Simple Linear Interpolation using Interp1

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Michael 2014-8-14

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https://ww2.mathworks.cn/matlabcentral/answers/147653-simple-linear-interpolation-using-interp1

评论： Peter 2024-4-23，12:54

采纳的回答： Andrei Bobrov

在 MATLAB Online 中打开

Hi all. I'm fairly new to Matlab and I'm just trying to interpolate.

I have a [1 12] time vector that represent 12 hours. I also have a temperature vector that only has 10 values because 2 of them are missing. I understand that the sizes must be equal to use interp1. This is what I have so far:

    time = [1 2 3 4 5 6 7 8 9 10 11 12];
temp = [10 12 15 13 [] 16 16 18 [] 15 21 20];
points = [1 2 3 4 5 6 7 8 9 10 11 12];
y = interp1(time,temp,points,'linear')

The empty matrices are where I don't have available times. I'm trying to use all of this data to linearly interpolate temperatures for all entries in my points array.

Thanks so much :)

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采纳的回答

Andrei Bobrov 2014-8-14

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/147653-simple-linear-interpolation-using-interp1#answer_148561

编辑：Andrei Bobrov 2014-8-14

在 MATLAB Online 中打开

time =   [1  2  3  4     6  7  8     10 11 12];
temp =   [10 12 15 13    16 16 18    15 21 20];
points = [1  2  3  4  5  6  7  8  9  10 11 12];
y = interp1(time,temp,points,'linear');