clgplot reads two types of file: raw isothermal remanent magnetization (IRM) acquisition data (as a two-column file containing applied field and measured magnetization), and output files from the IrmUnmix program [1] which contain a representation of IRM acquisition data as a sum of cumulative log-Gaussian (CLG) curves. clgplot produces a plot of the data and/or curves using pyplot. The plot can be viewed on-screen and saved to a file.
clgplot also calculates and prints H'cr, the applied field which produces a remanent magnetization half as intense as the saturation remanent magnetization. For this calculation, the maximum magnetization value in the input file is assumed to be the saturation remanent magnetization.
If run with no arguments, clgplot starts in GUI mode. Various options
for command-line usage are also available; supplying the -h or
--help argument will detail the available command-line arguments.
clgplot is copyright 2012 by Pontus Lurcock (pont -at- talvi -dot- net) and released under the MIT license (see source code for full license text).
[1] See http://www.geo.uu.nl/~forth/Software/irmunmix/ and http://dx.doi.org/10.1046/j.0956-540x.2001.01558.x