Campbell Bushfire Data — bushfire • robustbase

This data set was used by Campbell (1984) to locate bushfire scars. The dataset contains satelite measurements on five frequency bands, corresponding to each of 38 pixels.

data(bushfire, package="robustbase")

Format

A data frame with 38 observations on 5 variables.

Source

Maronna, R.A. and Yohai, V.J. (1995) The Behavoiur of the Stahel-Donoho Robust Multivariate Estimator. Journal of the American Statistical Association 90, 330–341.

Examples

data(bushfire)
plot(bushfire)

covMcd(bushfire)
#> Minimum Covariance Determinant (MCD) estimator approximation.
#> Method: Fast MCD(alpha=0.5 ==> h=22); nsamp = 500; (n,k)mini = (300,5)
#> Call:
#> covMcd(x = bushfire)
#> Log(Det.):  18.14 
#> 
#> Robust Estimate of Location:
#>    V1     V2     V3     V4     V5  
#> 105.5  146.9  274.4  217.5  279.0  
#> Robust Estimate of Covariance:
#>          V1       V2     V3      V4      V5
#> V1    346.0    267.7  -1692  -380.7  -310.5
#> V2    267.7    236.3  -1125  -229.8  -194.2
#> V3  -1692.0  -1125.0   9993  2455.3  1951.2
#> V4   -380.7   -229.8   2455   646.7   505.1
#> V5   -310.5   -194.2   1951   505.1   397.8