depth {CensSpatial}

Depths of a geological horizon.

Description

Dataset previously analyzed by Dubrule and Kostov (1986) and De Oliveira (2005).

Usage

data("depth")

Format

A data frame with 100 observations on the following 6 variables.

coord x

x coordinate for depth data.

coord y

y coordinate for depth data.

cc

indicator of censure (left and right censure).

LI

lower limit of censure for depth data.

LS

upper limit of censure for depth data.

depth

observated depth.

Details

The observations are placed over a region of about 9 by 5 km and represent depths of a geological horizon measured at 100 locations where 69 points are fully observed and 31 points are censored points, these are divided into left- and right- censored points. The depth data were transformed and their original units remains unknown for confidentiality reasons. For additional details about this dataset we refer to De Oliveira (2005).

References

Dubrule, O. and C. Kostov (1986). An interpolation method taking into account inequality constraints: I. methodology. Mathematical Geology 18(1), 33-51.

De Oliveira, V. (2005). Bayesian inference and prediction of Gaussian random fields based on censored data. Journal of Computational and Graphical Statistics 14(1), 95-115.

Examples

data(depth)
summary(depth$depth)