Issues

• NUTSSampler.sample uses pm.sample arguments that PyMC 6 deprecates

  QuantClimate/Impulso#382 · Filter by author juanitorduz opened on Oct 4, 2026

• VAR.prior does not round-trip: a custom prior reloads as a default MinnesotaPrior

  bug
  QuantClimate/Impulso#379 · Filter by author thomaspinder opened on Oct 2, 2026

• JAX samplers fail on models with latent series: the latent_stationarity gradient goes through eig

  bug
  QuantClimate/Impulso#378 · Filter by author thomaspinder opened on Oct 2, 2026

• GrangerCausalityResult reuses median()/hdi() names with incompatible return contracts

  QuantClimate/Impulso#294 · Filter by author thomaspinder opened on Aug 5, 2026

• Use of pymc-extras Prior class and VariableFactory protocol

  QuantClimate/Impulso#287 · Filter by author williambdean opened on Aug 5, 2026

• internal: GrangerCausalityResult.summary() rebuilds the stacked strength array three times

  internal
  QuantClimate/Impulso#282 · Filter by author thomaspinder opened on Aug 4, 2026

• ci: dependency floors on Python 3.13/3.14 are declared but never verified

  cip2
  QuantClimate/Impulso#281 · Filter by author thomaspinder opened on Aug 4, 2026

• enhancement: hdi_bounds should validate prob is in (0, 1)

  enhancementgood first issue
  QuantClimate/Impulso#280 · Filter by author thomaspinder opened on Aug 4, 2026

• perf: identification-scheme posterior memoisation misses across calls on ArviZ 1

  internalp2perf
  QuantClimate/Impulso#279 · Filter by author thomaspinder opened on Aug 4, 2026

• test: sigma_eta recovery assertion in test_rw_recovery has near-zero margin

  QuantClimate/Impulso#276 · Filter by author juanitorduz opened on Aug 4, 2026

• docs: migrate tutorials to ArviZ 1 and add a compatibility-seam ADR

  QuantClimate/Impulso#275 · Filter by author juanitorduz opened on Aug 4, 2026

• Audit 2026-07-29: tracking issue

  internal
  QuantClimate/Impulso#266 · Filter by author thomaspinder opened on Jul 29, 2026

• No isfinite check on exog_future in the three forecast-side methods

  bug
  QuantClimate/Impulso#265 · Filter by author thomaspinder opened on Jul 29, 2026

• ForecastResult.to_dataframe() docstring promises long format, returns wide, and disagrees with median() on index metadata

  documentation
  QuantClimate/Impulso#264 · Filter by author thomaspinder opened on Jul 29, 2026

• HistoricalDecompositionResult.hdi() computes the HDI of baseline and discards it

  internalperf
  QuantClimate/Impulso#263 · Filter by author thomaspinder opened on Jul 29, 2026

• ADPRR solves run through the Gram matrix C C′, squaring cond(C) and corrupting the plausibility statistic

  bug
  QuantClimate/Impulso#262 · Filter by author thomaspinder opened on Jul 29, 2026

• The time-varying FEVD branch executes in zero tests

  internal
  QuantClimate/Impulso#261 · Filter by author thomaspinder opened on Jul 29, 2026

• Two unmarked MCMC tests dominate the "fast" suite

  internal
  QuantClimate/Impulso#260 · Filter by author thomaspinder opened on Jul 29, 2026

• assert upper >= lower is guaranteed by ArviZ — prob= forwarding unverified in 9 of 10 result classes

  internal
  QuantClimate/Impulso#259 · Filter by author thomaspinder opened on Jul 29, 2026

• FittedVAR.forecast(seed=) vs FittedSV.forecast(random_seed=)

  breaking-changeenhancement
  QuantClimate/Impulso#258 · Filter by author thomaspinder opened on Jul 29, 2026

• Eager select_lag_order import defeats the lazy-import registry (~1.1 s of a ~1.4 s import impulso)

  internalperf
  QuantClimate/Impulso#257 · Filter by author thomaspinder opened on Jul 29, 2026

• plot_historical_decomposition emits 2·S·T Rectangle patches per panel

  internalperf
  QuantClimate/Impulso#256 · Filter by author thomaspinder opened on Jul 29, 2026

• propagate_contributions runs T×p strided einsums — ~73% of historical_decomposition runtime

  internalperf
  QuantClimate/Impulso#255 · Filter by author thomaspinder opened on Jul 29, 2026

• historical_decomposition/counterfactual accept degenerate start/end windows

  bug
  QuantClimate/Impulso#254 · Filter by author thomaspinder opened on Jul 29, 2026

• Constant-volatility prior on Σ depends on endogenous column order

  bug
  QuantClimate/Impulso#253 · Filter by author thomaspinder opened on Jul 29, 2026