Can we sum a series of values,even some of them are "NaN"?If i want to do it,how can i do?
    1 visualizzazione (ultimi 30 giorni)
  
       Mostra commenti meno recenti
    
    yang-En Hsiao
 il 26 Mar 2019
  
    
    
    
    
    Commentato: Walter Roberson
      
      
 il 26 Mar 2019
            I get a series answer of optimal problem in several times,and i want to sum of them and average them,however, some of them are "NaN",can i or how to write a code to ignore those "NaN" and sum the others which is not "NaN" ?
The version of matlab is 2015a
0 Commenti
Risposta accettata
  Walter Roberson
      
      
 il 26 Mar 2019
        You did not indicate your MATLAB version.
For a couple of years now, you have been able to write sum(TheArray, 'omitnan') . 
Before that, the easiest approach was to use the Statistics toolbox nansum()
mean() these days also has 'omitnan' flag, and in older versions the Stats tool was nanmean()
2 Commenti
  Walter Roberson
      
      
 il 26 Mar 2019
				That last line returns 0 for me. A(end) is Nan, and adding nan to each A(1:9) entry gives nan for each result, so you would be applying nansum to an all-nan vector, and the result of that is going to be 0.
Più risposte (0)
Vedere anche
Categorie
				Scopri di più su NaNs in Help Center e File Exchange
			
	Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!

