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AntevsAntevs is a user friendly professional tool for correlating natural time-series. Time-series arise in situations where a value is measured through time, generally at discrete intervals. Annual intervals commonly occur in natural systems due to seasonal variations in temperature, as displayed in proglacial varves, tree-rings, and glacial ice. Antevs is designed primarily to work with such natural time-series, but can be applied to other discrete time-series as well. Antevs is designed to aid in correlation of time-series, where an undated times-series, the unknown, is compared to a previously dated series, the chronology, to determine if they overlap in time and to date the unknown series. Antevs was developed for the correlation of proglacial varve sequences (Rayburn and Vollmer, 2013), however it includes standard techniques for matching tree-rings, and can convert files between varve and tree-ring formats, such as Tucson decadal files. It includes routines for reading the Velmex UniSlide digital readout used for tree-ring measurements, making it a one step solution for digitizing and correlating tree-rings. A common problem with natural time-series is missing data due to broken or incomplete cores. Antevs includes interactive procedures to correlate sequences that contain such missing values. A sequence can be subdivided into multiple segments which can be interactively shifted while searching for a match. Antevs is designed to be user friendly and easy to use, with powerful analytical tools under the hood. It undergoes extensive testing by varve and tree-ring researchers, including undergraduates working on research projects in John Rayburn's varve and tree-ring laboratory at SUNY New Paltz. Antevs is developed on Macintosh macOS and is compiled natively for Macintosh macOS (with a separate ARM version for newer M1 macs), Windows, and Linux Ubuntu. It is not cross-compiled or interpreted, and does not require any additional libraries or interpreters. Currently most testing is done on macOS 12, Windows 7, and Linux Ubuntu 16. User input is appreciated to improve operation on various platforms. Antevs is written by Frederick W. Vollmer. It is free software, but may not be redistributed or posted online without the author's permission. Any significant usage, such as a resulting presentation or publication, must include attribution to the program and author. This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. Please read the accompanying User Manual file for license and additional information. Example Correlation
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