Create single array from multiple arrays in struct

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!

2 Comments

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.
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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 Accepted Answer

Presuming the error you got is "Dimensions of arrays being concatenated are not consistent.", all data in column vectors may be concatenated using
allHydro = cat(1,Storms.hydrograph);

1 Comment

Thank you! I knew it had to be simple, but I could not figure it out.

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on 13 Dec 2021

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on 14 Dec 2021

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