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prob.TriangularDistribution class

Package: prob
Superclasses: prob.ParametricTruncatableDistribution

Triangular probability distribution object

Description

prob.TriangularDistribution is an object consisting of parameters and a model description for a triangular probability distribution. Create a probability distribution object with specified parameters using makedist.

Construction

pd = makedist('Triangular') creates a triangular probability distribution object using the default parameter values.

pd = makedist('Triangular','a',a,'b',b,'c',c) creates a triangular distribution object using the specified parameter values.

Input Arguments

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Lower limit for the triangular distribution, specified as a scalar value.

Data Types: single | double

Peak location for the triangular distribution, specified as a scalar value greater than or equal to a.

Data Types: single | double

Upper limit for the triangular distribution, specified as a scalar value greater than or equal to b.

Data Types: single | double

Properties

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Lower limit for the triangular distribution, stored as a scalar value.

Data Types: single | double

Location of the peak for the triangular distribution, stored as a scalar value greater than or equal to a.

Data Types: single | double

Upper limit for the triangular distribution, stored as a scalar value greater than or equal to b.

Data Types: single | double

Probability distribution name, stored as a character vector. This property is read-only.

Data Types: char

Logical flag for truncated distribution, stored as a logical value. If IsTruncated equals 0, the distribution is not truncated. If IsTruncated equals 1, the distribution is truncated. This property is read-only.

Data Types: logical

Number of parameters for the probability distribution, stored as a positive integer value. This property is read-only.

Data Types: single | double

Distribution parameter descriptions, stored as a cell array of character vectors. Each cell contains a short description of one distribution parameter. This property is read-only.

Data Types: char

Distribution parameter names, stored as a cell array of character vectors. This property is read-only.

Data Types: char

Distribution parameter values, stored as a vector. This property is read-only.

Data Types: single | double

Truncation interval for the probability distribution, stored as a vector containing the lower and upper truncation boundaries. This property is read-only.

Data Types: single | double

Methods

Inherited Methods

cdf Cumulative distribution function of probability distribution object
icdfInverse cumulative distribution function of probability distribution object
iqrInterquartile range of probability distribution object
median Median of probability distribution object
pdfProbability density function of probability distribution object
randomGenerate random numbers from probability distribution object
truncateTruncate probability distribution object
meanMean of probability distribution object
std Standard deviation of probability distribution object
varVariance of probability distribution object

Examples

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Create a triangular distribution object using the default parameter values.

pd = makedist('Triangular')
pd = 

  TriangularDistribution

A = 0, B = 0.5, C = 1

Create a triangular distribution object by specifying parameter values.

pd = makedist('Triangular', 'a',-2,'b',1,'c',5)
pd = 

  TriangularDistribution

A = -2, B = 1, C = 5

Compute the mean of the distribution.

m = mean(pd)
m =
    1.3333

Definitions

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See Also

Topics

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