206  data ch5;
207  input Rep   Trt Yield;
208  datalines;

NOTE: The data set WORK.CH5 has 12 observations and 3 variables.
NOTE: DATA statement used:
      real time           0.02 seconds
      cpu time            0.00 seconds


221  ;;
222  proc print;
223  *COMMENT:  The proc print statement will print all data;
224  title 'Data for Chapter 5 Example for Comparing Difference Between Two Treatment Means';

225  *COMMENT:  In the title command, the acutal title must be surrounded by single quotes.;

226  run;

NOTE: There were 12 observations read from the data set WORK.CH5.
NOTE: PROCEDURE PRINT used:
      real time           0.01 seconds
      cpu time            0.01 seconds


227  proc sort;
228  by trt;
229  *COMMENT:  When you want to do proc statements for multiple treatments, you need to sort
229! your data first;

NOTE: There were 12 observations read from the data set WORK.CH5.
NOTE: The data set WORK.CH5 has 12 observations and 3 variables.
NOTE: PROCEDURE SORT used:
      real time           0.02 seconds
      cpu time            0.01 seconds


230  proc means maxdec=2 ;
231  by trt;
232  var yield;
233  Title 'Proc Means Output for Descriptive Statistics';
234  Run;

NOTE: There were 12 observations read from the data set WORK.CH5.
NOTE: PROCEDURE MEANS used:
      real time           0.01 seconds
      cpu time            0.01 seconds


235  proc ttest;
236  class trt;
237  *COMMENT:  The class statement tells the computer which variable includes the treatment
237! names;
238  var yield;
239  title 'T-test to compare Treatments 1 and 2';
240  run;

NOTE: There were 12 observations read from the data set WORK.CH5.
NOTE: PROCEDURE TTEST used:
      real time           0.01 seconds
      cpu time            0.01 seconds


241  proc means noprint;
242  by trt;
243  var yield;
244  output out=new mean=meanyld;
245

NOTE: There were 12 observations read from the data set WORK.CH5.
NOTE: The data set WORK.NEW has 2 observations and 4 variables.
NOTE: PROCEDURE MEANS used:
      real time           0.02 seconds
      cpu time            0.02 seconds


246  proc print;
247  *COMMENT:  The statements above are great for producing a new data set based on means from
247! another
248  data set.;
249  title 'Proc Means Statent Used to Produce New Dataset Using Means';
250  run;

NOTE: There were 2 observations read from the data set WORK.NEW.
NOTE: PROCEDURE PRINT used:
      real time           0.00 seconds
      cpu time            0.00 seconds