Convert cohen's d into r

This function estimates unattenuated correlations using the EM algorithm.

1 |

`data.matrix` |
a matrix where the rows consist of observations and the columns consist of variables |

returns a corrected correlation between the variables

Dustin Fife

See Also as `rel.correction`

to correct the estimate
for unreliability, `caseIV`

, `caseIIIR`

,
`caseIII`

1 2 3 | ```
data(selection.example.data)
corrected.cor.matrix = em(data.matrix(selection.example.data))
corrected.cor.matrix
``` |

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