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Corn and Soybean Survey and Satellite Data in 12 Iowa Counties

Source: R/data.R
cornsoybean.Rd

Survey and satellite data for corn and soy beans in 12 Iowa counties, originally obtained from the 1978 June Enumerative Survey of the U.S. Department of Agriculture and from LANDSAT satellite observations during the 1978 growing season.

Usage

data(cornsoybean)

Format

A data frame with 37 observations on the following 5 variables:

County

numeric county code.

CornHec

reported hectares of corn from the survey.

SoyBeansHec

reported hectares of soy beans from the survey.

CornPix

number of pixels of corn in the sample segment within county, from satellite data.

SoyBeansPix

number of pixels of soy beans in the sample segment within county, from satellite data.

Source

Battese, G.E., Harter, R.M., and Fuller, W.A. (1988). *An Error-Components Model for Prediction of County Crop Areas Using Survey and Satellite Data.* *Journal of the American Statistical Association*, 83, 28–36.

Details

This dataset is included for demonstration purposes and is originally provided in the sae package.

Examples

data(cornsoybean)
head(cornsoybean)
#>   County CornHec SoyBeansHec CornPix SoyBeansPix
#> 1      1  165.76        8.09     374          55
#> 2      2   96.32      106.03     209         218
#> 3      3   76.08      103.60     253         250
#> 4      4  185.35        6.47     432          96
#> 5      4  116.43       63.82     367         178
#> 6      5  162.08       43.50     361         137