Issues

• Document that fixed-effect subscripts are reserved for varying slopes

  formulavarying-slopes
  py-econometrics/pyfixest#1832 · Filter by author s3alfisc opened on Oct 3, 2026

• Support three-way and higher multiway clustering

  featureinference
  Feature

  py-econometrics/pyfixest#1827 · Filter by author s3alfisc opened on Oct 3, 2026 · v0.70.0

• Reject misaligned vcov data without wrong results or process crashes

  buginference
  Bug

  py-econometrics/pyfixest#1825 · Filter by author s3alfisc opened on Oct 3, 2026 · v0.70.0

• Update marginaleffects for the typed fitted-model state

  dependenciespost-estimationtask
  Task

  py-econometrics/pyfixest#1824 · Filter by author s3alfisc opened on Oct 3, 2026 · v0.70.0

• Preserve no-intercept IV specifications through first-stage instruments

  bugformula
  Bug

  py-econometrics/pyfixest#1822 · Filter by author s3alfisc opened on Oct 3, 2026 · v0.70.0

• Narrow ty's formulaic-as-Any setting so formulaic API drift is type-checked

  dependenciesinfrastructuretask
  Task

  py-econometrics/pyfixest#1821 · Filter by author s3alfisc opened on Oct 3, 2026

• Detect i() terms from the model spec instead of :: in coefficient names

  bugformulapost-estimation
  Bug

  py-econometrics/pyfixest#1820 · Filter by author s3alfisc opened on Oct 3, 2026

• Give : cluster interactions the same message as ^, and keep spaces in cluster names

  buginference
  Bug

  py-econometrics/pyfixest#1819 · Filter by author s3alfisc opened on Oct 3, 2026
  1

  

• Collect model-matrix roles by key instead of the private _flatten() with keep-first dedup

  dependenciesformulatask
  Task

  py-econometrics/pyfixest#1818 · Filter by author s3alfisc opened on Oct 3, 2026

• Document or fix drop_intercept=True differing from - 1 for categorical regressors

  bugdocsformula
  Bug

  py-econometrics/pyfixest#1817 · Filter by author s3alfisc opened on Oct 3, 2026

• Default create_model_matrix to an empty context instead of capturing its caller's frame

  bugdidformula
  Bug

  py-econometrics/pyfixest#1816 · Filter by author s3alfisc opened on Oct 3, 2026

• Reject fixest selector syntax and %in% with clear errors

  bugformula
  Bug

  py-econometrics/pyfixest#1814 · Filter by author s3alfisc opened on Oct 3, 2026

• Canonicalize or document interaction coefficient names (X2:X1 vs fixest X1:X2)

  docsformulatask
  Task

  py-econometrics/pyfixest#1813 · Filter by author s3alfisc opened on Oct 3, 2026

• Validate did2s formulas with the parser instead of string surgery

  bugdidformula
  Bug

  py-econometrics/pyfixest#1812 · Filter by author s3alfisc opened on Oct 3, 2026

• Fix did2s crashing when the second stage drops a collinear column

  bugdidinference
  Bug

  py-econometrics/pyfixest#1811 · Filter by author s3alfisc opened on Oct 3, 2026

• Reject multiple estimation that mixes IV and non-IV specifications with a clear error

  bugformula
  Bug

  py-econometrics/pyfixest#1809 · Filter by author s3alfisc opened on Oct 3, 2026

• Support or clearly reject interacted endogenous terms instead of blaming formulaic

  bugformula
  Bug

  py-econometrics/pyfixest#1808 · Filter by author s3alfisc opened on Oct 3, 2026

• Make pyfixest's log() report non-positive values accurately and count them in the right drop stage

  bugformula
  Bug

  py-econometrics/pyfixest#1806 · Filter by author s3alfisc opened on Oct 3, 2026

• Validate i() arguments and reject unsupported fixest forms with clear errors

  bugformula
  Bug

  py-econometrics/pyfixest#1805 · Filter by author s3alfisc opened on Oct 3, 2026

• Stop ref2/bin2 from silently turning a numeric second variable into a factor

  bugdidformula
  Bug

  py-econometrics/pyfixest#1804 · Filter by author s3alfisc opened on Oct 3, 2026

• Name i() levels like fixest (f1::1, TRUE), or record the difference in the ledger

  bugformula
  Bug

  py-econometrics/pyfixest#1801 · Filter by author s3alfisc opened on Oct 3, 2026

• Drop zero-weight rows like fixest instead of rejecting them with a contradictory message

  bugformula
  Bug

  py-econometrics/pyfixest#1800 · Filter by author s3alfisc opened on Oct 3, 2026

• Snapshot the captured formula context at fit time

  bugformulapost-estimation
  Bug

  py-econometrics/pyfixest#1798 · Filter by author s3alfisc opened on Oct 3, 2026

• Raise a clear error when a data column shadows i(), log, C or I

  bugformula
  Bug

  py-econometrics/pyfixest#1797 · Filter by author s3alfisc opened on Oct 3, 2026

• Order IV coefficients like fixest, or record the difference in the ledger

  bugformula
  Bug

  py-econometrics/pyfixest#1796 · Filter by author s3alfisc opened on Oct 3, 2026