8. Changelog

8.1. Version 2018.9.19

  • No external files needed for SIR

  • Coupling of parameters

  • Use other optimization algorithms

  • Check that initial parameters are inside the range if not inverted

  • Masks

  • Save chi2 for each cycle

  • Comment on virtual environments

  • Explain better how atmospheres are defined in Hazel

  • Randomization

  • Error bars

  • Allow to invert magnetic fields in the LOS or vertical reference frames

  • Instrumental profile

  • More tests added

  • Output AIC and BIC

8.2. Version 2018.9.22

  • Elapsed time per pixel is now part of the standard output when doing multipixel inversions

  • Pixels with numerical problems during inversion are now ignored.

  • A set of tools for generating observations and model atmospheres for input have been developed.

8.3. To do

  • Add even more tests (avoid warnings)

  • Sparse regularization of maps : change order of loops -> 1 LM (x,y) -> regularization

  • Regularization of parameters

  • In synthesis, all atmospheres have to have the same number of pixels

  • Add utilities for generating new SIR models

  • Show an example for inverting a random distribution of points to be inverted and then start from an interpolation of these maps to be closer to the solution

  • Develop tools to easily manage input/output models so that multiinversions are easy to do.

  • Check that output and input models are compatible so that reinversions can be easily done

  • Precalculate coefficients for the emission/absorption coefficients using sparse matrices and use them later on the calculation. This will avoid many of the loops that are, by construction, zero.

  • Programmatic inversions