# scalar_calibration_terms

Number of scalar calibration terms

**Specification**

*Alias:*None*Arguments:*INTEGER

**Description**

This keyword describes the number of scalar calibration terms.
It is meant to be used in conjunction with `field_calibration_terms`

, which describes
the number of field calibration terms. The total number of calibration
terms, both scalar and field, is given by `calibration_terms`

.
If only scalar calibration terms are specified, it is not necessary
to specify the number of scalar terms explicitly: one can simply
say `calibration_terms`

= 5 and get 5 scalar terms.
However, if there are three scalar terms and 2 field terms, then
`calibration_terms`

= 5 but `scalar_calibration_terms`

= 3 and `field_calibration_terms`

= 2.

Calibration terms are responses that are used with calibration methods in Dakota, such as least squares optimizers. Currently, each scalar term is added to the total sum-of-squares error function presented to the optimizer. However, each individual field value is added as well. For example, if you have one field calibration term with length 100 (e.g. a time - temperature trace with 100 time points and 100 temperature points), the 100 temperature values will be added to create the overall sum-of-squares error function used in calibration.