polyCub.iso.
The (analytical) integral of $r f_r(r)$ from 0 to
$R$ is checked against a numeric approximation using
integrate for various values of the upper
bound $R$. A warning is issued if inconsistencies are
found.checkintrfr(intrfr, f, ..., center, control = list(), rs = numeric(0L),
tolerance = control$rel.tol)intrfr. If it has length 0,
no checks are performed.all.equal.numeric when
comparing intrfr results with numerical
integration. Defaults to the relative tolerance used for
integrate.R (first argument, not necessarily named
"R", must be vectorized). If missing,
intrfr is approximated numerically using
f or
intrfr.integrate, the quadrature rule used for the
line integral along the polygon boundary.intrfr function. If it was not supplied, its
quadrature version using integrate is returned.