Release v2.0.2

This is a minor release with incremental improvements made during the review of the script in the Journal of Open Source Software. The following features were added:

• Some tweaks in the plots to make them look better and avoid blank spaces when using Jupyter notebooks
• Improvements in the documentation of some functions.
• Use np.sum() instead of sum() throughout the script for consistency
• The calc_diffstress function indicates the valid names when the piezometer is misspelt

Release v2.0.1

Release Notes

This is a minor release with incremental improvements. The following features were added:

• The find_grain_size function now returns the geometric mean when using a linear scale.
• The calc_diffstress function allows correcting paleostress estimates for plane stress using the correction factor proposed by Behr and Platt (2013).

Release 2.0

Release Notes

This is a major release

• The code has been completely reorganized, some functions added, and most Python functions renamed. GrainSizeTools v2.0 is only compatible with Python 3.5 or higher.

Added:

• New piezometric relations
• Normalized grain size distribution (allowing to use the mean, median, or frequency peak as the normalized factor)
• The two-step method now automatically finds the optimal number of classes to adjust the logarithmic function.
• Other minor additions (see documentation)

Improved:

• The script is now separated in different Python files to facilitate modifications, extension, and for easy bug tracking
• Now the Saltykov and the two-step stereology methods are in separated functions

Release v1.4.5

Release Notes

Fix a problem with labels in the plots

• cosmetic improvements in the figures

Planned features:

• Add more paleopiezometric relations for other phases: ice, salt, alloys, etc.
• A new method to estimate optimal bandwidth and binsizes in multimodal populations

Release v1.4.4

Release Notes

This is a minor release with incremental improvements

• added a new function to estimate reliable confidence intervals
• cosmetic improvements in the figures

Planned features:

• Add more paleopiezometric relations for other phases: ice, salt, alloys, etc.
• A new method to estimate optimal bandwidth and binsizes in multimodal populations

Release v1.4.3

Release Notes

This is a minor release with incremental improvements (mostly cosmetic).

• all matplotlib code is now in oop style
• the script warns you if you are using a data set that is too small
• cosmetic improvements in the figures

Planned features:

• Add more paleopiezometric relations for other phases: ice, salt, alloys, etc.
• A new method to estimate an optimal kde bandwidth in multimodal populations

Release v1.4.2

Release Notes

This is a minor release. The following changes were implemented:

• Added new piezometric relations including:
  • Quartz: Stipp and Tullis (2003) and Holyoke and Kronenberg (2010) for BLG recrystallization
  • Olivine: Van der Wal et al. (1993) and Jung and Karato (2001)
  • Calcite: Rutter (1995) for GBM recrystallization
  • Albite: Post and Tullis (1999)
• Improvements in the function specifications

Planned features:

• Add more paleopiezometric relations for other phases: ice, salt, alloys, etc.
• A new method to estimate an optimal kde bandwidth in m

Release v1.4.1

Release Notes

This is a minor release. The following change was implemented:

• Added a new function to estimate differential stress in calcite using the Rutter (1995) paleopiezometer

Planned features (v1.4):

• Add more paleopiezometric relations for other phases: olivine, calcite, ice, alloys, etc.
• A new method to estimate an optimal kde bandwidth in m

Release v1.4

Release Notes

This is a major release. The following changes were implemented:

• Added a new function to estimate differential stress in quartz via paleopiezometric relations

Planned features (v1.4):

• Add paleopiezometric relations for other phases: olivine, calcite, ice, alloys, etc.
• A new method to estimate an optimal kde bandwidth in multimodal population

Release v1.3.4

Release Notes

This is a minor release. The following changes were implemented:

• The 'extract_areas' function now can open excel (.xlsx) files.
• Improvements in the format of the function documentation strings.

Planned features (v1.4):

• Estimate differential stress from grain size using different paleopizometric relations
• A new method to estimate an optimal kde bandwidth in multimodal populations.
• A new method to estimate a safe bin size (or number of classes) when using the Saltykov method.