Weighted Average for a certain depth

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tqou37 2023-4-4

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https://ww2.mathworks.cn/matlabcentral/answers/1941459-weighted-average-for-a-certain-depth

编辑： tqou37 2023-5-24

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Answer 1

Sulaymon Eshkabilov 2023-4-5

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https://ww2.mathworks.cn/matlabcentral/answers/1941459-weighted-average-for-a-certain-depth#answer_1209104

For the weighted mean calcution - see this MATLAB submission -

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Answer 2

Peter Perkins 2023-4-5

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https://ww2.mathworks.cn/matlabcentral/answers/1941459-weighted-average-for-a-certain-depth#answer_1210044

在 MATLAB Online 中打开

At one point you say "weighted soil moisture average to a given depth" and at another you say "soil moisture depth average". You don't say anything about what weights you are talking about. The only sense I can make out of this is that you mean the soil moisture *interpolated* at a specified depth, given multiple measurements on each day at fixed depths, averaged within day at each depth.

Maker a timetable TT of the raw moisture measurements, with five variables, one for each depth. Then

TTdaily = retime(TT,"daily","mean");
moisture = TT.Variables
depth = [5 15 30 50 75];
depths = [21.50 32.48];
interpMoisture = interp1(moisture,depth,depths)

If you mean something other than that, you need to be a lot more forthcoming.

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tqou37 2023-4-5

Thanks for the advice. I added more info to not be so vague.

Peter Perkins 2023-4-6

You need to be a lot more clear. You keep saying "average", but you've never said "interpolate", which is what I think you want. You've said "three soil moisure tables" but only shown one. I'm guessing what you want is very similar to what I already suggested, but I'm guessing.

Show a worked example of exactly what you are starting with, the calculations, and what you want to end up with.

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