DOY2DATE.m will convert a vector of day of year numbers and years
and convert them to MATLAB date format.

Sample Call:
doyV = [54;200.4315];
yearV = [2009;2009];
[dateV] = doy2date(doyV,yearV);

Inputs:
doyV -> vector of day of year numbers (n x 1)
yearV -> vector of years (n x 1)

Outputs:
dateV -> vector of MATLAB dates (n x 1)

function [dateV] = doy2date(doyV,yearV)
z = zeros(length(yearV),5);
dv = horzcat(yearV,z);
dateV = doyV + datenum(dv);