Create single array from multiple arrays in struct

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Autumn P 2021-12-13

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https://ww2.mathworks.cn/matlabcentral/answers/1610155-create-single-array-from-multiple-arrays-in-struct

评论： Autumn P 2021-12-14

HI, I am rather new to Matlab and am trying to perform some statistics on data I have in a structure. I have several hundred arrays of varying length for each index in the structure representing water levels from a storm (Storm.hydrograph). I want to be able to get the mean and standard deviation for all of the values from all storms. To do this, I am trying to generate a single list/array of all the water level points from every storm.

I have tried :

allHydro = [Storms.hydrograph]

but I get error messages because each of the arrays are of unique length.

Is there a way to get them all in one array? Or is there a way to perform statistics on them as they are in the structure? (I have already done statistics on them individually, but want statistics of all the values combined).

Thank you!

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Jan 2021-12-13

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You have to clarify what you want to do mathematically. If the different arrays have different sizes, it ist not clear, what you want to do.

Storms(1).hydropgraph = 1:10
Storms(2).hydropgraph = 2:21

So what ou you wnt to achieve now? "Statistics over them" is not defined uniquely.

Autumn P 2021-12-14

They're all 1:n arrays. Where n varies. I want one big list of all the values and then I am going to get the mean and standard deviation of all said values.

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