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nt-williams/README.md

Nick Williams | Biostatistician & Research Software Developer

๐Ÿ”— CV | Google Scholar

๐Ÿ“Œ About Me

I am a Senior Data Analyst at Columbia University, where I work on both methodological and application side causal inference. My work involves developing and maintaining research software for novel causal estimators.

I am particularly interested in:

  • Nonparametric Causal Inference
  • The Intersection of Machine Learning and Statistics
  • Design Focused Open Source Statistical Software

๐Ÿ”ง Selected Software & Projects

  • lmtp โ€“ An R package that provides an estimation framework for the casual effects of feasible interventions based on point-treatment and longitudinal modified treatment policies.
  • mlr3superlearner โ€“ A modern implementation of the Super Learner prediction algorithm using the mlr3 framework.
  • crumble โ€“ An R package for general targeted machine learning for modern causal mediation analysis.
  • ife - S7 class (with Ops) for influence function based estimands.
  • codebreak - A light weight codebook framework for R.

Pinned Loading

  1. lmtp lmtp Public

    ๐Ÿ“ฆ Non-parametric Causal Effects Based on Modified Treatment Policies ๐Ÿ”ฎ

    R 63 18

  2. mlr3superlearner mlr3superlearner Public

    Super learner fitting and prediction using mlr3

    R 9 2

  3. crumble crumble Public

    General targeted machine learning for modern causal mediation analysis

    R 10 3

  4. codebreak codebreak Public

    A light weight codebook framework for R

    R 6

  5. mtpverse/imtp mtpverse/imtp Public

    ๐Ÿ“ฆ Incremental propensity score interventions as described in Nonparametric Causal Effects Based on Incremental Propensity Score Interventions (Kennedy, 2019)

    R 5 1

  6. adjrct adjrct Public

    Doubly-Robust and Efficient Estimators for Survival and Ordinal Outcomes in RCTs Without Proportional Hazards or Odds Assumptions ๐Ÿ’Š

    R 12