prewhiteAR1 {astrochron} | R Documentation |

## Prewhiten stratigraphic series with AR1 filter, using 'standard' or unbiased estimate of rho

### Description

Prewhiten stratigraphic series using autoregressive-1 (AR1) filter. Rho can be estimated using the 'standard' approach, or following a bias correction.

### Usage

```
prewhiteAR1(dat,setrho=NULL,bias=F,genplot=T,verbose=T)
```

### Arguments

`dat` |
Stratigraphic series for prewhitening. First column should be location (e.g., depth), second column should be data value for prewhitening. Series must have uniform sampling interval. |

`setrho` |
Specified lag-1 correlation coefficient (rho). By default, rho is calculated. |

`bias` |
Calculate unbiased estimate of rho, as in Mudelsee (2010, eq. 2.45). (T or F) |

`genplot` |
Generate summary plots? (T or F) |

`verbose` |
Verbose output? (T or F) |

### References

M. Mudelsee, 2010,
*Climate Time Series Analysis: Classical Statistical and Bootstrap Methods*, 474 pp., Springer, Dordrecht, Netherlands.

### See Also

`arcsinT`

, `bandpass`

, `demean`

, `detrend`

, `divTrend`

, `logT`

, `lowpass`

, `noKernel`

, and `prewhiteAR`

*astrochron*version 1.3 Index]