GPLOT Procedure

Example 1: Generating a Simple Bubble Plot

Features:

BUBBLE statement option: HAXIS=

Other features:

GOPTIONS statement option: BORDER

AXIS statement

FORMAT statement

Sample library member:

GPLBUBL1

This example shows a bubble plot in which each bubble represents a category of engineer. The plot shows engineers on the horizontal axis and average salaries on the vertical axis. Each bubble's vertical location is determined by the average salary for the category. Each bubble's size is determined by the number of engineers in the category: the more engineers, the larger the bubble.

Program

goptions reset=all border;

data jobs;
   length eng $5;
   input eng dollars num;
   datalines;
Civil 27308 73273
Aero  29844 70192
Elec  22920 89382
Mech  32816 19601
Chem  28116 25541
Petro 18444 34833
;

title1 "Member Profile";
title2 "Salaries and Number of Member Engineers";

axis1 offset=(5,5);

proc gplot data=jobs;
   format dollars dollar9.;
   bubble dollars*eng=num / haxis=axis1;
run;
quit;

Program Description

Set the graphics environment.

goptions reset=all border;

Create the data set. The data set JOBS contains average salary data for several categories of engineer. It also indicates the number of engineers in each category.

data jobs;
   length eng $5;
   input eng dollars num;
   datalines;
Civil 27308 73273
Aero  29844 70192
Elec  22920 89382
Mech  32816 19601
Chem  28116 25541
Petro 18444 34833
;

Define titles.

title1 "Member Profile";
title2 "Salaries and Number of Member Engineers";

Define axis characteristics. The OFFSET= option specifies an offset for the tick marks so that bubbles near an axis are not clipped.

axis1 offset=(5,5);

Generate bubble plot. The HAXIS= option assigns the AXIS1 statement to the horizontal axis. The salary averages are assigned a dollar format.

proc gplot data=jobs;
   format dollars dollar9.;
   bubble dollars*eng=num / haxis=axis1;
run;
quit;