Fitting curves to the graph

1. Select the graph and open the [Graph] - [Fit] menu (or click the button ).

2. Select "Smoothing Spline Regression" for [Method].

3. Select "Every" for [Series].

4. Set [Smoothing Parameter] to "0.1". (Increasing the factor makes the curves close to straight lines; set 0 for interpolation.)

5. Click "Apply Fit" button and select "Yes" for the question: [Do you want to hide connecting lines?].

Changed Graph