Line plots

We will explore the most basic format of the line plot on a single axis and move on to exploring a few more aspects of this chart in this section. Use the following query to create a line chart where we are interested in finding out the frequency of the Age variable:

Proc SGPLOT Data=Class;
  Vline Age;
  Title 'Basic Form of Line Chart using SGPLOT';
Run;

We get the following plot as the output:

There are only four data points for Age, and the y axis has the frequency of each data point.

The preceding chart only contains one series. We will not get a meaningful output if we use the following similar code for the Class dataset. Let's use the Cost_Living dataset we first used in Chapter 1, Introduction to SAS Programming, to plot a line chart with multiple series:

Proc SGPLOT Data=Cost_living;
  Series X=City Y=Index / Legendlabel="Current Yr Index...