Matlab find nan

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Help Center Help Center. Determine if any array element is NaN. It returns 0 false if no element is NaN. If A contains complex numbers, anynan A returns 1 if at least one element has a real or imaginary part that is NaN. Create a row vector A. Determine if at least one element of A is NaN.

Matlab find nan

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So I still need the two columns to determine that.

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Help Center Help Center. Infinity results from operations like division by zero and overflow, which lead to results too large to represent as conventional floating-point values. Use the isinf function to verify that x is positive or negative infinity:. The exact bit-wise hexadecimal representation of this NaN value is,. Always use the isnan function to verify that the elements in an array are NaN :. However, in some special cases perhaps due to hardware limitations , MATLAB does not preserve the exact bit pattern of alternate NaN representations throughout an entire calculation, and instead uses the canonical NaN bit pattern defined above. Choose a web site to get translated content where available and see local events and offers.

Matlab find nan

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Main Content. Do you want to open this example with your edits? Toggle Main Navigation. Edited: James Tursa on 21 Mar Input Arguments collapse all A — Input array scalar vector matrix multidimensional array. Walter Roberson on 12 Oct Select a Web Site Choose a web site to get translated content where available and see local events and offers. Note that displaying in the command window is slow. If there are Nans scattered around the matrix, you cannot delete them. Is it really necessary to save the indices in that form? Vote 1. Subir Paul on 26 May So, if the NaN is near the front of the matrix then the mex routine would probably be faster since it short-circuits and avoids the intermediate array. I'm not sure this is really what you want.

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Trial software. For more information, see Tall Arrays. Cancel Copy to Clipboard. MathWorks Answers Support. Without your data I cannot be certain. Search Support Clear Filters. Reload the page to see its updated state. If x is a real scalar, exactly one of isfinite x , isinf x , and isnan x returns logical 1 true. Vote 0. You are now following this question You will see updates in your followed content feed. Show older comments.