followrole

followrole
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Name

followrole — return the role of a chimp in a follow

Synopsis

`VARCHAR followrole (`	`followid`,
	`chimpid)`;


              INT
              followid

;


              VARCHAR(5)
              chimpid

;

Input

followid

A FOLLOWS.FollowID value.

chimpid

A CHIMPIDS.ChimpID value.

Description

A function which returns the role, i.e. M, I, or S of a chimpid in a follow, or NF if the chimp is not a focal in the follow.

Note that the role, returned by followrole(), is able to distinguish twins from other infants or siblings whereas the function, returned by followfunc(), does not make this distinction.

A NULL is returned if any of the input arguments are NULL.

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