Split Triangle distribution | Vose Software

Split Triangle distribution




The SplitTriangle is used to model expert opinion where the SME is asked for three points on the distribution: for each point the SME provides a value of the variable and their view of the probability of being less than that value. The SplitTriangle then extrapolates from these values to create a distribution composed of 2 triangles as in the figure above.

ModelRisk functions added to Microsoft Excel for the Split-Triangle distribution

VoseSplitTriangle generates random values from this distribution for Monte Carlo simulation, or calculates a percentile if used with a U parameter.

VoseSplitTriangleObject constructs a distribution object for this distribution.

VoseSplitTriangleProb returns the probability density or cumulative distribution function for this distribution.

VoseSplitTriangleProb10 returns the log10 of the probability density or cumulative distribution function.


Split Triangle distribution equations