Triangular Density Function
Returns the triangular density function evaluated at a particular value.
dtri(theta, r)
theta
: vector of angles measured in radians at which to evaluate the density function.r
: concentration parameter of the distribution. r must be between 0 and .Returns the triangular density function evaluated at theta.
Jammalamadaka, S. Rao and SenGupta, A. (2001). Topics in Circular Statistics, Section 2.2.3, World Scientific Press, Singapore.
rtri
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