You can use the following methods to plot groups using **PROC SGPLOT** in SAS:

**Method 1: Plot Each Group in Separate Charts**

**/*create multiple plots that show histogram of points for each team*/
proc sgplot data=my_data;
by team;
histogram points;
density points / type=kernel;
run;
**

The **by** statement tells SAS to create a separate histogram for each unique value in the **team** column.

**Method 2: Plot Each Group in One Chart**

**/*plot histogram of points for each team on one chart*/
proc sgplot data=my_data;
histogram points / group=team;
density points / type=kernel group=team;
run;**

The **group** statement tells SAS to display a separate histogram for each unique value in the **team** column overlaid on the same chart.

The following examples show how to use each method with the following dataset in SAS:

**/*create dataset*/
data my_data;
input team $ points;
datalines;
A 29
A 23
A 20
A 21
A 33
A 35
A 31
B 21
B 14
B 15
B 11
B 12
B 10
B 15
;
run;
/*view dataset*/
proc print data=my_data;**

**Example 1: Use PROC SGPLOT to ****Plot Each Group in Separate Charts**

**Plot Each Group in Separate Charts**

We can use the **by** statement in **PROC SGPLOT** to create individual histograms that show the distribution of **points** for each **team**:

**/*create multiple plots that show histogram of points for each team*/
proc sgplot data=my_data;
by team;
histogram points;
density points / type=kernel;
run;**

The first histogram displays the distribution of points for team A and the second histogram displays the distribution of points for team B.

**Note**: The **density** statement is optional, but it displays a density curve for each histogram which can be a helpful way to summarize the shape of the distribution.

**Example 2: ****Use PROC SGPLOT to ****Plot Each Group in One Chart**

**Plot Each Group in One Chart**

We can use the **group **statement in **PROC SGPLOT** to create one chart that contains overlaid histograms of the distribution of **points** for each **team**:

**/*plot histogram of points for each team on one chart*/
proc sgplot data=my_data;
histogram points / group=team transparency=0.5;
density points / type=kernel group=team;
run;**

The blue histogram displays the distribution of points values for team A and the red histogram displays the distribution of points values for team B.

The benefit of using this approach is that we can quickly compare the distribution of **points** values for each **team** since each histogram is placed on the same chart.

**Note**: The **transparency** argument makes the histograms transparent and easier to read when they overlap. The closer you set this value to **1**, the more transparent the histograms become.

**Additional Resources**

The following tutorials explain how to create other charts in SAS:

How to Create Line Plots in SAS

How to Create Boxplots by Group in SAS

How to Create a Scatterplot with Regression Line in SAS