What is the format for calling a curve fit via the DDE

[colinITS]

Hi
I am relatively new to Dplot. Assuming it is possible to acheive,could you please assist me with the format for calling the curve fit Y=AxB + CxD + ExF and all of it’s arguments (curve to fit, terms, initial values/constraints, fit all points, X from and to values) via the DDE. Thanks