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MCF Difference Plot for Braking Grids Data

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 /*          S A S   S A M P L E   L I B R A R Y                 */
 /*                                                              */
 /*    NAME: RELMCF2                                             */
 /*   TITLE: MCF Difference Plot for Braking Grids Data          */
 /* PRODUCT: QC                                                  */
 /*  SYSTEM: ALL                                                 */
 /*    KEYS:                                                     */
 /*   PROCS: RELIABILITY                                         */
 /*    DATA: Doganaksoy and Nelson (1991),  p. 1                 */
 /*     REF: SAS/QC Software: The RELIABILITY Procedure          */
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 /*                                                              */
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 options nodate nostimer nonumber source2 ls=76 ps=80;

 data grids;
    if _N_ < 40 then sample = 'Sample1';
    else sample = 'Sample2';
    input ID$ days value @@;
    cards;
 S1-01 462  1    S1-01 730 -1    S1-02 364  1    S1-02 391  1
 S1-02 548  1    S1-02 724 -1    S1-03 302  1    S1-03 444  1
 S1-03 500  1    S1-03 730 -1    S1-04 250  1    S1-04 730 -1
 S1-05 500  1    S1-05 724 -1    S1-06  88  1    S1-06 724 -1
 S1-07 272  1    S1-07 421  1    S1-07 552  1    S1-07 625  1
 S1-07 719 -1    S1-08 481  1    S1-08 710 -1    S1-09 431  1
 S1-09 710 -1    S1-10 367  1    S1-10 710 -1    S1-11 635  1
 S1-11 650  1    S1-11 708 -1    S1-12 402  1    S1-12 700 -1
 S1-13  33  1    S1-13 687 -1    S1-14 287  1    S1-14 687 -1
 S1-15 317  1    S1-15 498  1    S1-15 657 -1    S2-01 203  1
 S2-01 211  1    S2-01 277  1    S2-01 373  1    S2-01 511 -1
 S2-02 293  1    S2-02 503 -1    S2-03 173  1    S2-03 470 -1
 S2-04 242  1    S2-04 464 -1    S2-05  39  1    S2-05 464 -1
 S2-06  91  1    S2-06 462 -1    S2-07 119  1    S2-07 148  1
 S2-07 306  1    S2-07 461 -1    S2-08 382  1    S2-08 460 -1
 S2-09 250  1    S2-09 434 -1    S2-10 192  1    S2-10 448 -1
 S2-11 369  1    S2-11 448 -1    S2-12  22  1    S2-12 447 -1
 S2-13  54  1    S2-13 441 -1    S2-14 194  1    S2-14 432 -1
 S2-15  61  1    S2-15 419 -1    S2-16  19  1    S2-16 185  1
 S2-16 419 -1    S2-17 187  1    S2-17 416 -1    S2-18  93  1
 S2-18 205  1    S2-18 264  1    S2-18 415 -1
 ;

 title 'Braking Grids Data';
 symbol v=star c=red;
 proc reliability data=grids;
    unitid ID;
    mcfplot days*value(-1) = sample / mcfdiff
                                      cframe=cyan ;
    inset / cfill  = orange
            cfillh = yellow
            header = 'Statistics'
            height = 3
            pos    = se ;
 run;