SED navigation bar go to SED home page go to Dataplot home page go to NIST home page SED Home Page SED Staff SED Projects SED Products and Publications Search SED Pages
Dataplot Vol 2 Vol 1

DIFFERENCE OF MIDRANGE

Name:
    DIFFERENCE OF MIDRANGE (LET)
Type:
    Let Subcommand
Purpose:
    Compute the difference between the midranges for two response variables.
Description:
    The midrange is the mean of the minimum and maximum points (i.e., (min + max)/2) of a response variable.

    For the differeence of midranges, the midrange is computed for each of two samples then their difference is taken.

Syntax:
    LET <par> = DIFFERENCE OF MIDRANGE <y1> <y2>
                            <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 midranges is stored;
    and where the <SUBSET/EXCEPT/FOR qualification> is optional.
Examples:
    LET A = DIFFERENCE OF MIDRANGE Y1 Y2
    LET A = DIFFERENCE OF MIDRANGE Y1 Y2 SUBSET X > 1
Note:
    Dataplot statistics can be used in a number of commands. For details, enter

Default:
    None
Synonyms:
    None
Related Commands: Applications:
    Data Analysis
Implementation Date:
    2003/03
Program:
    SKIP 25 
    READ IRIS.DAT Y1 TO Y4 X 
    . 
    LET A = DIFFERENCE OF MIDRANGE Y1 Y2 
    TABULATE DIFFERENCE OF MIDRANGE Y1 Y2 X 
    . 
    XTIC OFFSET 0.2 0.2 
    X1LABEL GROUP ID 
    Y1LABEL DIFFERENCE OF MIDRANGE 
    CHAR X 
    LINE BLANK 
    DIFFERENCE OF MIDRANGE PLOT Y1 Y2 X 
    CHAR X ALL 
    LINE BLANK ALL 
    BOOTSTRAP DIFFERENCE OF MIDRANGE PLOT Y1 Y2 X  
        
    Dataplot generated the following output.
           ********************************************
           **  LET A = DIFFERENCE OF MIDRANGE Y1 Y2  **
           ********************************************
      
      
     THE COMPUTED VALUE OF THE CONSTANT A             =  0.29000003E+01
      
      
           ***********************************************
           **  TABULATE DIFFERENCE OF MIDRANGE Y1 Y2 X  **
           ***********************************************
      
      
                     *    Y1       AND Y2
         X           *    DIFFERENCE OF MIDRANGES
     **********************************************
         1.00000     *     1.70000
         2.00000     *     3.25000
         3.00000     *     3.40000
      
           GROUP-ID AND STATISTIC WRITTEN TO FILE DPST1F.DAT
        
    plot generated by sample program

    plot generated by sample program

Privacy Policy/Security Notice
Disclaimer | FOIA

NIST is an agency of the U.S. Commerce Department.

Date created: 03/27/2003
Last updated: 11/09/2015

Please email comments on this WWW page to alan.heckert@nist.gov.