% -*- texinfo -*-
% @deftypefn {Function File} {@var{h} =} stem3 (@var{x}, @var{y}, @var{z}, @var{linespec})
% Plot a three-dimensional stem graph and return the handles of the line
% and marker objects used to draw the stems as 'stem series' object.
% The default color is @code{'r'} (red). The default line style is
% @code{'-'} and the default marker is @code{'o'}.
%
% For example,
% @example
% @group
% theta = 0:0.2:6;
% stem3 (cos (theta), sin (theta), theta)
% @end group
% @end example
%
% @noindent
% plots 31 stems with heights from 0 to 6 lying on a circle. Color
% definitions with rgb-triples are not valid~
% @seealso{bar, barh, stem, plot}
% @end deftypefn