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arff slurped Weka

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# Instances: 155 / # Attributes: 9
HDF5 (37.0 KB) XML CSV ARFF LibSVM Matlab Octave

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Original Data Format

arff

Name

grub-damage

Version mldata

0

Comment

Grass Grubs and Damage Ranking

Data source: R. J. Townsend AgResearch Lincoln New Zealand

Grass grubs are one of the major insect pests of pasture in Canterbury and can cause severe pasture damage and economic loss. Pastoral damage may occur periodically over wide ranging areas. Grass grub populations are often influenced by biotic factors (diseases) and farming pracices (such as irrigation and heavy rolling). Th objective of the report was to report on grass grub population and damage levels to provide objective estimates of the annual losses caused by grass grubs.

The original machine learning objective was to find a relationship between grass grub numbers, irrigation and damage ranking for the period between 1986 to 1992.

Number of Instances: 155

Attribute Information: 1. year_zone - Years 0, 1, 2, 6, 7, 8, 9 divided into three zones: f, m, c - enumerated 2. year - year of trial - enumerated 3. strip - strip of paddock sampled - integer 4. pdk - paddock sampled - integer 5. damage_rankRJT - RJ Townsends damage ranking - enumerated 6. damage_rankALL - other researchers damage ranking - enumerated 7. dry_or_irr - indicates if paddock was dry or irrigated (D: dryland, O: irrigated overhead, B: irrigated border dyke) - enumerated 8. zone - position of paddock (F: foothills, M: midplain, C: coastal) - enumerated Class: 9. GG_new - based on grass grubs per metre squared - enumerated

Class Distribution: low - 49 average - 41 high - 46 veryhigh - 19

Names

year_zone,year,strip,pdk,damage_rankRJT,damage_rankALL,dry_or_irr,zone,GG_new,

Types

1. nominal:6f,6m,6c,7f,7m,7c,8f,8m,8c,9f,9m,9c,0f,0m,0c,1f,1m,1c,2f,2m,2c
2. nominal:86,87,88,89,90,91,92
3. numeric
4. numeric
5. nominal:0,1,2,3,4,5
6. nominal:0,1,2,3,4,5
7. nominal:D,O,B
8. nominal:F,M,C
9. nominal:low,average,high,veryhigh

Data (first 10 data points)

year...	year	strip	pdk	dama...	dama...	dry_...	zone	GG_new
6f	86	3	1	1	0	D	F	low
6f	86	3	2	0	0	D	F	high
6f	86	3	3	1	1	D	F	high
6f	86	3	4	1	0	D	F	high
6f	86	3	5	0	0	D	F	low
6f	86	4	1	0	1	D	F	low
6f	86	4	2	2	2	D	F	high
6f	86	4	3	1	0	D	F	low
6m	86	6	1	2	0	D	M	aver...
6m	86	6	2	3	3	D	M	aver...
...	...	...	...	...	...	...	...	...

Description

A jarfile containing 6 agricultural datasets obtained from agricultural researchers in New Zealand (agridatasets.jar, 31,200 Bytes).

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revision 1

by mldata on 2010-11-06 09:57

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