topo {MASS} | R Documentation |

## Spatial Topographic Data

### Description

The `topo`

data frame has 52 rows and 3 columns, of
topographic heights within a 310 feet square.

### Usage

topo

### Format

This data frame contains the following columns:

`x`

- x coordinates (units of 50 feet)
`y`

- y coordinates (units of 50 feet)
`z`

- heights (feet)

### Source

Davis, J.C. (1973)
*Statistics and Data Analysis in Geology.*
Wiley.

### References

Venables, W. N. and Ripley, B. D. (2002)
*Modern Applied Statistics with S.* Fourth edition. Springer.

[Package

*MASS* version 7.2-23

Index]