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MTBFBD

Description: Allows you to manually build a table that calculates the MTBF of every unique BD mode in the data set. This applies only to data sets analyzed with the Crow Extended or Crow Extended - Continuous Evaluation models.

Syntax: MTBFBD (Data_Src, Row, Column)

Data_Src is the source data sheet from which the value is calculated.

Row corresponds to the order in which the unique BD modes appeared in the data set (i.e., row 1 = 1st unique BD mode that occurred, row 2 = 2nd unique BD mode that occurred, etc.).
Column is an index number (from 1 to 3) that returns the following information:
- 1 = returns the classification and mode.
- 2 = returns the MTBF value before fixes are implemented at the end of the test.
- 3 = returns the MTBF value after fixes have been implemented at the end of the test.

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. For example, it shows that for BD1, the MTBF before the fixes is 197.6 hours and the MTBF after the fixes is 395.2 hours.

Note that the values depend on the source data set.