how to convert datenum?

11 vues (au cours des 30 derniers jours)
Salman
Salman le 27 Mai 2014
Commenté : Salman le 27 Mai 2014
I have many time-datenum codes from olr.day.mean.nc. the one is 17298624 for the right result conver to datestring : june 6, 1974. but I got the wrong result. please help
THX
  2 commentaires
the cyclist
the cyclist le 27 Mai 2014
I don't know what olr.day.mean.nc is. What makes you think it is equivalent to a MATLAB datenum?
Star Strider
Star Strider le 27 Mai 2014
I did a search for it. Go to NOAA Daily (non-interpolated) Outgoing Longwave Radiation (OLR) and find appropriate software to read the files. Another possible source of information is Re: Rewriting nc files.
Have fun!

Connectez-vous pour commenter.

Réponse acceptée

the cyclist
the cyclist le 27 Mai 2014
Modifié(e) : the cyclist le 27 Mai 2014
Thanks to Star Strider's investigative work, I found this page that says that the OLR value is the number of hours since 1-1-1 00:00:00. This suggests to me that your conversion should be
datestr(17298624/24+365)
That's a few days off from the date you specify, but it is close.
Also, this page specifically discusses use of MATLAB to read files from this data source.
  1 commentaire
Salman
Salman le 27 Mai 2014
thank u so much

Connectez-vous pour commenter.

Plus de réponses (0)

Catégories

En savoir plus sur Time Series Objects dans Help Center et File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by