Replace NaN with specific value.
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I have many large column matrices (each is ~20k x 1). Some elements of the matrices are NaN. I want to replace them with 0 (or some number). Is there a quick way for that. Looping through each element is a very inefficient process and delays my program. The help is really appreciated.
采纳的回答
yourmatrix(isnan(yourmatrix)) = somevalue;
But, using NaN to mark exceptional values is much better than using 0 or some other special value.
2 个评论
Mehul Agrawal
2016-6-27
Steven Lord
2016-6-27
For a couple releases now the sum function has accepted a flag that lets you specify whether NaN values should be included in the sum (which makes the sum NaN) or excluded (unless all the values being summed are NaN.)
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