:orphan: .. _changelog: Changelog ######### `[v0.6.9] `__ - 2026-05-28 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - The methods in the ``Membership`` class can be applied from the ``Cluster`` class - Added the ``Membership.select_members()`` method to filter a ``Cluster`` object by membership probabilities `[v0.6.8] `__ - 2026-05-23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Improved performance of ``Synthetic.generate() + Likelihood.get()`` by ~15%: - Improved performance of ``Likelihood.get()`` by ~50% - Modified (z, loga) interpolation (from inverse weight to bilinear) and improved performance of ``zaWAverage()`` by ~30% - Slight performance improvement of ``GAIADR3`` extinction law - Allow calling ``Synthetic.generate()`` with no dictionary of parameters (empty default) `[v0.6.7] `__ - 2026-05-13 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Improved performance of ``Synthetic.generate()`` method by ~12% - Read extra columns from UCC members file (Rv, e_Rv, probs) - Fixed a bug with the ``properModel()`` function and the ``(met, age)`` values at the lower edges. Also added range checking - Changed ``parsec_rm_stage_9`` flag in ``Isochrones`` class to ``parsec_rm_stages`` - Added a mask to filter out bad values (``999.999``) from PARSEC new isochrones - Added ``max_mag_perc`` to filter by magnitude percentile in ``Cluster`` class `[v0.6.6] `__ - 2026-04-25 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Remove ``pandas`` dependency `[v0.6.5] `__ - 2026-04-24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Method ``stellar_masses()`` is now ``stellar_parameters()`` - Added blue straggler probability estimation to ``stellar_parameters()`` - Removed ``binary_fraction()`` Monte Carlo method, not required [v0.6.4] - 2026-04-24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Bad build (missing ``pandas`` dependency) `[v0.6.3] `__ - 2026-02-18 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Improved performance by ~22% - Synthetic module: improved ``generate()`` performance by ~20% - Likelihood module: improved ``tremmel()`` performance by ~30% - Cluster module: - Added arguments to allow loading a cluster's data from the `UCC members file `__ (.parquet) - Added ``max_mag`` attribute to apply a maximum magnitude cut - Changed ``magnitude`` attribute to ``mag`` (Cluster, Isochrone, Synthetic classes) `[v0.6.2] `__ - 2026-02-14 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Likelihood module: - Better ``tremmel`` likelihood, now it zooms in to the solution faster - Replaced ``loggamma`` with ``gammaln`` from ``scipy.special`` since values are always real (no change in performance) - Membership module: - Moved ``first_filter()`` out of `fastMP` to be used also by the Ripley members estimator - Changed default value for ``fixed_centers`` in ``fastMP()`` to ``True`` - Removed iterative IQR normalization in ``fastMP()``; it caused issues for some OCs that ended up looking stretched out in the LON/LAT axis - Cluster module: - Make ``(RA, DEC)`` optional when defining a cluster object; request the center coordinates in the ``synthetic.cluster_masses()`` method - New ``N_clust_max=2000`` (down from ``5000``) - Added a ``local_dens_clean()`` function to the Ripley estimator of members for better performance `[v0.6.1] `__ - 2025-04-28 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Isochrones module: - Fixed improper MIST isochrone generation (https://github.com/asteca/ASteCA/issues/569) via EEP (Equivalent Evolutionary Point) interpolation - Changed to per-isochrone mass based interpolation for other services - Documentation & Code Structure: - Fixed LaTeX rendering issues - Added umami tracker (https://github.com/asteca/ASteCA/issues/571) `[v0.6.0] `__ - 2025-04-15 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Downgraded the versions of almost all the required packages to play nice with Google Colab (again) - Faster import of ``asteca``, using lazy imports in classes (https://github.com/asteca/ASteCA/issues/564); removed the ``plot`` class, removed ``pandas`` and ``matplotlib`` as dependencies - Allow generating synthetic clusters without calibrating an observed cluster (https://github.com/asteca/ASteCA/issues/565>) - Remove ``fix_params`` parameter from ``synthetic.calibrate()`` - Major changes to the documentation - Small performance improvements in the generation of synthetic cluster (zaWAverage function) `[v0.5.9] `__ - 2025-01-24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Fix issue with BASTI isochrones that would store ages out of order - Upgrade versions, Google Colab will most likely not work due to running older versions of Python and the required packages. - Remove new version checker https://github.com/asteca/ASteCA/issues/560 - Many type hints added to the codebase `[v0.5.8] `__ - 2024-08-09 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Downgraded the versions of almost all the required packages to play nice with Google Colab - Fix ``AttributeError: ptp was removed from the ndarray class in NumPy 2.0. Use np.ptp(arr, ...) instead.`` for newer versions of `numpy` - Allow ``isochrones`` to load single files, not just paths to folders - Added an update notifier to ``__init__.py`` (added ``requests`` as requirement) `[v0.5.7] `__ - 2024-07-31 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Faster (and cleaner) :py:meth:`asteca.membership.Membership.fastmp` and :py:meth:`asteca.membership.Membership.bayesian` - Change the normalization constant used in ``fastmp`` (from 2*median to IQR) - Add ``kde_2d`` method to :py:meth:`asteca.cluster.Cluster.get_center` - Fix ``knn_5d`` method to better handle large frames - Minor fixes to center and total masses estimation `[v0.5.6] `__ - 2024-06-25 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Simpler error distribution function - Convert `dataclass` to `class` (simpler API documentation) `[v0.5.5] `__ - 2024-06-21 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Add :py:meth:`asteca.membership.Membership.bayesian` method decontamination algorithm - Move plot functions to its own module - Removed ``masses_binary_probs`` method from the :py:class:`asteca.synthetic.Synthetic` class and added the methods: :py:meth:`asteca.synthetic.Synthetic.get_models`, :py:meth:`asteca.synthetic.Synthetic.stellar_masses`, :py:meth:`asteca.synthetic.Synthetic.binary_fraction`, :py:meth:`asteca.synthetic.Synthetic.cluster_masses`, to estimate individual masses, total binarity fraction, and total masses - Added the :py:meth:`asteca.cluster.Cluster.get_nmembers` method to estimate the number of members for a cluster embedded in a field. `[v0.5.4] `__ - 2024-05-26 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Fix small issue with documentation in v0.5.3 `[v0.5.3] `__ - 2024-05-26 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Added the :py:meth:`asteca.membership.Membership.fastmp` method - Added the :py:meth:`asteca.cluster.Cluster.get_center` method `[v0.5.2] `__ - 2024-05-07 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Re-wrote isochrones reading module. See :ref:`isochrones_module`. - Added `Gaia (E)DR3 extinction law `_. See :ref:`synthetic_module`. - Downgrade requirements to ``python=3.10`` to allow running in default Google Colab - Fixed wrong masses and binary probabilities being assigned to stars with missing photometric data - Fixed bug in :class:`likelihood` when two colors were defined - Move ``z_to_FeH`` argument from :class:`synthetic` to :class:`isochrones` - Remove ``min_max()`` method from :class:`synthetic`, values are now shown when instantiating an :class:`isochrones` class - Allow plotting two colors in :class:`cluster` and :class:`synthetic` plotting modules `[v0.5.1] `__ - 2024-04-19 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Skip hidden files when reading isochrones (https://github.com/asteca/ASteCA/issues/551) `[v0.5.0] `__ - 2024-04-18 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Major update. **ASteCA** is now a proper Python package that can be installed with `pip install asteca`. Some of the most important changes are: - Added support for MIST and