Description Usage Arguments Details Value Author(s) Examples

Z-transforms observations of a time series or centers observations of a time series to the mean.

1 |

`x` |
vector of observations. Missing values are allowed. |

`ctype` |
the type of transformation. 1 = Z transform ((x - mean x)/ sd x); 2 = center (x - mean x). Default = 1 |

Z-transforms observations of a time series or centers observations of a time series to the mean.

vector containing the transformed time series.

Gary A. Nelson, Massachusetts Division of Marine Fisheries gary.nelson@state.ma.us

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