rust: Ratio-of-Uniforms Simulation with Transformation version 1.2.3

Bug fixes and minor improvements

• In ru() and ru_rcpp() the constant hscale is used to shift logf (and hence scale the target density f) in function logf in the returned object. This helps to avoid over/under-flow when contouring f in plot.ru when d = 2.

• The var_names argument to ru_rcpp didn't work. This has been corrected.

• The arguments lower, upper to ru and ru_rcpp are now used, at least partly even when rotate = TRUE. See the updated description of lower, upper in the documentation of ru and ru_rcpp.

• That the function logf supplied to ru or ru_rcpp should return -Inf when the density f is zero is stated explicitly in the help files.

• ru() did not work when trans = "user" and d > 1. This has been corrected.

• Extra checks are used to try to avoid erroneous convergence warnings.

• Incorrectly formatted link to the Rcpp Gallery webpage corrected in the vignette "Rusting Faster: Simulation using Rcpp".

• Extra examples provided for ru and for ru_rcpp: (a) Cauchy, (b) half-Cauchy and (c) bivariate normal x bivariate student-t.