Basti isochrones, in addition to PARSEC - No longer depends on `ptemcee `_, now the user can employ any package to perform the parameter inference - Updated binary systems generation - Removed structural analysis function (for now at least) [v0.4.4-0.4.9] ++++++++++++++ These version numbers were skipped due to the major changes introduced in version ``0.5.0``. `[v0.4.3] `__ - 2022-06-01 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ This is a large update mostly on the synthetic cluster generation process. Two extra free fundamental parameters are added: differential reddening and the ratio of total to selective absorption. - Fit Av instead of E(B-V) (`544 `__) - Clean up before releasing 0.4.3 (`541 `__) - Change the 'completeness' function (`540 `__) - Structural analysis consumes too much memory for large fields (`539 `__) - Remove mass parameter (`538 `__) - Use pandas to read cluster data (`537 `__) - Remove complete/incomplete codebase + simplify get_data() (`533 `__) - Change several input parameters (`532 `__) - Fix King profile fit (`529 `__) - Add a flag to turn completeness on/off (`528 `__) - Make the lower mass limits input parameters (`526 `__) - Remove (RA, DE) transformation, RV mentions, trim frame, error rejection (`524 `__) - Optimal radius estimation fails for some clusters (`521 `__) - Gap in the synthetic cluster (`519 `__) - DA 'read' mode: read from column (match with pyUPMASK) (`518 `__) - Simplify Bayesian parallax inference (`516 `__) - Per cluster fundamental parameters range (`514 `__) - Revise default parallax offset following eDR3 release (`501 `__) - Generalize mass-ratio distribution for binaries using a power law (`496 `__) - Output of cluster memberships is very slow for large clusters (`437 `__) - Generate finding chart plot (`210 `__) - Probability density for binary assignment (`198 `__) - Differential reddening (`174 `__) - Make extinction parameter Rv a free parameter (`170 `__) `[v0.4.2] `__ - 2021-05-10 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Fixed two issues: don't read hidden files from the ``input/`` folder, remove forgotten parameter that was removed in the previous release. `[v0.4.1] `__ - 2021-05-05 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Fixed estimated optimal radius that was too large (`513 `__) - Deprecate pixel coordinate support (`509 `__) - Coordinates density map shows artifact in corners (`511 `__) - Split A-D test into one test per feature (`477 `__) `[v0.4.0] `__ - 2021-05-03 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Compensate cluster’s mass for binaries masses? (`488 `__) - Estimate individual per-star masses (`484 `__) - Improve performance of synth cluster generation (3) (`506 `__) - Simplify isochrones download/handling (`497 `__) - Add CS 37 COLIBRI track + deprecate old versions 10 & 11 of PARSEC (`495 `__) - Optimal radius too large for some clusters (`510 `__) - Project equatorial coordinates before processing (`237 `__) - Add eccentricity parameter to KP fit? (`480 `__) - Finish working on enhanced King profile fitting (`456 `__) - Remove KDE_stds and mp_flag parameters (`500 `__) - Simplify input of structure parameters (`512 `__) - Deprecate all likelihoods except Tremmel (`507 `__) - Interpolate IMF masses into the isochrones, not the other way around (`503 `__) - Add minimum binary mass ratio to fundamental parameters? (`504 `__) - Deprecate Anderson-Darling test (`499 `__) - Deprecate “Read mode” (`498 `__) - Add IMF and PMF curves obtention (`96 `__) - Convert pixel coordinates to RA & DEC (`203 `__) - Add ZAMS to CMD final plot (`160 `__) - Add semi_input.dat checking to checker (`214 `__) - Add weighted spatial density map (`167 `__) - Generate output CMD-CCD plots for the mean+median+mode (`479 `__) - Exact circle area using geometry instead of Monte Carlo (`446 `__) - Use the maximum number of members in the optimal radius? (`494 `__) - Add 1-sigma region to King profile (`478 `__) - Turn off MP coloring in D2 plots for binned likelihoods (`473 `__) `[v0.3.1] `__ - 2020-06-19 