Graph with two regression lines - SAS Support Communities

Calcite | Level 5

Calcite | Level 5

Graph with two regression lines

Posted 03-02-2011 05:22 PM (1649 views)

. Message was edited by: Desperate_student

4 REPLIES 4

Fluorite | Level 6

Fluorite | Level 6

Re: Graph with two regression lines

Posted 03-02-2011 05:29 PM (1623 views) | In reply to Desperate_student

If you are using proc gplot look into the overlay option for the plot statement.

Calcite | Level 5

Calcite | Level 5

Re: Graph with two regression lines

Posted 03-02-2011 06:44 PM (1623 views) | In reply to RickM

Thanx will try that, but not sure if it will work!

Calcite | Level 5

Calcite | Level 5

Re: Graph with two regression lines

Posted 03-02-2011 07:31 PM (1623 views) | In reply to Desperate_student

You can use an analysis of covariance to test whether the slopes of the two lines are equal.

Calcite | Level 5

Calcite | Level 5

Re: Graph with two regression lines

Posted 03-02-2011 07:34 PM (1623 views) | In reply to Susan

Thank you for your reply.

I know that, but I really wanted a graph 🙂