. date: 0|    2. plant-stand: 1|    3. precip: 8|    4. temp: 11|    5. hail: 7|    6. crop-hist: 41|    7. area-damaged: 1|    8. severity: 1|    9. seed-tmt: 41|   10. germination: 41|   11. plant-growth: 36|   12. leaves: 1|   13. leafspots-halo: 0|   14. leafspots-marg: 25|   15. leafspot-size: 25|   16. leaf-shread: 25|   17. leaf-malf: 26|   18. leaf-mild: 25|   19. stem: 30|   20. lodging: 1|   21. stem-cankers: 41|   22. canker-lesion: 11|   23. fruiting-bodies: 11|   24. external decay: 35|   25. mycelium: 11|   26. int-discolor: 11|   27. sclerotia: 11|   28. fruit-pods: 11|   29. fruit spots: 25|   30. seed: 35|   31. mold-growth: 29|   32. seed-discolor: 29|   33. seed-size: 35|   34. shriveling: 29|   35. roots: 35||9. Class Distribution: |   1. diaporthe-stem-canker: 10|   2. charcoal-rot: 10|   3. rhizoctonia-root-rot: 10|   4. phytophthora-rot: 40|   5. brown-stem-rot: 20|   6. powdery-mildew: 10|   7. downy-mildew: 10|   8. brown-spot: 40|   9. bacterial-blight: 10|  10. bacterial-pustule: 10|  11. purple-seed-stain: 10|  12. anthracnose: 20|  13. phyllosticta-leaf-spot: 10|  14. alternarialeaf-spot: 40|  15. frog-eye-leaf-spot: 40|  16. diaporthe-pod-&-stem-blight: 6|  17. cyst-nematode: 6|  18. 2-4-d-injury: 1|  19. herbicide-injury: 4||----------------------------------------------------------|  Classes (19)|  -------     diaporthe-stem-canker, charcoal-rot, rhizoctonia-root-rot,     phytophthora-rot, brown-stem-rot, powdery-mildew,     downy-mildew, brown-spot, bacterial-blight,     bacterial-pustule, purple-seed-stain, anthracnose,     phyllosticta-leaf-spot, alternarialeaf-spot,     frog-eye-leaf-spot, diaporthe-pod-&-stem-blight,     cyst-nematode, 2-4-d-injury, herbicide-injury.	|  Attributes|  ----------date:		april,may,june,july,august,september,october.plant-stand:	normal,lt-normal.precip:		lt-norm,norm,gt-norm.temp:		lt-norm,norm,gt-norm.hail:		yes,no.crop-hist:	diff-lst-year,same-lst-yr,same-lst-two-yrs,                 same-lst-sev-yrs.area-damaged:	scattered,low-areas,upper-areas,whole-field.severity:	minor,pot-severe,severe.seed-tmt:	none,fungicide,other.germination:	90-100%,80-89%,lt-80%.plant-growth:	norm,abnorm.leaves:		norm,abnorm.leafspots-halo:	absent,yellow-halos,no-yellow-halos.leafspots-marg:	w-s-marg,no-w-s-marg,dna.leafspot-size:	lt-1/8,gt-1/8,dna.leaf-shread:	absent,present.leaf-malf:	absent,present.leaf-mild:	absent,upper-surf,lower-surf.stem:		norm,abnorm.lodging:    	yes,no.stem-cankers:	absent,below-soil,above-soil,above-sec-nde.canker-lesion:	dna,brown,dk-brown-blk,tan.fruiting-bodies:	absent,present.external decay:	absent,firm-and-dry,watery.mycelium:	absent,present.int-discolor:	none,brown,black.sclerotia:	absent,present.fruit-pods:	norm,diseased,few-present,dna.fruit spots:	absent,colored,brown-w/blk-specks,distort,dna.seed:		norm,abnorm.mold-growth:	absent,present.seed-discolor:	absent,present.seed-size:	norm,lt-norm.shriveling:	absent,present.roots:		norm,rotted,galls-cysts.