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Only the ``ptemcee`` method is kept, all others are now deprecated. - Corrected an error in the ``CMD_systs.dat`` file (`468 `__) - `Fixed path `__ for ``CMD_systs.dat``, now works in Windows (and Mac?) - Control (some) plotting parameters through custom style and allow the selection of one of the supported styles (`464 `__) - Dump the results of the fundamental parameters analysis to file (`467 `__) - Closed several issues related to the deprecated bootstrap(+GA), brute force, and emcee methods (`265 `__, `280 `__, `284 `__, `324 `__, `341 `__, `347 `__, `418 `__, `442 `__, `447 `__) - Split D1 plots (MCMC convergence diagnostics plots & values) (`389 `__) - Explore Zeus as a possible addition to the best fit process (`457 `__) - Add mode, median to King’s profile plot (`470 `__) - Make “trim frame” option per cluster (`474 `__) - Closed due to old or not applicable (`209 `__, `293 `__, `399 `__) `[v0.3.0] `__ - 2020-04-22 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Massive changes introduced in this new version. Python 2.7.x is no longer supported. - Port to Python 3 (`243 `__) - Upgrade to ``emcee`` v3.0.2 (`423 `__) - Add ``emcee`` to the best fit process (`193 `__) - Upgraded to ``astropy`` v0.0.4 - Remove (z,a) steps (`413 `__) - Bug fix: binary probabilities should not be averaged by ``zaWAverage`` (`462 `__) - Add Tremmel’s implementation of the PLR (`447 `__) - Improve performance of synthetic cluster generation (`445 `__) - Fix Tolstoy likelihood accounting for uncertainties twice (`406 `__) - Add option to apply ’pmRA*cos(DE)’ correction (`452 `__) - Added ``optm`` method to local removal of stars (`432 `__) - Added ``manual`` binning method to likelihood block (`325 `__) - New radius estimating method and many improvements to structural functions (RDP, field dens, radius) (`454 `__, `449 `__, `346 `__, `378 `__) - Added maximum likelihood method for fitting King profiles (`268 `__, `298 `__) - Allow seeding the synthetic cluster generation process (`196 `__) - Add stopping condition to the plotting line (`443 `__) - Add Nsigma region to the best fit synthetic cluster (`460 `__) - Fix small bug in radii arrows (`182 `__) `[v0.2.7] `__ - 2019-10-03 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Use inverse transform sampling to sample the IMF (`434 `__) - Interpolation of (z,a) values uses wrong m_ini index (`440 `__) - Interpolation of isochrone fails when (z,a) are both fixed (`439 `__) - Mass ‘alignment’ in zaInterp() gives poor result (`441 `__) - Select the N_mass_interp number automatically (`438 `__) `[v0.2.6] `__ - 2019-09-19 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Fix normalization in Bayesian DA (`426 `__) - Fix function to detect X11 that fails in Mac OS (Windows too?) (`428 `__) - Merge ``semi_input.dat`` file into ``params_input.dat`` and copy input file as output (`427 `__) - Remove modes (`429 `__) - Use one photometric systems file instead of two identical ones (`421 `__) - Fix Ext/Imm operator causing spurious points in the GA (`424 `__) `[v0.2.5] `__ - 2019-08-07 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Added the ``ptemcee`` method, and deprecated (for now) the BF (`367 `__) - Accept a CMD/CCD from mixed photometric systems (`228 `__, `229 `__) - Add support for the new set of isochrones PARSEC+COLIBRI (`322 `__) - Output all information obtained from the bootstrap (`279 `__) - Mask stars with photometry outside of reasonable range (`414 `__) - Add proper motions, parallax, and radial velocity support to Bayesian DA (`220 `__) - Use stars with no complete data in the Bayesian equation (`377 `__). - Add dimensional `weights to Bayesian DA `__. - Use all positions for structural functions (`107 `__). - Make the bootstrap the actual method (instead of GA) (`64 `__) - Make the GA work with floats instead of a grid (`412 `__) - Plot the incomplete dataset with MPs information (`411 `__) - Use a total number of masses, not a step value (`410 `__) - Use stars after error rejection for LF & completeness (`390 `__) - Switch to astropy’s read module (`327 `__) and allow `reading columns by name `__. - Update check for `installed packages `__ (newer ``pip`` threw an error). - Added a 2D cluster vs field KDE comparison, and the A-D test (`255 `__, `356 `__) - Added MAP, median and mode to output parameters. - Added R2 normality estimator to distributions (`401 `__) - Deprecated `KDE p-value function `__. - Deprecated ``trim_frame``, and ``manual`` `mode in photometric error rejection `__. - Deprecated `integrated magnitude function `__. - Store input parameters as .json for each cluster (`126 `__) - Don’t read hidden files from the ‘isochrones’ folder (`403 `__) - Use KDE instead of Gaussian filters (`379 `__) - Split C2 plot into C2 and C3 `[v0.2.4] `__ - 2018-03-16 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Extend support for up to two colors. - Improved performance (`#357 `__): - Make mass sampling optional (`#373 `__) - Move binarity assignment outside of the synthetic cluster generation. - Move isochrone sorting outside of the synthetic cluster generation. - Move random floats for photometric errors outside of the synthetic cluster generation. - Move random floats for completeness outside of the synthetic cluster generation. Code is now ~3.3X faster `[v0.2.3] `__ - 2017-09-23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Improved performance of synthetic cluster generation (`#227 `__). Code is now ~4X faster. - Fix excessive use of memory by Rbf interpolation (`#350 `__) - Use equal bin widths in LF and completeness function (`#300 `__) - Faster star separation by errors (`#351 `__) - Generalize Bayesian DA to N-dimensions, fix statistical issues, improve performance (`#352 `__) `[v0.2.2] `__ - 2017-08-29 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Add weights to binned likelihood (`#216 `__) - Fix `bug in progress bar `__. - Identify binaries in `plotted HR diagram `__. - Modify the information presented by the `2-parameters density plots `__. Takes care of `#71 `__. - Smarter empty field region around cluster region (`#345 `__). - Detect stars with duplicate IDs in data file (`#212 `__). `[v0.2.1] `__ - 2017-08-11 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Fix issue with ‘tolstoy’ likelihood estimation (`#340 `__) - Fix a couple of issues with the error curve fitting (`#338 `__) - Add ‘fixed’ MPs algorithm (useful when no field region is available) (`#326 `__) - Fix crash when obtaining error curve (`#256 `__) `[v0.2.0] `__ - 2017-08-07 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Generalized code to accept an arbitrary CMD in any *single* photometric system supported by the `CMD service `__ (`#24 `__). - Identify binary systems in synthetic clusters (`#199 `__). - Plots are now produced per blocks, instead of all together at the end (`#271 `__) - Switch dependency requirement from astroML to astropy (`#303 `__). - Remove unused error rejection modes (`#331 `__) - Simplify params_input.dat file (`#217 `__) - Check that all metallicity files contain the same number of age values (`#218 `__) - Add density maps analysis for center function (`#164 `__) - Remove weight added to the observed cluster CMD’s histogram (`#308 `__) - Fix bad parameter rounding (`#248 `__) - Add ‘max mag’ cut for synthetic clusters (`#302 `__, `#264 `__) - Simplify installation steps (`#88 `__, `#315 `__) - Plot results of brute force minimization (`#100 `__) - Make extinction parameter Rv a manual input parameter (`#314 `__) - Use numpy’s binning methods (`#317 `__) - Modify RDP limit (`#294 `__) - Store extra data from theoretical isochrones (`#201 `__) `[v0.1.9.5] `__ - 2016-08-07 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Remove forgotten print line. - Print relevant information when data con not be read (`#262 `__). - Fix bad range issue (`#226 `__). `[v0.1.9.4] `__ - 2016-07-25 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Add support for five tracks from the CMD service (`#276 `__). - Read metallicity files with underscores instead of decimal dots (`#277 `__). - Several important