Nonlinear/Statistical Curve Fitting?

Hello,

I have created some plots that show information about the number of cells and the size of the cells. On excel, the data looks like this:

The blue line is the count, the orange/gold line is the size.

From a plotting perspective, the count data is as follows:

x1 = [1 2 4 6 8 10 11 14]; y1 = [1 1.5 2 1.5 4.333333333 1.5 1.5 1];

the size data is as follows:

x2 = [ 1 2 4 6 8 10 11 14], y2 = [72.49283 80.96316 228.9255 60.36849 66.8786 88.73138 328.6935 78.67592]

I would like to create a function for both of the data sets, and then also create a function which describes both sets of data. How would I go about doing this?

Thanks for your time.

[Daniel Murphy]

What do you mean by "create a function"? Do you want to be able to interpolate the datasets?

Answer 1

[Birdman]

Curve Fitting Toolbox should do what you want. See the attached figures to see how to get it done.

To import those fitted models to workspace, go to Fit->Save to Workspace.