
85Line-Up Jittered Scatter Plots
• Another way to produce scatter plots for a group (eye and treatment)
without using the attribute map feature is to use 4 scatter statements
with 4 different variables for the y-axis.
5.5 Summary and Discussion
The key to producing a line-up jittered scatter plot is to jitter the data
points based on the number of data at each line-up group and prepare
the line-up jittered dataset for plotting. Detailed algorithms for line-up
jittering are discussed and an SAS macro for line-up jittering is developed
that can be modied and used to produce your own customized line-up
jittered scatter plots.
The attribute map is ...