Constructor.
Constructors
Plot the contents of a Matrix
| x | abscissa values, must be one-dimensional (row or column vector) | |
| y | ordinate values, values are plotted according to the orientation of x | |
| dotsize | size of the plot symbol (0 for none) | |
| type | type of plot symbol (0 circle, 1 square, 2 diamond, 3 uptriangle, 4 downtriangle, 5 sphere) | |
| Matrix | of size (4,1) containing RGBA values of the plot | 
Plot the contents of a Matrix, abscissa is computed from index, ordinates are plotted over the larger dimension of s
| dotsize | size of the plot symbol (0 for none, negative for symbol only, positive for symbol+line) | |
| type | type of plot symbol (0 circle, 1 square, 2 diamond, 3 uptriangle, 4 downtriangle, 5 sphere) | |
| Matrix | of size (4,1) containing RGBA values of the plot | 
Plot a single point in 2D
| x | abscissa | |
| y | ordinate | |
| dotsize | size of the plot symbol (0 for none) | |
| type | type of plot symbol (0 circle, 1 square, 2 diamond, 3 uptriangle, 4 downtriangle, 5 sphere) | |
| Matrix | of size (4,1) containing RGBA values of the plot symbol | 
 1.5.6