Stingray 2.0.0, release candidate 1

New Features

• Power colors à la Heil et al. 2015
  (#780)
• Calculate colors and intensities on a segment-by-segment basis in
  event lists
  (#781)
• A function to randomize data in small bad time intervals
  (#782)
• The Lomb Scargle Fourier Transform (fast and slow versions) and the
  corresponding LombScargleCrossspectrum{.interpreted-text
  role="class"} and LombScarglePowerspectrum{.interpreted-text
  role="class"}
  (#737)
• A JAX implementation of the Gaussian Process tool by Hubener et
  al for QPO detection and
  parameter analysis.
  (#739)
• Extend join operation for events to arbitrary array attributes, not
  just pi and energy
  (#742)
• Allow the creation of empty light curves.
  (#745)
• Make StingrayTimeseries into a generalized light curve, with a less
  strict naming but implementing much of the underlying computing
  useful for Lightcurve as well.
  (#754)
• Our fast implementation of histograms is now safer (failing safely
  to the equivalent numpy histogram functions), more consistent
  (ranges moved to range, for consistency with numpy), and accept
  complex weights as well!
  (#764)

Bug Fixes

• When rms is low, the calculation in compute_rms often gave
  [NaN]{.title-ref}. We now check for this situation and give 0 with
  an uncertainty as a result.
  (#736)
• Eliminates deprecated call to
  [enable_deprecations_as_warnings]{.title-ref}, and contextually,
  changes the code to be much more robust in catching harmful
  warnings.
  (#738)
• Changes Crossspectrum.plot() function to plot the actual real and
  imaginary parts instead of their absolute values.
  (#747)
• Make commits marked as [docs only] skip all CI but the docs build
  (#749)
• Update tstart and tseg when using Lightcurve.truncate()
  (#753)
• Changed list comprehension to generator expression to reduce memory
  usage.
  (#756)
• Fix a bug with segment sizes not exact multiples of dt when dealing
  with light curves
  (#760)
• Fix a bug when light curve segments contain complex values
  (#760)
• Crossspectrum had "real" as default value. This meant that, for
  example, lags could not be calculated. Now the default value is
  "all", as it should be.
  (#762)
• Fix plotting of spectra, avoiding the plot of imaginary parts of
  real numbers
  (#763)
• Various bugfixes in [gti.py]{.title-ref}, and a new function to
  interpret the mix of multiple GTIs.
  (#774)
• Fixed subcs duplication by adding a check in the for loop that
  copies the attributes from table's meta items.
  (#776)
• Various bug fixes in DynamicalPowerspectrum, on event loading and
  time rebinning
  (#779)
• Fix issue with the Poisson noise calculation in lag spectra, that
  produced NaN errors under some conditions
  (#789)
• Fix rms computation and error bars
  (#792)

Breaking Changes

• Eliminate deprecated format_ keyword from read and write methods.
  (#729)
• Remove legacy interface and obsolete large data machinery.
  (#755)
• Eliminate deprecated white_noise_level keyword from compute_rms.
  (#792)

Internal Changes

• Speedup creation of events in EventList.from_lc
  (#757)
• Separate slow tests from quick ones
  (#758)
• Use Readthedocs for documentation building
  (#769)
• More informative GTI messages
  (#787)