S {Biodem} | R Documentation |

## Systematic pressure matrix

### Description

Systematic pressure matrix obtained by creating a square matix, where the non diagonal elements are all 0 and the diagonal elements are calculated as 1-Sk, where Sk is the systematic pressure for the k-th population.

### Usage

`data(S)`

### Format

A 12 by 12 square matrix.

### Details

This data comes for Swedlund et al. 1984.

### Source

Swedlund, A. C., L. B. Jorde and J. H. Mielke. 1984. Population structure in the Connecticut valley. I. Marital migration. American Journal of Physical Anthropology 65: 61-70

### Examples

```
data(S)
```

[Package

*Biodem*version 0.5 Index]