structural changes (`#273 `__): add ``first_run`` check, re-arrange and re-name modules, and move almost every part of the code into the ``packages/`` folder. `[v0.1.9.3] `__ - 2016-05-25 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Add support for CMD in the `HST/ACS WFC photometric system `__ (requested by Daniel Arbelaez). `[v0.1.9.2] `__ - 2016-04-17 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Add support for three CMDs in the `Strömgren photometric system `__ (requested by J. Hughes Clark). - Change likelihood density plots to `scatter plots `__ which show more information. - Add extra condition for DA break: minimum 10% of the runs `must have passed `__. - Fix bug with `‘mag’ mode `__ in ‘Reduced membership’, wouldn’t run if the Bayesian DA was skipped. - Fix minor bug (`#241 `__) when `printing KP results to screen `__. `[v0.1.9.1] `__ - 2015-08-25 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Fixed rounding of errors that returned 0. values if error was larger than value (`#213 `__). - Check if ``pip`` module is installed + search for installed packages `globally, not locally `__. - Catch `badly formatted `__ input data file. - Restructure `King radii obtention `__. - `Correctly plot stars `__ in cluster region, not used in best fit function. `[v0.1.9] `__ - 2015-06-18 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ (**Warning**: this release breaks compatibility with the previous version of the ``params_input.dat`` & ``semi_input.dat`` files) - Models (ie: isochrone + extinction +distance modulus + mass distribution + binarity) are now evaluated *each time the GA selects them as a solution*, thus a new mass distribution is generated (`#186 `__). This has a performance cost, but provides higher accuracy in the best model assignment process since a single model can now be evaluated with a slightly different mass distribution several times (only with GA, *Brute Force* method will only process a model once). - Added an *exit switch* to the decontamination algorithm. It will stop iterations if the MPs converged to 0.1% tolerance values for all the stars in the cluster region (compared to the previous iteration). This speeds up the function considerably (`#185 `__). - The upper mass value in the IMF can now be `modified via the input parameters file `__. - Code can now read ``params_input_XX.dat`` files when `using lazy parallelization `__. - Number of field regions `can now be set individually `__ via the ``semi_input.dat`` file. - `Added ‘bb’ binning method `__ based on `Bonnato & Bica (2007) `__. Sets bin widths of 0.25 and 0.5 for colors and magnitudes respectively. - Fixed bug in ``manual`` mode when `displaying errors `__. - Fixed bug when narrow frames were plotted (`#168 `__). - Moved text box outside of synthetic cluster’s plot to improve its visibility (`#205 `__). - Closed `#13 `__. Saha’s W likelihood needs the number of model points to be fixed, which prevents it from being used when the mass varies. There’s nothing to be gained by adding this function. - Caveat dragged from version `0.1.2 `__ is `resolved `__. `[v0.1.8] `__ - 2015-04-09 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ (**Warning**: this release breaks compatibility with the previous version of the ``params_input.dat`` file) - Added ``local`` and ``mp_05`` methods to the selection of which stars to use in the best fit cluster parameter assignation process (`#180 `__, `#183 `__). - Added an *automatic update checker* function that notifies the user if an updated version of ``ASteCA`` is available for download (`#179 `__). - Added grid lines over the photometric diagrams of the observed and synthetic cluster, showing the binning made by the method selected in each case (`#131 `__). - Best fit synthetic cluster found is now saved to file (`#154 `__). - Correctly obtain approximate number of members (``n_memb``) and contamination index (``CI``) when the cluster radius extends beyond the RDP, thus making the field star density value (``field_dens``) unreliable (`#111 `__). - Added ``f10`` flag to alert