Is there any efficient way to draw broken axis graph in SAS?

[HongqiuGu]

Is there any efficient way to draw broken axis graph in SAS?

Just as follow:

[Jay54]

With SAS 9.4M1, you can request a broken axis for one axis at a time.  Here is a blog article I wrote on this topic: Broken Axis - Graphically Speaking.  All you have to do is provide the axis ranges you want to retain.

If you don't have SAS 9.4M1, you can consider some of the techniques I discuss in this article.:

Broken Y-Axis - Graphically Speaking

[HongqiuGu]

Thanks Sanjay.

Graphically Speaking is a very nice blog, I have learn a lot from it .

For broken axis with double slash, like this:  "// ",  drawtext statement in PROC Template would be better.

Here is an example:

proc template;

define statgraph sgdesign;

dynamic _SEX _HEIGHT;

begingraph;

   entrytitle halign=center 'Height by gender';

   entryfootnote halign=left 'Broken axis demo';

   layout lattice / rowdatarange=data columndatarange=data rowgutter=10 columngutter=10;

      layout overlay /

         yaxisopts=( type=linear

                     offsetmin=0.0

                     griddisplay=on

                     linearopts=( viewmin=0.0

                                  viewmax=80.0

                                  minorgrid=OFF

                                  minorticks=OFF

                                  tickvaluepriority=TRUE

                                  tickvalueformat=BEST6.

                                  tickvaluelist=(40.0 50.0 60.0 70.0 80.0)

                                  tickdisplaylist=("0" "50" "60" "70" "80")

                                 )

                   );

         boxplot x=_SEX y=_HEIGHT / name='box' groupdisplay=Cluster;

         drawrectangle x=58 y=128 width=4 height=4 /

            display=all outlineattrs=(color=white) fillattrs=(color=white)

            transparency=0  drawspace=graphpixel anchor=left;

         drawtext textattrs=(size=12pt) "/" / x=55 y=138  rotate=-45

            drawspace=graphpixel anchor=left border=false TRANSPARENCY=0;

             drawtext textattrs=(size=12pt) "/" / x=55 y=120  rotate=-45

            drawspace=graphpixel anchor=left border=false TRANSPARENCY=0;

      endlayout;

   endlayout;

endgraph;

end;

run;

proc sgrender data=SASHELP.CLASS template=sgdesign;

    dynamic _SEX="SEX" _HEIGHT="HEIGHT";

run;

It seems that  you'll come to China on September 4.

Hope to see you!

[Jay54]

The benefit of this graph is not clear to me.  There is no data below the break.  Why is this better than just a Y axis that starts at 45?

[HongqiuGu]

Generally, Y axis starts from non –zero is not suggested, especially for bar chart. Because it often brings us an illusion vision.