Calendar date to Day of the year

This function converts the calendar date to Julian Date.

% This function will convert the calendar date to Julian Date.
%
% For example: suppose I have a date from a leap year such as 1st March
% 1904.
% The corresponding Julian Date of the calender date will be 61. Similarly,
% if I have a date of 1st March 1905 from a regular year, the Julian Date
% will be 60.
%
% Input: date: it is an array with three columns. The first, second and
% third column corresponds to year, month and day respectively.
%
% For example: Col.1 Col.2 Col.3
% Year Month Day
%
% date= 1904 3 1
% 1905 3 1
%
% Output: jd: values in the rows indicates the Julian date of every
% elements of the date input vector.
%
%
% Please Note that in this function there are two .mat file namely
% "leap_year" and "normal_year". Keep it in the same folder of the data
% analysis for working of this code.