3D best fit tendline
3D best fit tendline
(OP)
Help much appreciated;
When using griddata and meshgrid to produce a 3D plot is there anyway to fit a trendline rather than just interpolate between the results.
Currently the experimental data used produces a somewhat 'wavey' plot. It would be much improved if a smoother plot could be achieved by fitting a surface through the data rather than interpolating between results.
Thanks
When using griddata and meshgrid to produce a 3D plot is there anyway to fit a trendline rather than just interpolate between the results.
Currently the experimental data used produces a somewhat 'wavey' plot. It would be much improved if a smoother plot could be achieved by fitting a surface through the data rather than interpolating between results.
Thanks





RE: 3D best fit tendline
your data won't be improved by adding a trend line ...
the presentation of your data might, but then maybe the "waviness" is an important technical detail.
RE: 3D best fit tendline
comments welcomed
RE: 3D best fit tendline
Click the ‘Options’ tab in the window . Check the ‘Display equation on chart’ option and click ‘OK’. This plots a linear fit and gives the slope and the offset of the fit.
RE: 3D best fit tendline
RE: 3D best fit tendline
Smoothing data.. must be a NASA thing?
RE: 3D best fit tendline
Best Fit Straight Line (linear regression).
Moving Average Filter.