when the ``memb_par`` value is greater than +-0.33, which means that there are twice as many estimated true members in either method (`#175 `__). - Improved ``top_tiers`` plotting and saved file (`#184 `__). **Caveats** - Same as version `0.1.2 `__. `[v0.1.7] `__ - 2015-03-26 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ (**Warning**: this release breaks compatibility with the previous version of the ``params_input.dat`` file) - Re-write ``lowexp`` `error rejection method `__, now uses *prediction bands* instead of *confidence intervals*. - Force ``matplotlib``\ ’s backend to make the code `work in servers `__. - Fixed ``eyefit`` method for `error rejection `__. It changed after fixing `#169 `__. - Added `SDSS CMDs `__ ``g vs (u-g)`` & ``g vs (g-r)``, at the request of Tjibaria Pijloo (Department of Astrophysics, Radboud University Nijmegen). - Fixed bug in binarity generation for the CMDs of the form ``X vs (X-Y)`` (`#181 `__). - Smarter selection of stars to be used by the best fit function, improvements in several plots (`#171 `__, `#172 `__). - Best fit function can now accept a *minimum magnitude* value instead of just a *minimum probability* value (`#115 `__). - Added a ``memb_par`` parameter to compare the number of approximate cluster members obtained via the structural analysis and via the decontamination algorithm (`#162 `__). - Code is now able to correctly read the names of files with `more than one dot in it’s name `__. - Fixed bad `alphabetical ordering `__ of input cluster files. - Better limits for photometric diagram (`#173 `__). - Fixed ``DeprecationWarning`` `issue `__. - Invert x axis when `RA cords are used `__ (improved `here `__). - Several fixes and improvements made to plotted diagrams (`5c7dc7f `__; `1642349 `__; `b57028c `__; `240178a `__; `9ec0ab8 `__; `fef14c4 `__; `db0df2a `__; `575ebe7 `__; `#177 `__; `#178 `__). **Caveats** - Same as version `0.1.2 `__. `[v0.1.61] `__ - 2015-03-04 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Added `“lazy parallelization” `__ ability. Now the user can run as many instances of the code as needed simply by creating extra ``asteca_xx.py`` and ``input_xx`` folders where ``xx`` are integers of the form: 01, 02,…, 99. - `Reposition `__ several text boxes in output images, newer versions of ``matplotlib`` moved them from the previous position. - Fix `bad import `__ of ``rpy2`` package, positioned incorrectly in two functions. - Fix ``DeprecationWarning`` showing when ``exp_function`` was used (`#169 `__). **Caveats** - Same as version `0.1.2 `__. `[v0.1.5] `__ - 2015-03-03 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ (**Warning**: this release breaks compatibility with the previous version of the ``params_input.dat`` file) - Improved radius assignment algorithm (`#146 `__). - Detect cropped cluster region and use correct area when generating field regions (`#139 `__, `#157 `__). - Fixed bug that crashed the code when top tiers synthetic clusters with no stars were plotted (`#147 `__). Added minimum total mass of 10Mo. - Fixed bug where KDE p-values for field vs field comparison were artificially increased by comparing a field region with itself (`#138 `__). - Obtain KDE p-value even if one field region is defined (`#114 `__). - Fixed small bug that prevented integrated magnitude curves from being plotted (`#145 `__). - Fixed several smaller bugs and issues (`#110 `__, `#150 `__, `#140 `__, `#142 `__, `#141 `__, `#149 `__, `#95 `__, `#148 `__, `#136 `__, `#163 `__, `#143 `__). **Caveats** - Same as version `0.1.2 `__. `[v0.1.4] `__ - 2014-12-18 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Improved plotting of crowded fields (`#62 `__). - Function to generate image is now more stable (`#112 `__). Re-arranged plots in output image. - Add *Top tiers* models output (`#130 `__). - Fixed small bug in KDE p-values function (`#134 `__). - Minor re-arrangement with semi-input data. **Caveats** - Same as version `0.1.2 `__. `[v0.1.3] `__ - 2014-12-10 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Accept arrays of non-equispaced