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// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) INRIA - Vincent Couvert
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
function t=etime(t1,t0)
// returns the time in seconds that has elapsed between vectors t1 and t0
// t1 and t0 must be six elements long, in the format:
// t = [Year Month Day Hour Minute Second.Milliseconds]
// or, 10 elements long, in the format returned by getdate()
// t = [Year Month ISO_8601_week_number Julian_day Week_Day Day Hour Minute Second Millisecond]
// in this case ISO_8601_week_number Julian_day Week_Day are ignored
// t1 and t0 can also be matrices having each line equal to a vector described above
if type(t1)<>1 then
error(msprintf(gettext("%s: Wrong type for input argument #%d: Real vector expected.\n"),"etime",1));
end
if type(t0)<>1 then
error(msprintf(gettext("%s: Wrong type for input argument #%d: Real vector expected.\n"),"etime",2));
end
if and(size(t1,2)<>[6,10]) then
error(msprintf(gettext("%s: Wrong size for input argument #%d: Must be between %d and %d.\n"),"etime",1,6,10));
end
if and(size(t0,2)<>[6,10]) then
error(msprintf(gettext("%s: Wrong size for input argument #%d: Must be between %d and %d.\n"),"etime",2,6,10));
end
if size(t1,"*")<>size(t0,"*") then
error(msprintf(gettext("%s: Wrong size for input arguments #%d and #%d: Same size expected.\n"),"etime"), 1, 2);
end
if size(t1,2)==10 then
t1(:,3:5)=[]
end
if size(t0,2)==10 then
t0(:,3:5)=[]
end
// Cumulative days per month in a nonleap year
cdm = [0,31,59,90,120,151,181,212,243,273,304,334]
t=0
for k=1:2
if k==1 then
tcur=t1
else
tcur=t0
end
Year=tcur(:,1)
Month=tcur(:,2)
Day=tcur(:,3)
// Make sure month is in the range 1 to 12
Month(Month<1)=1
for kM=1:size(Month,"*")
if Month(kM) > 12 then
Year(kM) = Year(kM) + (Month(kM)-1)/12;
Month(kM) = fix((Month(kM)-1) / 12) + 1;
end
CDM=cdm(Month(kM))
end
tsec = 365.*Year + ceil(Year/4) - ceil(Year/100) + ceil(Year/400) + CDM + Day;
for kM=1:size(Month,"*")
if Month > 2 then
iy=fix(Year)
if fix(iy/4).*4 == iy & fix(iy/100).*100 <> iy | fix(iy/400).*400 == iy then
tsec = tsec+1;
end
end
end
if k==1 then
t=tsec
else
t=t-tsec
end
end
t=86400*t+t1(:,4)*3600-t0(:,4)*3600+t1(:,5)*60-t0(:,5)*60+t1(:,6)-t0(:,6)
if size(t1,2)==7 then
t=t+(t1(:,7)-t0(:,7))*1e-3
end
endfunction
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