The GUI interface reads the specific sheet in xlsx, the last row in sheet is y, the former n is x1-xn, and the linear fitting is y=b0+b1x1+ (+bnxn), showing the standard deviation of formula and residuals.

Filename	Size	Update
task.fig	15381	2018-02-25
task.m	8097	2018-02-25
xianxing.m	469	2018-02-25
data.xlsx	40966	2018-02-24

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