/*-----------------------------------------------------------------
            S A S   S A M P L E   L I B R A R Y                   
                                                                  
      NAME: TREGEX3                                               
     TITLE: Documentation Example 3 for PROC TRANSREG             
   PRODUCT: STAT                                                  
    SYSTEM: ALL                                                   
      KEYS: regression analysis, transformations                  
     PROCS: TRANSREG                                              
      DATA:                                                       
                                                                  
   SUPPORT: saswfk                UPDATE: September 16, 2013      
       REF: PROC TRANSREG, EXAMPLE 3                              
      MISC:                                                       
-----------------------------------------------------------------*/

title 'Atmospheric Pressure Changes Between'
      ' Easter Island & Darwin, Australia';
ods graphics on;

proc transreg data=sashelp.enso;
   model identity(pressure) = pbspline(year);
run;

proc transreg data=sashelp.enso;
   model identity(pressure) = pbspline(year / sbc);
run;

proc transreg data=sashelp.enso;
   model identity(pressure) = pbspline(year / sbc lambda=2 10000 range);
run;

proc transreg data=sashelp.enso;
   model identity(pressure) = pbspline(year / sbc lambda=.1 .5 1 5
                                       10 50 100 500 to 2500 by 500);
run;