| T O P I C R E V I E W |
| moketmr |
Posted - 06/14/2006 : 05:40:44 AM
Origin Version : 7.0
Operating System: Win XP
In NLSF, the parameter dependency is defined by
1 - 1 / (C_ii * C_ii^-1)
However, the definition of matrix C is problematic.
Accordingly, the inverse of C is defined as the direct product of
F and F'.
F has already been given as the corresponding Jacobian.
But what is the meaning of F' ? For simplicity,
what is F' if the fitting function f(x)= ax + b ?
Let's say:
x y
1 2.1
2 4.2
3 6.3
4 8.4
5 10.5
By tracing back to the mathematic structure, better understanding on the parameter dependency can be acquired. The content in help file is not so satisfactory.
Would somebody help ? Thanks !! |
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