[Function]

(lookup x list)

Returns the y value of x in list, a list of x and y values. lookup does not perform interpolation so the y values in list can be any lisp datum.

cm> (lookup .5 '(0 c4 .4 c5 .7 c6))
C6
cm>

See Also:

• interp [Function]
• interpl [Function]
• rescale-envelope [Function]
• tendency [Function]