parameter values instead of only equispaced ranges (`#121 `__). - Added support for log-normal `Chabrier (2001) `__ IMF. - More precise encoding/decoding in genetic algorithm. - Functions separated into sections (`#125 `__). - Input parameters set as global variables (`#132 `__). **Caveats** - Same as version `0.1.2 `__. `[v0.1.2] `__ - 2014-12-01 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Likelihood method now supports `Dolphin (2002) `__ *Poisson likelihood ratio* function. - Closed `#120 `__, `#101 `__, `#129 `__, `#124 `__, `#102 `__. - Minor `position fix `__ for synthetic cluster text box in output plot. - Brute force algorithm now returns `correct errors `__. - Some fixes for when unique values in the input parameter ranges are used (`[1] `__, `[2] `__). - Replaced deprecated `compiler package `__ used to flatten list. **Caveats** - Still not sure why *tolstoy* likelihood is biased towards high masses :confused: `[v0.1.1] `__ - 2014-11-07 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ *More stable release.* - Closed `#113 `__, `#116 `__. - Minor `change `__ to error function. - Closed *Known issues* from previous version. **Caveats** - Same as previous version. `[v0.1.0] `__ - 2014-10-08 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ *First semi-stable buggy release* - Closed `#72 `__, `#99 `__, `#37 `__. - Changed the way the IMF was `sampled `__, now it should be faster and more precise. - Some speed improvements (moved things around mainly). - Binary fraction is now a free parameter. **Known issues** - **Serious bug**: if the DA is set to run but the *Best fit method* isn’t, the final plot can’t be produced since the ``syn_cl_err`` function isn’t used (`fixed `__ in next release). - Forgotten ``print`` prints out mass values every time the E/I operator is applied (`fixed `__ in next release). - If the number of points (``n_left``) in the radius finding function is smaller than 4, a very small radius is likely to be selected. `Fixed `__ in next release. **Caveats** - The total initial mass can be set as a free parameter but the likelihood function will select always synthetic clusters of high mass. Thus it is advised to leave this parameter fixed to 1000 solar masses. - The binary fraction found is not stored in the output data file. - Some density map plots for mass and binary fraction are missing. `[v4.0.0-beta] `__ - 2014-09-23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Closed `#85 `__, `#70 `__, `#43 `__, `#86 `__. - Metallicity and age now take steps in the GA. - Add `checker `__ function to make sure certain parameters are set correctly before running. - Number of points in ``get_radius`` increased 20% –> 25% of `the RDP `__. `[v3.0.0-beta] `__ - 2014-09-16 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Closed: `#89 `__, `#77 `__, `#80 `__. - The ``params_input.dat`` and ``semi_input.dat`` files are now located at the top level next to ``asteca.py``. - Cluster’s photometric files are not longer required to be stored inside a sub-folder to be picked-up by the code. `[v2.0.1-beta] `__ - 2014-09-15 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Correct version number. `[v2.0.0-beta] `__ - 2014-09-11 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - Closed issues: `#15 `__, `#73 `__, `#53 `__, `#24 `__, `#75 `__, `#79 `__, `#81 `__, `#59 `__, `#83 `__, `#78 `__, `#69 `__, `#74 `__. - Changed name of package (OCAAT –> ASteCA). - Added separate function to handle the spatial 2D histogram. - Changes to ``get_center`` function (now hopefully simpler) - Added UBVI support for *V vs (U-V)*. - Added 2MASS CMD support for *J vs (J-H)*, *H vs (J-H)* and *K vs (H-K)*. - Improve field star regions integrated magnitudes curve averaging. - Simplify process of adding a new CMD. - Added details on how the integrated magnitude calculation is done in the manual. - Lots of minor edits/corrections. `[v1.0.0-beta] `__ - 2014-08-24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ *First beta release* Version used (with some small changes) in the `original article `__.