ranges of dimensions when using nan

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Asliddin Komilov 2021-5-24

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评论： Asliddin Komilov 2021-5-25

采纳的回答： Jan

Arr.mat

dear community,

I have a 6D result Arr(crb, cefb, crr, crp, ctb, ccb) where Arr(Arr>1)=nan.

How can I find the values of crb, cefb, crr, crp, ctb and ccb, where Arr is not nan?

thanks

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KSSV 2021-5-24

Have a look on the function isnan.

Asliddin Komilov 2021-5-24

I have attached the data, and isnan did not handle the 6D (or I don't know how to do it)

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Jan 2021-5-24

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isnan is the function, which replies a logical array with the same dimension as the input and TRUE values, where the input has NaN elements. It does handle 6 dimensional arrays.

siz  = [2,3,4,5,6,7];
Data = ones(siz);  % Some test data
Data(rand(siz) > 0.5) = nan;
index = isnan(Data)

Now use either the logical array directly, or call find() to obtain the index vectors. Maybe ind2sub helps you to get the indices for the different dimensions.