Resources

Probability Plot for Part Cracking Data

 /****************************************************************/
 /*          S A S   S A M P L E   L I B R A R Y                 */
 /*                                                              */
 /*    NAME: RELPPLT3                                            */
 /*   TITLE: Probability Plot for Part Cracking Data             */
 /* PRODUCT: QC                                                  */
 /*  SYSTEM: ALL                                                 */
 /*    KEYS:                                                     */
 /*   PROCS: RELIABILITY                                         */
 /*    DATA: Nelson, W.  Applied Life Data Analysis, p. 415      */
 /*     REF: SAS/QC Software: The RELIABILITY Procedure          */
 /*                                                              */
 /*                                                              */
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 options nodate nostimer nonumber source2 ls=76 ps=80;

 data cracks;
    input time units fail;
    cards;
    6.12  167  5
    19.92 162 16
    29.64 146 12
    35.4  134 18
    39.72 116 18
    45.24  98  2
    52.32  96  6
    63.48  90 17
    ;

 title 'Probability Plot for Part Cracking Data';
 symbol v=dot c=pink h=.7;
 proc reliability;
    freq fail;
    nenter units;
    distribution weibull;
    probplot time / readout
                    pconfplt
                    cframe = dagr
                    nogrid ;
    inset / ctext  = yellow
            cframe = yellow ;
 run;