Create the output objects. The GLM procedure creates the output objects. The Plant_Stats data set contains the statistical information that PROC GLM uses to create the output objects. For information about viewing a record of each output object that is created, see the ODS TRACE statement.

proc glm  data=plant_stats; 
  class month;
  model age age2 age3=month / nouni; 
  manova h=month /print;
run;