
DIFFERENCE OF MEDIANName:
For the difference of medians, the median is computed for two samples and then their difference is taken.
<SUBSET/EXCEPT/FOR qualification> where <y1> is the first response variable; <y2> is the first response variable; <par> is a parameter where the computed difference of the meidans is stored; and where the <SUBSET/EXCEPT/FOR qualification> is optional.
LET A = DIFFERENCE OF MEDIAN Y1 Y2 SUBSET X > 1
SKIP 25 READ IRIS.DAT Y1 TO Y4 X . LET A = DIFFERENCE OF MEDIAN Y1 Y2 TABULATE DIFFERENCE OF MEDIAN Y1 Y2 X . XTIC OFFSET 0.2 0.2 X1LABEL GROUP ID Y1LABEL DIFFERENCE OF MEDIANS CHAR X LINE BLANK DIFFERENCE OF MEDIAN PLOT Y1 Y2 X CHAR X ALL LINE BLANK ALL BOOTSTRAP DIFFERENCE OF MEDIAN PLOT Y1 Y2 XDataplot generated the following output. ****************************************** ** LET A = DIFFERENCE OF MEDIAN Y1 Y2 ** ****************************************** THE COMPUTED VALUE OF THE CONSTANT A = 0.28000002E+01 ********************************************* ** TABULATE DIFFERENCE OF MEDIAN Y1 Y2 X ** ********************************************* * Y1 AND Y2 X * DIFFERENCE OF MEDIAN ********************************************** 1.00000 * 1.60000 2.00000 * 3.10000 3.00000 * 3.50000 GROUPID AND STATISTIC WRITTEN TO FILE DPST1F.DAT  
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Date created: 03/21/2003 