- #1

patric44

- 303

- 39

- Homework Statement
- why nonlinear least square method will not work well with the function

y=kx/(5+cx)

- Relevant Equations
- y=kx/(5+cx)

I was trying to fit a set of data to the nonlinear equation

$$

y=\frac{kx}{5+cx}

$$

and find the parameters k,c that will result in a best fit, but (I was told without explanation) that the parameters change as we increase x, so regular fitting techniques such as nonlinear least square will not work?

can any one explain this to me, if the parameters vary as a function of the independent variable what is the best way for the fitting, and is that even possible?

$$

y=\frac{kx}{5+cx}

$$

and find the parameters k,c that will result in a best fit, but (I was told without explanation) that the parameters change as we increase x, so regular fitting techniques such as nonlinear least square will not work?

can any one explain this to me, if the parameters vary as a function of the independent variable what is the best way for the fitting, and is that even possible?