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PetroPlot: A plotting and data management tool set for Microsoft Excel
 

Summary: PetroPlot: A plotting and data management tool
set for Microsoft Excel
Yongjun Su and Charles H. Langmuir
Department of Earth and Environmental Sciences, Columbia University, Palisades, New York, 10964, USA
(ysu@ldeo.columbia.edu)
Paul D. Asimow
Division of Geological and Planetary Sciences, California Institute of Technology, M/C 170-25, Pasadena, California,
91125, USA
[1] PetroPlot is a 4000-line software code written in Visual Basic for the spreadsheet program Excel that
automates plotting and data management tasks for large amount of data. The major plotting functions
include: automation of large numbers of multiseries XY plots; normalized diagrams (e.g., spider diagrams);
replotting of any complex formatted diagram with multiple series for any other axis parameters; addition of
customized labels for individual data points; and labeling flexible log scale axes. Other functions include:
assignment of groups for samples based on multiple customized criteria; removal of nonnumeric values;
calculation of averages/standard deviations; calculation of correlation matrices; deletion of nonconsecutive
rows; and compilation of multiple rows of data for a single sample to single rows appropriate for plotting.
A cubic spline function permits curve fitting to complex time series, and comparison of data to the fits. For
users of Excel, PetroPlot increases efficiency of data manipulation and visualization by orders of
magnitude and allows exploration of large data sets that would not be possible making plots individually.
The source codes are open to all users.

  

Source: Asimow, Paul D. - Division of Geological and Planetary Sciences, California Institute of Technology,
Langmuir, Charles H. - Department of Earth and Planetary Sciences, Harvard University

 

Collections: Geosciences