- First quarter, Q1: 1 January – 31 March (90 days or 91 days in leap years)
- Second quarter, Q2: 1 April – 30 June (91 days)
- Third quarter, Q3: 1 July – 30 September (92 days)
- Fourth quarter, Q4: 1 October – 31 December (92 days)
How is "quartely" defined in the function retime?
3 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Fabrice Lambert
le 29 Mai 2020
Commenté : Fabrice Lambert
le 30 Mai 2020
Hi. I am using retime to get quarterly mean data from irregularly distributed measurements:
yTT = retime(xTT,'quarterly',@nanmean);
My first measurement is on the 1st of April. The new yTT timetable has now timesteps at April, July, September, and January. My question is now are these quarterly values means of the widely used Mar-Apr-May, Jun-Jul-Aug, Sep-Oct-Nov, and Dec-Jan-Feb? Or is the April quarterly value an average of Apr-May-Jun, and so on?
0 commentaires
Réponse acceptée
Adam Danz
le 29 Mai 2020
According to Wiki,
While in the Chinese calendar, the quarters are traditionally associated with the 4 seasons of the year:
The months you see are the first month within the quarter.
5 commentaires
Adam Danz
le 30 Mai 2020
Modifié(e) : Adam Danz
le 30 Mai 2020
You're exactly right. That section of the code shifts the starting time of the timetable to the nearest quarter and then increments by 3-months from there.
I also agree that the documentation could be clearer. If you go to the retime() and synchronize() documentation pages online and scroll to the bottom, you can give those pages a star rating and then a window will appear allowing you to give feedback. I'll make this suggestion on both pages (you could, too, if you'd like).
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Dates and Time 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!