Hoja de ruta para nodos y puertas de entrada a la información (RING) para la investigación agraria para el desarrollo

Mercer and Hall wheat yield data

Propietario: 

Description
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This data was taken from the R package `spdep'. The description from the package is as follows:

Mercer and Hall wheat yield data, based on version in Cressie (1993), p. 455.

Format
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This is a three column csv file, the data in which was made available by Hongfei Li. There are 500 observations on the following 6 variables.

- lat: local coordinates northings ordered north to south

- lon: local coordinates eastings

- yield: Mercer and Hall wheat yield data

Note
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- These are /local/ lat-lon coordinates.

- The value of 4.03 was changed to 4.33 (wheat[71,]) 13 January 2014; thanks to Sandy Burden; cross-checked with http://www.itc.nl/personal/rossiter/teach/R/mhw.csv, which agrees.

References
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Cressie, N. A. C. (1993) Statistics for Spatial Data. Wiley, New York, p. 455.
Mercer, W. B. and Hall, A. D. (1911) The experimental error of field trials. Journal of Agricultural Science 4, 107-132.

General
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Networks
Contenido
Percentage of records about agriculture: 
100%
Other topics: 
Currency: 
Current / updated
agINFRA The RING is part of the agINFRA project EC 7th framework program INFRA-2011-1.2.2 - Grant agr. no: 283770