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How to replace vector value '0' to NaN( 0 -> Nan)

48 vues (au cours des 30 derniers jours)
Jingyu Yang
Jingyu Yang le 31 Août 2020
Commenté : Jingyu Yang le 6 Sep 2020
If my vector is like
For example ) If my vector is like "Distance = { 0 1 2 3 0 4 0 5 0 6 7 8 0 9 10 } "...
And What I want is "Distance = { Nan 1 2 3 Nan 4 Nan 5 Nan 6 7 8 Nan 9 10}";
Literally, I want to change value 0 to value Nan.
  1 commentaire
Stephen23
Stephen23 le 31 Août 2020
There does not seem to be any benefit here to using a cell array, your code will be simpler and much more efficient if you just use a basic numeric vector:

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Réponses (1)

Alan Stevens
Alan Stevens le 31 Août 2020
>> Distance = [0 1 2 3 0 4 0 5 0 6 7 8 0 9 10]
Distance =
0 1 2 3 0 4 0 5 0 6 7 8 0 9 10
>> Distance(Distance==0)=NaN
Distance =
NaN 1 2 3 NaN 4 NaN 5 NaN 6 7 8 NaN 9 10
NB Just use square brackets to define a vector, unless you really want to set it up as a series of cells.
  2 commentaires
Vladimir Sovkov
Vladimir Sovkov le 31 Août 2020
If the cell array is what really wanted, use the function cell2mat to first convert it to the double array, do with it what Alan recommended, then convert it back to the cell array with the function mat2cell. In the Alan code, if you like it, you can also use Distance(~Distance)=NaN instead of Distance(Distance==0)=NaN.
Jingyu Yang
Jingyu Yang le 6 Sep 2020
How about in time table?

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