Thin draws objects to reduce their size and autocorrelation in
the chains.
thin_draws(x, thin = NULL, ...)
# S3 method for draws
thin_draws(x, thin = NULL, ...)
# S3 method for rvar
thin_draws(x, thin = NULL, ...)(draws) A draws object or another R object for which the method
is defined.
(positive numeric) The period for selecting draws. Must
be between 1 and the number of iterations. If the value is not an
integer, the draws will be selected such that the number of draws
returned is equal to round(ndraws(x) / thin). Intervals between
selected draws will be either ceiling(thin) or floor(thin), such
that the average interval will be close to the thin value. If
NULL, it will be automatically calculated based on bulk and
tail effective sample size as suggested by Säilynoja et
al. (2022).
Arguments passed to individual methods (if applicable).
A draws object of the same class as x.
Teemu Säilynoja, Paul-Christian Bürkner, and Aki Vehtari (2022). Graphical test for discrete uniformity and its applications in goodness-of-fit evaluation and multiple sample comparison. Statistics and Computing. 32, 32. doi:10.1007/s11222-022-10090-6
x <- example_draws()
niterations(x)
#> [1] 100
x <- thin_draws(x, thin = 5)
niterations(x)
#> [1] 20