How to create monthly 'day of the year' numbers

Forum|Forum|15 years ago
October 13, 2010
3 replies
2981 views

DaysInMonth := (31 29 31 etc)

Jan := 1..31

Feb := 32..59

Mar := 60..90

Source file for M14 is attached

1_PSA-Sun-position-and-Intensity-calculator2-xmcd.zip

Other

Best answer by Ninetrees

It depends on what you intend to do with the data...(and you might want to post excerpts of large files that illustrate your point or need...)

You could create an array DaysInMonth 0..12 of ( 0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31)

and this one

JulianDays array [0..12] of (0, 31, 59, 90,120,151,181,212,243,273,304,334,365)

Then it's up to you to use them...for example (do you intend to do real date stuff with them? leap years, etc?) Feb 2 is DaysInMonth[1 + 2 to get the Julian day of the year. I wouldn't be surprised to find that someone has already addressed this in the forum...

~R~

N

Ninetrees

Answer

3-Newcomer

It depends on what you intend to do with the data...(and you might want to post excerpts of large files that illustrate your point or need...)

You could create an array DaysInMonth 0..12 of ( 0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31)

and this one

JulianDays array [0..12] of (0, 31, 59, 90,120,151,181,212,243,273,304,334,365)

Then it's up to you to use them...for example (do you intend to do real date stuff with them? leap years, etc?) Feb 2 is DaysInMonth[1 + 2 to get the Julian day of the year. I wouldn't be surprised to find that someone has already addressed this in the forum...

~R~