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jieer567

新虫 (初入文坛)

[求助] 急求!! excel怎么求斜率和纵坐标的标准偏差

急求!!哪位大侠知道在excel,怎么求一条直线的斜率和纵坐标的标准偏差,审稿人给我步骤看不懂,哪位能给看看
the standard deviations in both the slope and the ordinate at the origin. You can calculate this from Excel as:
a) load the x- and y values in columns.
b) select with the mouse a square of 5 columns x 2 files.
c) select successively “insert”, “function” and “lineal estimation”.
d) insert in the four folders now appearing, successively the y-values, the x-values, “1” and “1”.
e) place the cursor in the “fx” folder appearing over the main window.
f) then, press “ctrl” “shift” and “enter” simultaneously.
g) In the marked space will appear:
First column, first line: slope.
First column, second line: standard deviation in the slope.
Second column, first line: ordinate at the origin.
Second column, second line: standard deviation in the ordinate at the origin.
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syjbyq

捐助贵宾 (正式写手)

【答案】应助回帖

感谢参与,应助指数 +1
直接在图中添加拟合趋势线,再选择方程形式、相关参数即可
标准偏差,在excel中有现成公式套用,不过我还是建议用SPSS吧
2楼2013-06-08 18:20:12
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