Language Reference

GPOINT Call

plots points

CALL GPOINT( , , symbol<, color<, height<, window>

           <, viewport>);

The inputs to the GPOINT subroutine are as follows:

is a vector containing the coordinates of points.

is a vector containing the coordinates of points.

symbol

is a character vector or quoted literal that specifies a valid plotting symbol or symbols.

color

is a valid SAS color, where color can be specified as a quoted text string (such as 'RED'), the name of a character matrix containing a valid color as an element, or a color number (such as 1). A color number refers to the th color in the color list.

height

is a numeric matrix or literal specifying the character height.

window

is a numeric matrix or literal specifying a window. This is given in world coordinates and has the form

{minimum-x minimum-y maximum-x maximum-y}

viewport

is a numeric matrix or literal specifying a viewport. This is given in normalized coordinates and has the form

{minimum-x minimum-y maximum-x maximum-y}

The GPOINT subroutine marks one or more points with symbols. The and vectors define the points where the markers are to be placed. The symbol and color arguments can have from one to as many elements as there are well-defined points. The coordinates in use for this graphics command are world coordinates.

In the example that follows, points on the line are generated for and then plotted with the GPOINT call:

  
    x=30:80; 
    y=x; 
    call gpoint(x,y); 
    call gshow;
 

As another example, you can plot symbols at specific locations on the screen by using the GPOINT subroutine. To print i in the lower-left corner and j in the upper-right corner, use the following statements:

  
    call gpoint({10 80},{5 95},{i j}); 
    call gshow;
 

See Chapter 12 for examples using the GPOINT subroutine.