How do I average a 5-dimensional array?

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NA 2020-8-15

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编辑： NA 2020-8-15

Hi All,

I have a 5-D array that is 244 x 16 x 10 x 4 x 5, the '244 x 16' is data collected over time; the '10' is the number of trials; the '4' is number of experiments and the '5' is the number of participants. In other words, for every participant, I conducted 4 experiments, where I collected 10 trials of 244 x 16 data.

I would like to mean the number of trials for every experiment per participant, though I am having difficulty doing this. I have tried:

m = squeeze(mean(data,3)) %data is 244x16x10x4x5

However, when I plot the data (244 x 16) using a nested for loop (to plot per participant per experiment), my plots look completely off, suggesting that I may have averaged the data incorrectly.

Can someone please advise me if I have averaged my data incorrectly (I am assuming that I have)?

Thank you in advance

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Bruno Luong 2020-8-15

One thing I would suggest is do not use SQUEEZE command, since you might find SQUEEZE does something you won't expect if one of dimension become scalar and you don't anticipate that to happens.

Use RESHAPE.

NA 2020-8-15

编辑：NA 2020-8-15

Appreciate your feedback. I've only been using MATLAB for a few months, so there's quite a bit of a learning curve. I will take your advice on board and apply it on my current code, and use it for future reference. Thank you :)

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