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Density and random generation for the Cardioid circular distribution.
dcardioid(x, mu = circular(0), rho = 0) rcardioid(n, mu = circular(0), rho = 0, control.circular=list())
dcardioid gives the density and rcardioid generates random deviates.
dcardioid
rcardioid
a vector. The object is coerced to class circular.
circular
number of observations.
mean direction of the distribution. The object is coerced to class circular.
concentration parameter of the distribution. Absolute value of rho must be less than 0.5.
rho
the coordinate system used in the output of rcardioid. See circular for details.
Claudio Agostinelli and Ulric Lund
Jammalamadaka, S. Rao and SenGupta, A. (2001). Topics in Circular Statistics, Section 2.2.2, World Scientific Press, Singapore.
set.seed(1234) resrad <- rcardioid(n=10) set.seed(1234) resdeg <- rcardioid(n=10, control.circular=list(units="radians", zero=pi)) max(abs(resrad - conversion.circular(resdeg, zero=0)))
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