wsgnstat 0.1.0

• Initial CRAN submission.
• Density, distribution function, characteristic function and random generation for the skew generalised normal distribution on the line (dsgn(), psgn(), cfsgn(), rsgn()).
• Density, distribution function, quantile function and random generation for its wrapped version on the circle in the identified parameterisation (dwsgn(), pwsgn(), qwsgn(), rwsgn()), and its trigonometric moments (trig_moments()).
• Estimation by minimum distance on the trigonometric moments with sandwich standard errors (fit_wsgn_trig()) and by maximum likelihood with parametric-bootstrap standard errors (fit_wsgn_mle()).
• The characteristic function is evaluated through absolutely convergent integrals, so every routine is available for all shape parameters beta > 0.
• The computation runs on a pure-C back-end shared with the Python package ‘wsgnstat’.