If the data is not read from a file, it can be provided via a @math{T}x@math{N} matrix as the first argument to @code{dseries}'constructor,with@math{T}representingthenumberofobservationson@math{N}variables.Thesecondargument,@var{INITIAL_DATE},canbeeithera@datesobjectrepresentingtheperiodofthefirstobservationorastringwhichwouldbeusedtoinstantiatea@datesobject.Thethirdargument,@var{LIST_OF_NAMES},isa@math{N}by@math{1}cellofstringswithoneentryforeachvariablename.Thefinalargument,@var{LIST_OF_TEX_NAMES},isa@math{N}by@math{1}cellofstringscomposedofthe@LaTeX{}namesassociatedwiththevariables.Inputargumentsthreeandfourareoptional.

If the data is not read from a file, it can be provided via a @math{T}x@math{N} matrix as the first argument to @code{dseries}' constructor, with @math{T} representing the number of observations on @math{N} variables. The second argument, @var{INITIAL_DATE}, can be either a @dates object representing the period of the first observation or a string which would be used to instantiate a @dates object. The third argument, @var{LIST_OF_NAMES}, is a @math{N} by @math{1} cell of strings with one entry for each variable name. The final argument, @var{LIST_OF_TEX_NAMES}, is a @math{N} by @math{1} cell of strings composed of the @LaTeX{} names associated with the variables. Input arguments two, three and four are optional. The default value for @var{INITIAL_DATE} is @code{1Y}.