pub fn rock() -> Result<DataFrame, PolarsError>Expand description
§Measurements on Petroleum Rock Samples
§Description:
Measurements on 48 rock samples from a petroleum reservoir.
§Usage:
rock
§Format:
A data frame with 48 rows and 4 numeric columns.
- [,1] areaarea of pores space, in pixels out of 256 by 256
- [,2] periperimeter in pixels
- [,3] shape perimeter/sqrt(area)
- [,4] permpermeability in milli-Darcies
§Details:
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.
§Source:
Data from BP Research, image analysis by Ronit Katz, U. Oxford.