Build better balance in causal inference models. 'halfmoon'
    helps you assess propensity score models for balance between groups
    using metrics like standardized mean differences and visualization
    techniques like mirrored histograms. 'halfmoon' supports both
    weighting and matching techniques.

Conducts analyses for healthcare program evaluations or intervention 
    studies. Calculates regression analyses for standard ordinary least squares 
    (OLS or linear) or logistic models. Performs regression models used for 
    causal modeling such as differences-in-differences (DID) and interrupted 
    time series (ITS) models. Provides limited interpretations of model 
    results and a ranking of variable importance in models. Performs 
    propensity score models, top-coding of model outcome variables, and 
    can return new data with the newly formed variables. Conducts Bayesian 
    analysis summaries and graphs, decision curve analysis, and produces some 
    Shewhart control charts. Also performs Cronbach's  alpha for various scale 
    items (e.g., survey questions). See Github URL for examples in the README 
    file. For more details on the statistical methods, see 
    Allen & Yen (1979, ISBN:0-8185-0283-5), 
    Angrist & Pischke (2009, ISBN:9780691120355), 
    Cohen (1988, ISBN:0-8058-0283-5),
    Gebski (2012) <doi:10.1017/S0950268812000179>,
    Gelman & Goodrich (2019) <doi:10.1080/00031305.2018.1549100>,
    Gelman & Hill (2007, ISBN:978-0-521-68689-1),
    Harrell (2015, ISBN:978-3-319-19424-0), 
    Imbens & Rubin (2015, ISBN:978-0-521-88588-1),
    Kline (1999, ISBN:9780415211581),  
    Kruschke (2014, ISBN:9780124058880), 
    Linden (2015) <doi:10.1177/1536867X1501500208>,
    Merlo (2006) <doi:10.1136/jech.2004.029454>,
    Muthen & Satorra (1995) <doi:10.2307/271070>, 
    Pitman (1993, ISBN:978-0-387-97974-8),
    Rabe-Hesketh & Skrondal (2008, ISBN:978-1-59718-040-5),
    Rosenbaum (2010, ISBN:978-1-4419-1212-1),
    Ryan (2011, ISBN:978-0-470-59074-4), and
    Vickers & Elkin (2006) <doi:10.1177/0272989X06295361>.