Changelog
0.2.7 (unreleased)
0.2.6
- updated Cosmology class built on classylss, a Python binding of the CLASS Boltzmann code
- LinearPower object added with CLASS or Eisenstein-Hu transfer
- ZeldovichPower object added to compute Zel’dovich power spectrum
- HalofitPower object added to compute nonlinear power
- CorrelationFunction object added to FFT power spectra to compute theoretical correlation functions
- EHPower and NoWiggleEHPower deprecated in favor of LinearPower object
0.2.5
- CSVFile and CSVCatalog no longer fails to read the last line of data when the file does not end in a newline
- CylindricalGroups algorithm added for computing groups of objects using the cylindrical grouping method of arXiv:1611.04165
- SimulationBoxPairCount and SurveyDataPairCount classes added to perform pair counting of objects in either simulation boxes or from survey data catalogs (using
Corrfunc
code)
- large addition of documentation for version 0.2.x; still partially completed
- DataSet has been renamed to BinnedStatistic
- calculation of
dk
fixed in ProjectedFFTPower
- paint() supports a Nmesh parameter, for easier re-sampling of mesh objects
- addition of
Value
column for painting mesh objects; this represents the value of the field painted, i.e., unity to paint density, or velocity to paint momentum (number-weighted velocity)
- addition of style module with matplotlib style sheet to make nice plots in our doc tutorials; this makes the docs reproducible by users
- transform.vstack deprecated in favor of transform.StackColumns
- transform.concatenate deprecated in favor of transform.ConcatenateSources
- when painting catalogs to a mesh, users can specify the position column to use via the
position
keyword
- MultipleSpeciesCatalog object added to support painting multiple species of particles to the same mesh, i.e, baryons and dark matter particles in hydro simulations
- CatalogMeshSource renamed to CatalogMesh internally
- can now delete a column from a CatalogSource
- can now slice a CatalogSource using a list of column names
- fix bug in ConstantArray when length is 1
0.2.4
- transform.StackColumns renamed to
vstack
- transform.concatenate function added, which takes a list of source objects, and returns a new Source that has the concatenation of all data
- compatibility with halotools version 0.5
- ability to resample a MemoryMesh object
- bug fixes related to calculation of growth rate in cosmology module
- ArrayCatalog can now be initialized from a dictionary or structured array
- add a ProjectedFFTPower algorithm, that computes the FFT Power, but can project over certain axes, i.e., projected axes have their power averaged over
- FITSCatalog added to the io module, for reading FITS files
- KDDensity to quickly estimate local density in density region.
- FOF also identifies Peak position and velocity.
0.2.3
- use of
resampler
keyword in the paint
function for compatibility with pmesh versions >= 0.1.24
- bug fixes and code cleanup
0.2.2
- package maintenance updates only
0.2.1
- base dependencies + extras (halotools, h5py); install all dependencies via pip nbodykit[extras]
- meta-data calculations in FKPCatalog now account for Source selection properly
- support for numpy int/float meta-data in JSON output files
- Cosmology instances no longer return attributes as Quantity instances, assuming a default set of units
- renaming of various classes/module related to the nbodykit.Source syntax
- no more nbodykit.Source in nbodykit.lab
- nbodykit.source.particle has been renamed to nbodykit.source.catalog
- source objects are now catalogs – there class names have “Catalog” appended to their names
- added individual catalogs for different file types in nbodykit.io, i.e., CSVCatalog, HDFCatalog, etc
- the
.apply
operation is no longer in place for sources; it returns a view with the list of actions extended
- galaxy type (central vs satellite) stored as integers in HODCatalog