| rock {stats} | R Documentation |
Measurements on 48 rock samples from a petroleum reservoir.
data(rock)
A data frame with 48 rows and 4 numeric columns.
| [,1] | area | area of pores space, in pixels out of 256 by 256 |
| [,2] | peri | perimeter in pixels |
| [,3] | shape | perimeter/sqrt(area) |
| [,4] | perm | permeability in milli-Darcies |
Twelve core samples from petroleum reservoirs were sampled by 4 cross-sections. Each core sample was measured for permeability, and each cross-section has total area of pores, total perimeter of pores, and shape.
Data from BP Research, image analysis by Ronit Katz, U. Oxford.