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FTTFUNIQUE

Description: Allows you to manually build a table that shows the first times-to-failure for a given mode type. This applies only to data sets analyzed with the Crow Extended or Crow Extended - Continuous Evaluation models.

Syntax: FTTFUNIQUE(Data_Src,Row,Column,Mode_Type)

Data_Src is the source data sheet from which the information is taken.

Row corresponds to the order in which the unique failure modes appeared in the data set (i.e., row 1 = 1st unique failure mode that occurred, row 2 = 2nd unique failure mode that occurred, etc.).
Column is an index number (1 or 2) that returns the following information:
- 1 = returns the classification and mode.
- 2 = returns the time of the first failure.

Mode_Type allows you to select the mode classification. It is shown in the function as a numerical value that indicates the selected mode: A Modes = 0; BC Modes = 1; BD Modes = 2; All Modes = 3.

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).

The Row and Column values must be greater than 0.

Example:

The following table is for a particular data set analyzed with the Crow Extended model, with the function's Mode_Type set to BD modes. It shows the first time to failures of all the unique BD modes in the data set.

Note that the values depend on the source data set.