How to avoid memory problem while processing huge table?

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Nitinkumar Ambekar 2016-8-31

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https://ww2.mathworks.cn/matlabcentral/answers/301448-how-to-avoid-memory-problem-while-processing-huge-table

评论： Nitinkumar Ambekar 2016-9-1

I have a huge observation table with around 30 Lacs of rows and 12 columns. While training knn classifier in 2016a version, I am getting errors related to memory. Is there any way to avoid this? I have tried to reduce rows but it's affecting the output quality.

Each row in table is a pixel and it's other values as features in columns. In one set of MRI scan, there are around 20 images of 512x512, I am loading one set for creating observation table. Is there another way to pass large amount of data to knn classifier?