# Calculate the SEA based on a posterior distribution of Sigma

### Description

This function loops over each posterior draw of a single group's
Bayesian bivariate ellipse and calculates the Standard Ellipse Area (SEA)
for each draw, thereby generating a distribution of SEA esimates. Not
intended for direct calling outside of `siberEllipses`

.

### Usage

1 | ```
posteriorSEA(post)
``` |

### Arguments

`post` |
a matrix of postior covariance matrix and mean estimates for a
bivariate ellipse. In SIBER, this is typically one list element of the
object returned by |

### Value

A vector of posterior Bayesian Standard Ellipse Areas (SEA_B)