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logcondens (version 2.0.6)

activeSetRoutines: Auxiliary Numerical Routines for the Function activeSetLogCon

Description

Functions that are used by activeSetLogCon.

Usage

LocalCoarsen(x, w, IsKnot)
LocalConvexity(x, phi)
LocalExtend(x, IsKnot, x2, phi2) 
LocalF(x, phi)
LocalNormalize(x, phi)
LocalMLE(x, w, IsKnot, phi_o, prec)
LocalVariance(x, w = NULL, phi)

Arguments

x
Vector of independent and identically distributed numbers, with strictly increasing entries.
w
Optional vector of nonnegative weights corresponding to ${\bold{x}}$.
IsKnot
Vector with entries IsKnot$_i = 1{\phi$ has a kink at $x_i}.$
phi
Vector with entries $\phi(x_i).$
x2
Vector of same type as ${\bold{x}}$.
phi2
Vector of same type as ${\bold{\phi}}$.
phi_o
Optional starting vector.
prec
Threshold for the directional derivative during Newton-Raphson procedure.

See Also

All the above functions are used by activeSetLogCon to estimate a log-concave probability density. Log concave density estimation via an iterative convex minorant algorithm can be performed using icmaLogCon.