topic Overlaying bar chart and line on one graph with sgplot in Graphics Programming

Overlaying bar chart and line on one graph with sgplot

dal233 — Wed, 20 Mar 2013 19:28:26 GMT

I've been trying to figure out how to have a bar chart (representing exposure) on the second y axis and a line chart (representing frequency) on the first y axis in sgplot. Can anybody help?

Re: Overlaying bar chart and line on one graph with sgplot

AncaTilea — Wed, 20 Mar 2013 19:34:56 GMT

Sure thing.

proc gbarline works wonders for this sort of graphs.

Also, has a magnificent website where you can find plots (with WORKING SAS code)

http://robslink.com/SAS/democd7/aaaindex.htm

Good luck!

Anca.

Re: Overlaying bar chart and line on one graph with sgplot

Rick_SAS — Wed, 20 Mar 2013 19:37:11 GMT

See this example of using PROC SGPLOT:

SAS(R) 9.3 ODS Graphics: Procedures Guide, Third Edition

Re: Overlaying bar chart and line on one graph with sgplot

dal233 — Wed, 20 Mar 2013 19:38:46 GMT

I've just resolved this. I was using a series statement instead of a vline statement for the line graph. If I use vline it works with the y2axis option.

proc sgplot data = test;

vline year / response = frequency y2axis;

vbar year / response = gwp;

run;

Strangely though, the vbar statement does not offer the y2axis option.

Re: Overlaying bar chart and line on one graph with sgplot

DanH_sas — Wed, 20 Mar 2013 19:38:57 GMT

In SAS 9.4 we have added the ability to assign bar charts to secondary axes. In SAS 9.2 and 9.3, you should be able to assign the bar chart (vbar) to the first Y axis and the line chart (vline) to the secondary Y axis. Here is a simple example.

proc sgplot data=sashelp.class;

vbar age / response=height stat=mean;

vline age / y2axis;

run;

Hope this helps!

Dan