?? jd2doy.m
字號:
function [doy,yr]=jd2doy(jd);% JD2DOY Converts Julian date to year and day of year.% . Non-vectorized version. See also CAL2JD, DOY2JD,% GPS2JD, JD2CAL, JD2DOW, JD2GPS, JD2YR, YR2JD.% Version: 24 Apr 99% Usage: [doy,yr]=jd2doy(jd)% Input: jd - Julian date% Output: doy - day of year% yr - yearif nargin ~= 1 warning('Incorrect number of arguments'); return;endif jd < 0 warning('Julian date must be greater than or equal to zero'); return;end[yr,mn,dy] = jd2cal(jd);doy = jd - cal2jd(yr,1,0);
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