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| R2012a Documentation → Statistics Toolbox | |
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Object representing univariate parametric probability distribution
A ProbDistUnivParam object represents a univariate parametric probability distribution. You create this object by using the constructor (ProbDistUnivParam) and supplying parameter values, or by using the fitdist function to fit the distribution to data.
| fitdist | Fit probability distribution to data |
| ProbDistUnivParam | Construct ProbDistUnivParam object |
| cdf | Return cumulative distribution function (CDF) for ProbDist object |
| icdf | Return inverse cumulative distribution function (ICDF) for ProbDistUnivParam object |
| iqr | Return interquartile range (IQR) for ProbDistUnivParam object |
| mean | Return mean of ProbDistUnivParam object |
| median | Return median of ProbDistUnivParam object |
| paramci | Return parameter confidence intervals of ProbDistUnivParam object |
| Return probability density function (PDF) for ProbDist object | |
| random | Generate random number drawn from ProbDist object |
| std | Return standard deviation of ProbDistUnivParam object |
| var | Return variance of ProbDistUnivParam object |
Note Some of the above methods are inherited from the ProbDistParametric class. |
| DistName | Read-only string containing probability distribution name of ProbDist object |
| InputData | Read-only structure containing information about input data to ProbDist object |
| NLogL | Read-only value specifying negative log likelihood for input data to ProbDistParametric object |
| NumParams | Read-only value specifying number of parameters of ProbDistParametric object |
| ParamCov | Read-only covariance matrix of parameter estimates of ProbDistParametric object |
| ParamDescription | Read-only cell array specifying descriptions of parameters of ProbDistParametric object |
| ParamIsFixed | Read-only logical array specifying fixed parameters of ProbDistParametric object |
| ParamNames | Read-only cell array specifying names of parameters of ProbDistParametric object |
| Params | Read-only array specifying values of parameters of ProbDistParametric object |
| Support | Read-only structure containing information about support of ProbDist object |
Note The above properties are inherited from the ProbDistParametric class. |
Note Parameter values are also properties. For example, if you create PD, a univariate parametric probability distribution object that represents a normal distribution, then PD.mu and PD.sigma are properties that give the values of the mu and sigma parameters. |
Value. To learn how this affects your use of the class, see Copying Objects in the MATLAB Programming Fundamentals documentation.
[1] Johnson, N. L., S. Kotz, and N. Balakrishnan. Continuous Univariate Distributions. Vol. 1, Hoboken, NJ: Wiley-Interscience, 1993.
[2] Johnson, N. L., S. Kotz, and N. Balakrishnan. Continuous Univariate Distributions. Vol. 2, Hoboken, NJ: Wiley-Interscience, 1994.
fitdist | ProbDist | ProbDistParametric | ProbDistUnivParam
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