Boxplot

[laurenhosking]

How does one interoperate a blog plot. Mainly I want to know which part shows me the mean. 

[PeterClemmensen]

You can do like this. The diamond represents the mean

proc sgplot data=sashelp.iris;
   vbox SepalLength / category=Species;
run;

[laurenhosking]

Is the overall mean the line that goes through the square? I want to compare two means using my boxplot.

[seeff]

The line is the median. The diamond is the mean. 

[PeterClemmensen]

The line is the median. the diamond is the mean for each group.

What is your actual purpose here? To compare two means of groups or to compare group means to overall mean?

[laurenhosking]

It’s to compare the means between 2 different groups