Uncertainty analysis of a slope

Question

Abul Hasib 2020-11-14

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/647493-uncertainty-analysis-of-a-slope

编辑： Ameer Hamza 2020-11-14

v2=[45.02007409 120.055849 233.631225 389.351824 590.149849 835.499025 1127.549241]';

F=[0.1342 0.329 0.6141 1.008 1.516 2.149 2.892]';

plot(v2,F)

I have this code. I want to do the uncertainty analysis of the slope. The equation came out to be y=0.0025x+0.019. The Linest function in excel can be used to do that but I would like to know if there is any way to do it in MATLAB.

Any ideas? Thanks in advance.

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Answer 1

Ameer Hamza 2020-11-14

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/647493-uncertainty-analysis-of-a-slope#answer_544258

编辑：Ameer Hamza 2020-11-14

在 MATLAB Online 中打开

Yes, there are several ways to do this in MATLAB. Most efficient is to use mldivide (\)

v2=[45.02007409 120.055849 233.631225 389.351824 590.149849 835.499025 1127.549241]';
F=[0.1342 0.329 0.6141 1.008 1.516 2.149 2.892]';
A = [v2, ones(size(v2))];
x = A\F

Result