In Graph Builder, there is a special color ("Missing"), which is used if the entry of the color column is empty in the respective row.
Very convenient.
This functionality is enabled for Points, Bar, Heatmap and Treemap plots, if a column with modeling type ordinal or nominal is used.
This functionality is enabled for Points, Bar, and Treemap plots, if a column with modeling type continuous is used.
On the other hand, this functionality is not enabled by default for Heatmap plots if a column with modeling type continuous is used.
What do I have to do to enable it?
top part: Points (points with "missing" color)
bottom part: Heatmap (tiles with "missing" color are missing)
Names Default to Here(1);
dt = Open( "$SAMPLE_DATA/Big Class.jmp" );
dt << New Column( "one",<<Set Each Value( 1 ) );
dt:age[5::20]=.;
Graph Builder(
Variables( X( :name ), Y( :one ), Y( :one ), Color( :age ) ),
Elements(
Position( 1, 1 ),
Points( X, Y, Legend( 12 ), Jitter( "None" ) )
),
Elements( Position( 1, 2 ), Heatmap( X, Y, Legend( 7 ) ) ),
SendToReport(
Dispatch(
{},
"Graph Builder",
FrameBox,
{Marker Size( 20 ), Marker Drawing Mode( "Normal" )}
)
)
);
wait(2);
dt:age << Set Modeling Type( "Continuous" );
update: In Jmp18, missing values will be displayed with color "missing":
Hm, I had some cases where ...
... the grass has a nice greenish color on the old side of the river
Maybe in a future release there is an option to select one of the two options ...