.. meta::
   :description: Get started with diff-diff — install the package, run your first Difference-in-Differences analysis, and choose the right estimator for your design.
   :keywords: diff-diff getting started, DiD python install, choose DiD estimator

Getting Started
===============

New to diff-diff? Start here: install the package, run your first analysis,
and learn which estimator fits your research design.

.. grid:: 1 2 2 3
   :gutter: 3

   .. grid-item-card:: Quickstart
      :link: quickstart
      :link-type: doc

      Installation and your first DiD analysis — column-name and formula
      interfaces, covariates, and robust inference.

   .. grid-item-card:: Choosing an Estimator
      :link: choosing_estimator
      :link-type: doc

      A decision flowchart that maps your research design to the right
      estimator, from basic 2x2 DiD to staggered adoption methods.

   .. grid-item-card:: Troubleshooting
      :link: troubleshooting
      :link-type: doc

      Solutions for common issues: singular matrices, collinear covariates,
      insufficient variation, and convergence problems.

.. toctree::
   :maxdepth: 2
   :hidden:

   quickstart
   Choosing an Estimator <choosing_estimator>
   troubleshooting