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unknown (from Weka repository)

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arff slurped Weka

Attribute Types

Integer,Floating Point,String

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# Instances: 736 / # Attributes: 20
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Original Data Format

arff

Name

eucalyptus

Version mldata

0

Comment

Eucalyptus Soil Conservation

Data source: Bruce Bulloch 128 Cook Street Palmerston North New Zealand

The objective was to determine which seedlots in a species are best for soil conservation in seasonally dry hill country. Determination is found by measurement of height, diameter by height, survival, and other contributing factors.

It is important to note that eucalypt trial methods changed over time; earlier trials included mostly 15 - 30cm tall seedling grown in peat plots and the later trials have included mostly three replications of eight trees grown. This change may contribute to less significant results.

Experimental data recording procedures which require noting include: - instances with no data recorded due to experimental recording procedures require that the absence of a species from one replicate at a site was treated as a missing value, but if absent from two or more replicates at a site the species was excluded from the site's analyses. - missing data for survival, vigour, insect resistance, stem form, crown form and utility especially for the data recorded at the Morea Station; this could indicate the death of species in these areas or a lack in collection of data.

Number of Instances: 736

Attribute Information: 1. Abbrev - site abbreviation - enumerated 2. Rep - site rep - integer 3. Locality - site locality in the North Island - enumerated 4. Map_Ref - map location in the North Island - enumerated 5. Latitude - latitude approximation - enumerated 6. Altitude - altitude approximation - integer 7. Rainfall - rainfall (mm pa) - integer 8. Frosts - frosts (deg. c) - integer 9. Year - year of planting - integer 10. Sp - species code - enumerated 11. PMCno - seedlot number - integer 12. DBH - best diameter base height (cm) - real 13. Ht - height (m) - real 14. Surv - survival - integer 15. Vig - vigour - real 16. Ins_res - insect resistance - real 17. Stem_Fm - stem form - real 18. Crown_Fm - crown form - real 19. Brnch_Fm - branch form - real Class: 20. Utility - utility rating - enumerated

Class Distribution: none - 180 low - 107 average - 130 good - 214 best - 105

Names

Abbrev,Rep,Locality,Map_Ref,Latitude,Altitude,Rainfall,Frosts,Year,Sp,

Types

1. nominal:Cra,Cly,Nga,Wai,K81,Wak,K82,WSp,K83,Lon,Puk,Paw,K81a,Mor,Wen,WSh
2. numeric
3. nominal:Central_Hawkes_Bay,Northern_Hawkes_Bay,Southern_Hawkes_Bay,Central_Hawkes_Bay_(coastal),Central_Wairarapa,South_Wairarapa,Southern_Hawkes_Bay_(coastal),Central_Poverty_Bay
4. nominal:N135_382/137,N116_848/985,N145_874/586,N142_377/957,N158_344/626,N162_081/300,N158_343/625,N151_912/221,N162_097/424,N166_063/197,N146_273/737,N141_295/063,N98_539/567,N151_922/226
5. nominal:39__38,39__00,40__11,39__50,40__57,41__12,40__36,41__08,41__16,40__00,39__43,82__32
6. numeric
7. numeric
8. numeric
9. numeric
10. nominal:co,fr,ma,nd,ni,ob,ov,pu,rd,si,mn,ag,bxs,br,el,fa,jo,ka,re,sm,ro,nc,am,cr,pa,ra,te

Data (first 10 data points)

Abbrev	Rep	Loca...	Map_...	Lati...	Alti...	Rain...	Frosts	Year	Sp	...
Cra	1	Cent...	N135...	39__38	100	850	-2	1980	co	...
Cra	1	Cent...	N135...	39__38	100	850	-2	1980	fr	...
Cra	1	Cent...	N135...	39__38	100	850	-2	1980	ma	...
Cra	1	Cent...	N135...	39__38	100	850	-2	1980	nd	...
Cra	1	Cent...	N135...	39__38	100	850	-2	1980	ni	...
Cra	1	Cent...	N135...	39__38	100	850	-2	1980	ob	...
Cra	1	Cent...	N135...	39__38	100	850	-2	1980	ov	...
Cra	1	Cent...	N135...	39__38	100	850	-2	1980	pu	...
Cra	1	Cent...	N135...	39__38	100	850	-2	1980	rd	...
Cra	1	Cent...	N135...	39__38	100	850	-2	1980	si	...
...	...	...	...	...	...	...	...	...	...	...

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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