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changelog.txt
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v1.4.7:
- made the goodness-of-fit in orbit_fitter an actual chi-squared
- fixed type mismatch in coords.pole_rotation_inv
- added timestep.get_bound_mass()
- added timestep.check_for_incest()
- edited github readme
- split_at_id_wrap works again for new Nbody formatting, added a toggle for user-inputted
values for backwards compatability
- added plot.scatter_multiple() to plot lists of timesteps (like those made by split_at_id_wrap)
- added a few paper&stream-specific transformations (gal_to_lambet_newberg2010(),
lambet_to_gal_newberg2010(), and eq_to_OC_koposov2019())
v1.4.6: (BUG FIX)
- the reverse orbit in orbit_fitter.get_OrbitData_from_orbit() was using the forwards
orbit to calculate vgsr. Fixed
- timestep.only_dark_matter() had a typo that made it identical to only_baryons(). Fixed
- did some refactoring of orbit_fitter to make it easier to read and more consistent with
things like changing the timestep and potential
v1.4.5: (MINOR PATCH)
- fixed bug where orbit fitter plots would use the mwahpy default potential even
if another was provided
- output_handler.read_output() now works for files with the <bodies> </bodies> tags format
- changed name of sky_to_pole() to pole_rotation(), because it was confusing.
sky_to_pole() is now an alias for pole_rotation() and causes a DeprecationWarning
- added pole_rotation_inv() function
- timestep.scatter() now has a 'cbar' keyword to turn on a colorbar & shade particles appropriately
- improved how .coords was checking types
- added eq_to_OC() transformation from ra/dec to Orphan-Chenab lambda/beta,
and OC_to_eq() inverse transformation
v1.4.4: (MINOR PATCH)
- orbit_fitter gradient descent now uses Nelder-Mead optimizer by default, BFGS
was terminating the optimization early
- fixed bug in calc_self_energies where KE was 2x as large as it should be
- added ability to change galaxy potential in orbit_fitter.py
v1.4.3: (BUG FIX)
- fixed some typos that would prevent the package from initializing correctly
- fixed plot.hist()
- fixed print_particle()
- calc_rvpm() was adding an additional unnecessary (unsupported) key to the
timestep object
- made timestep.recenter() and timestep.update() more verbose
- warnings are now printed, not raised as errors
- typos in plot.fancy_plot()
- fixed incorrect sizing of plot.fancy_plot()
v1.4.2: (MINOR PATCH)
- Now using python's built-in Warning class instead of manually checking flags
and printing warning statements
- orbit_fitter and orbit_fitter_gc now have two modes: 'de' (differential evolution)
and 'gd' (gradient descent). Mode 'de' requires bounds, and mode 'gd' requires
an initial guess. These are selected with the 'mode' keyword in
orbit_fitter.fit_orbit() and orbit_fitter_gc.fit_orbit().
- the phase space coordinates of the Sun are now a PhaseSpace class, which can be
updated throughout the package with mwahpy_glob.solar_ps.update(<[x, y, z, vx, vy, vz]>).
To access the x velocity of the phase space coordinate, for example, you now use
mwahpy_glob.solar_ps.vx.
v1.4.1:
MAJOR CHANGES:
- now require python v3.6.0 or above due to installation problems with older
versions of python.
- fixed bug in orbit_fitter and orbit_fitter_gc where using numpy arrays for
velocity data would not properly set flags, but lists would crash the program
- progress bars do not show up in jupyter notebooks now, to prevent lagging out
the client
- global flags are now instances of the Flag class (located in flags.py), which
can be switched on or off globally with "myflag.switch(<bool>)". They can still
be treated with default boolean comparisons, e.g. "if myflag:".
MINOR CHANGES:
- phase space of the Sun is now a constant in mwahpy_glob and should be accessed
from there instead of hard-coded
- added fancy_plot() in .plot, can call as timestep.fancy_plot(<...>)
- changed coords.rv_to_vgsr() to coords.vlos_to_vgsr() (trying to avoid overloading
"radial velocity")
- added coords.vgsr_to_vlos()
- didn't need to be importing or utilizing sys
BUG FIXES:
- fixed divide-by-zero error in timestep.get_self_energies()
- fixed bug in coords.rot_around_arb_axis() that was slowing it down slightly
- fixed bug in output_handler.read_output() where the progress bar would not
go from 0 to 100% if the 'stop' keyword was used
- coords.remove_sol_mot_from_pm() no longer modifies the pmra and pmdec input
arrays in place
v1.4.0:
- renamed orbit_fitting and orbit_fitting_gc to orbit_fitter and orbit_fitter_gc
- refactored and fixed orbit_fitter
- added documentation for orbit_fitter and orbit_fitter_gc
- added documentation for changes since v1.3.5
- functions that were re-used between orbit_fitter and orbit_fitter_gc are now
all located in orbit_fitter
- it's not really a chi-squared, so now it's just a goodness-of-fit in the orbit
fitting packages
v1.3.8:
- refactored and fixed orbit_fitting_gc
- better way to do coords.cart_to_plane()
- added coords.cart_to_lonlat()
- coords.gal_to_lambet() and coords.cart_to_lambet() now use coords.cart_to_lonlat()
in the background as abstraction
- added coords.gal_to_lambet_galcentric(), will probably be deprecated soon in
order to clarify coordinate systems
v1.3.7:
- Fixed sign of Ly
- added start and stop keywords to output_handler.read_output()
v1.3.6:
- fixed sky_to_pole() tests and a couple other tests
- fixed a bug with output_handler.make_nbody_input() not writing '\n' at end of file
v1.3.5:
- sky_to_pole() now uses a change of basis matrix instead of vector math
- fixed bugs with mismatches of Timestep.index_list after extra calculations
- Timestep.id is now an array of ints, not floats
- added Timestep.take_by_id()
- output_handler.make_nbody_input() now properly handles the 'recenter' keyword argument
- output_handler.make_nbody_input() pads now floats correctly
- updated README
- Timestep.typ is now a list of ints, not floats
v1.3.4:
- Timestep.typ attribute stores whether particles are baryons (0) or dark matter (1)
- output_handler has been updated to also read in particle type
- Timestep.only_baryons() and Timestep_only_dark_matter() cut the data to only
include one type of particle
- Added support for galactic spherical coordinates (phi, theta)
- Added find_progenitor()
- make_nbody_input() no longer recenters the Timestep before printing out
- fixed 'self not defined' error in output_handler.make_csv()
- Timestep.rad and Timestep.rot are now Timestep.vrad and Timestep.vrot
- updated documentation pdf to new naming convention
- updated documentation to include all supported functions
- updated README
- removed coords.approx_lsr()
v1.3.3:
- added changelog
- fixed bug in Timestep.copy() that would cause error if the Timestep had calculated values
- adapted python standard naming convention (mostly, method names went from camelCase to lower_case)
- consolidated coords.py tests into tests.py
- bug fix in coords.cart_to_plane()
- fixed import scheme