(Photo © Gigi Cohen)
Dr. Stephen R. Meyers
Vilas Distinguished Professor
Department of Geoscience
Ph.D., Northwestern University, 2003
Paleoclimatology & Paleoceanography, Quantitative Stratigraphy, Sedimentary Geochemistry, Computational Statistics & Data Analysis
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(Photo © Gigi Cohen)
Astrochron is an "open-source"
computational platform for conducting, and learning about:
(1) paleoclimate time series analysis, (2) astronomical time
scale construction, and (3) the statistical integration of astrochronologies with other
geochronologic/chronostratigraphic data (e.g., radioisotopic geochronology).
An ultimate goal of the project is to facilitate efficient and transparent
communication of the analytical approaches used, enabling
rapid verification of results, while fostering science & methodological innovation through community involvement.
Astrochron is written for R,
the free software for statistical computing and graphics.
Since its launch in 2014, Astrochron has grown to include a wide range of statistical tools
for paleoclimate time series analysis, chronostratigraphy and geochronology, including numerous
statistical approaches developed by our research group. Astrochron
also provides an integrated learning environment for instruction on the software — and
the mathematical/statistical concepts that underlie the analyses — through manuals, tutorials and modeling tools.
The software incorporates functions that fall into eight basic categories:
(1) data preparation, (2) spectral analysis, (3) astrochronologic testing and time scale
construction, (4) filtering, (5) data visualization and general R tools,
(6) radioisotope geochronology, (7) modeling and educational tools, (8) other statistical methods.
See these instructions for the installation of R and Astrochron: PDF
See this graphic for a summary of the functions available in Astrochron: PDF
You can find the official CRAN Astrochron manual here: PDF
Page last updated December 14, 2016
Unless otherwise noted, all content © S. Meyers