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Returns a (convergence, taper, approximation,...) tolerance. Defaults to .Machine$double.eps^(1/level), typically about 1e-8.
.Machine$double.eps^(1/level)
1e-8
npsp.tolerance(level = 2, warn = TRUE)
Returns .Machine$double.eps^(1/level) if level >= 1, in other case 1 - .Machine$double.eps.
level >= 1
1 - .Machine$double.eps
numerical,
logical; If TRUE (the default) a warning message is issued when level < 1.
TRUE
level < 1
.Machine
curve(npsp.tolerance, 1, 1000) abline(h = npsp.tolerance(0, FALSE), lty = 2)
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