# symfld

How to download and try this example

    Usage: pl -gif symfld.htm
    Demonstrates use of symfield for having the appearance of a scatterplot symbol
    controlled by a data field.

    // first define legend explicitly.. tags must match data field contents..
    #proc legendentry
    sampletype: symbol
    tag: A
    details: shape=circle style=filled fillcolor=red radius=0.04
    label: Red circles

    #proc legendentry
    sampletype: symbol
    tag: B
    details: shape=triangle style=filled fillcolor=green radius=0.06
    label: Green triangles

    // get the data..
    #proc getdata
    data:	3 7	A
    	4 6	B
    	2 8	A
    	2 8	A
    	2 8	B
    	2 8	B
    	2 8	B
    	1 6	A

    // define plotting area..
    #proc areadef
    rectangle: 1 1 4 4
    xrange: 0 10
    yrange: 0 10
    frame: color=gray(0.8)

    // render scatterplot..
    #proc scatterplot
    xfield: 1
    yfield: 2
    symfield: 3

    // display legend..
    #proc legend
    location: min+0.3 min-0.3