# vector3

How to download and try this example

    Usage: pl -gif vector3.htm
    Demonstrate proc vector.

    #proc getdata
    fieldnameheader: yes
    data:
    name	y	dir	class
    A	0	-12	A
    B	0	10	A
    C	0	8	B
    D	0	-6	A
    E	0	-3	A
    F	0	0	B
    G	0	10	B
    H	0	-7	B
    I	0	11	A

    #proc areadef
    rectangle: 1 1 4 2
    xrange: categories
    xcategories: datafield=1
    xaxis.stubs: usecategories
    xaxis.stubdetails: size=12 color=green
    xaxis.tics: none
    yrange: 0 1

    #proc legendentry
    sampletype: line
    label: class A
    tag: A
    details: color=blue

    #proc legendentry
    sampletype: line
    label: class B
    tag: B
    details: color=red

    #proc vector
    xfield: name
    yfield: y
    dirfield: dir
    constantlen: 0.7
    colorfield: class

    #proc legend
    location: max+0.5 max-0.5