Hi Lanbo

lme_lowessPlot shows a time plot of the lowess regression curve for each group in your study (two groups in this case). The curve for each group is a smooth estimate of the trend in the mean response over time for that group. This is only used for visualization purposes and can help in selecting the best model for the mean for the subsequent LME-based regression analysis.

Reference: W.S.Cleveland, "Robust Locally Weighted Regression and Smoothing Scatterplots", _J. of the American Statistical Ass._, Vol 74, No. 368 (Dec.,1979), pp. 829-836.

Hope that helps

-Jorge

En miércoles, 20 de diciembre de 2017 16:29:05 GMT-5, lanbo Wang <drrambow@gmail.com> escribió:

Dear all freesurfer experts,

Hi,

When use lme_lowessPlot, the plot shows black and green two lines. What the meaning of two line?

Thank you,

Lanbo

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