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Description: Returns the name of the specified parameter.
Syntax: PARAMNAME(Data_Src, Param_index)
Data_Src is the source data sheet from which the information is taken.
Weibull++
Values 
Param_index is the index specifying the parameter name to be returned. The parameter index corresponds to the order that the parameters appear in the calculated results in the folio, as shown in the next table.
|
Index 1 | Index 2 | Index 3 | Index 4 |
| Weibull | Beta | Eta | Gamma | |
| Normal | Mean | Std | ||
| Lognormal | LogMean | LogStd | ||
| Exponential | Lambda | Gamma | ||
| G-Gamma | Mu | Sigma | Lambda | |
| Gamma | Mu | K | ||
| Logistic | Mu | Sigma | ||
| Loglogistic | Mu | Sigma | ||
| Gumbel | Mu | Sigma | ||
| Weibull-Bayesian | Prior Distribution (see table below) | Parameter1 (see table below) | Parameter2 (see table below) | PstMed / PstMean |
| Normal (0) | Lognormal (1) | Exponential (2) | Uniform (3) | |
| Parameter1 | Mean | LogMean | Lambda | Min Beta |
| Parameter2 | Std | LogStd | Max Beta |
ALTA Values
Param_index is the index specifying the parameter name to be returned. The parameter index corresponds to the order that the parameters appear in the calculated results in the folio, as shown in the next table. Note the following in this table:
The Shape parameter varies based on distribution:
Weibull = Beta
Lognormal = Std
Exponential = None, so every other parameter is shifted down one index
The number of Alpha parameters beyond Alpha(0) depends on the number of stress types (e.g., for 2 stress types, Alpha(0)-Alpha(2) will be present).
| Model | Index 1 | Index 2 | Index 3 | Index 4 | Index 5 | Index 6 | Index 7 | Index 8 | Index 9 | Index 10 |
| Arrhenius | Shape | B | C | |||||||
| Eyring | Shape | A | B | |||||||
| Inverse Power Law | Shape | K | N | |||||||
| Temperature-Humidity | Shape | A | B | Phi | ||||||
| Temperature-NonThermal | Shape | B | C | n | ||||||
| Generalized Eyring | Shape | A | B | C | D | |||||
| Proportional Hazards | Shape | Alpha(0) | Alpha(1) | Alpha(2) | Alpha(3) | Alpha(4) | Alpha(5) | Alpha(6) | Alpha(7) | Alpha(8) |
| General Log-Linear | Shape | Alpha(0) | Alpha(1) | Alpha(2) | Alpha(3) | Alpha(4) | Alpha(5) | Alpha(6) | Alpha(7) | Alpha(8) |
| Cumulative Damage | Shape | Alpha(0) | Alpha(1) | Alpha(2) | Alpha(3) | Alpha(4) | Alpha(5) | Alpha(6) | Alpha(7) | Alpha(8) |
Remarks:
The Data_Src can be one of the following values:
If using a default data source, it must be either 1, 2, 3 or 4, as selected from the Data Source Index drop-down list.
It can take a data sheet name (e.g., "Folio1!Data 1").
It can take a variable name defined in the Defined Names window (e.g., datasource).
Example:
PARAMNAME("Folio1!Data 1", 2) = Eta
Note that this value will vary depending on the source data set.
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