What should I do for NaN values?

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Sukru Yavuz 2018-3-13

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https://ww2.mathworks.cn/matlabcentral/answers/387986-what-should-i-do-for-nan-values

评论： Stephen23 2018-3-13

I have an 1x507 array with NaN values and I am using this array for another calculation. That's why I think these are effecting my calculation. What should I do about them? Should they stay as they are or I should do something?

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Sukru Yavuz 2018-3-13

编辑：Sukru Yavuz 2018-3-13

I need them for my calculation. I don't need to count them. I need to calculate the sums of all 507 columns and save them as a table. Which is again equal to NaN. I think the numbers are very very very lower than zero that's why they are NaN.

likelihood(nn) = multiplycolumns(nn) * bolumler{nn}; (After this step the array has multiple NaN and Inf.) likelihoodsums = sum(likelihood)

Stephen23 2018-3-13

"What should I do about them? Should they stay as they are or I should do something?"

Why do you assume that you have to "do something" about them? NaN values are there for a reason, and it is usually a bad strategy to turn NaN values into some fake data values (e.g. 0): that would probably distort your calculations even more.

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