Scatterplot

• Arguments: Two numerical variables

• Argument menu:

  • Example:

    

    ---> images/plot-scatterplot-arg-menu.png <---

  • Only numerical variables are listed in this menu.

  • This argument menu allows the selection of 1 variable as the X variable to be plotted along the horizontal axis and 1 variable as the Y variable to be plotted along the vertical axis.

  • If Log? is checked, log₂-transformed X and Y variables will be used to draw a scatterplot or scatterplot trellis display.

  • If Trellis? is checked, a scatterplot trellis display will be drawn.

• Available modes: , , , and .

• Housekeeping functions:

  Activate Circle Antialiasing Globally	Add Lowess Curve	Categorize by Colors...
  Comment...	Copy	Linear Regression
  Save as PNG Image...	Set Axis Labels...	Set Background...
  Set Screen Size Same as...	Set as Default Plot Size	Set Drawing Ranges Same as...
  Shrink to Min Drawing Ranges	Summarize Data	Switch XY
  Use Log Scale	Use Original Scale

  where Linear Regression is a submenu with the following menu times

  Add Linear Regression Line		Show Linear Regression Summary		Show Residual Histogram
  Show Residual Normal Q-Q Plot		Show Residual Plot...

• Example: Figure 11-3

  Figure 11-3. Scatterplot

  

  ---> images/plot-scatterplot-example.png <---

Each point icon in a scatterplot represents an observation object. The color, shape, and size of a point icon is determined by the observation object it's representing. A point icon can be painted, thereby changing the color property of the corresponding observation.