## Ref Position

Key

**of function**

*Ref Position***in**

*Price***refers to an optional position within the one-dimensional array - if any - associated with the key specified in**

*Tradable*

*Target Key*If omitted, 1 is assumed.

If the value associated with the target key is a single scalar element, the entry here is not relevant.

This entry becomes useful if the above value is a one-dimensional array.

In that case, an entry of 1 means that the first element of this array represents the numerical value, which will be perturbed by the root finder solver until it equals the returned fair value that fulfils the desired criteria.

An entry of 2 identifies the second of the array's elements, and so on.

The entries here correspond to those in Ref Key

This means that if an array of keys is supplied in

**, a similar array of integers must be supplied here.**

*Ref Key*Then the first integer will correspond to the first key in

**, the second integer will correspond to the second key and so on.**

*Ref Key*