How to remove NaNs from a structure

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Casey McMahon 2019-7-8

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编辑： madhan ravi 2019-7-8

Hi,

I have a structure that has eighteen variables (columns) and 594 participants (rows) (18 x 594), the first two variables are strings, the next sixteen are doubles.

My goal is to identify the NaNs and then remove the whole row.

This is what I have from when I did work with a matrix:

countNans = sum(isnan((DATA),2); %Counts missing values (nans) per row over the 2nd dimension
idClean = find(countNans==0); %Only keep rows of participants with all data
cleanData = cleanData(idClean,:);

However, this method is no longer working, with MATLAB saying that isnan does not work for structures.

Thanks!

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madhan ravi 2019-7-8

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Answer 1

Abhishek Kumar 2019-7-8

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https://ww2.mathworks.cn/matlabcentral/answers/470621-how-to-remove-nans-from-a-structure#answer_382311

编辑：madhan ravi 2019-7-8

在 MATLAB Online 中打开

A workaround for this would be converting the struct to matrix and then get rid of the NaNs and if you need it again convert it to struct.

cell2mat(struct2cell(YourStructure)) % this will convert your structure to matrix
cell2struct(cellArray, fields, dim) % this will convert it again to struct