Nonnormal Distribution Capability Indices
/****************************************************************/
/* S A S S A M P L E L I B R A R Y */
/* */
/* NAME: CAPIND */
/* TITLE: Nonnormal Distribution Capability Indices */
/* PRODUCT: QC */
/* SYSTEM: ALL */
/* KEYS: Capability Analysis, Capability Indices, */
/* PROCS: CAPABILITY */
/* DATA: */
/* */
/* SUPPORT: saswgr */
/* REF: SAS/QC Software: Usage and Reference, Version 6, */
/* First Edition, Volume 1 and Volume 2 */
/* MISC: */
/* */
/****************************************************************/
data Plates;
label Gap='Plate Gap in cm';
input Gap @@;
datalines;
0.746 0.357 0.376 0.327 0.485 1.741 0.241 0.777 0.768 0.409
0.252 0.512 0.534 1.656 0.742 0.378 0.714 1.121 0.597 0.231
0.541 0.805 0.682 0.418 0.506 0.501 0.247 0.922 0.880 0.344
0.519 1.302 0.275 0.601 0.388 0.450 0.845 0.319 0.486 0.529
1.547 0.690 0.676 0.314 0.736 0.643 0.483 0.352 0.636 1.080
;
proc capability data=Plates checkindices(alpha=0.05);
specs lsl=0.3 usl= 0.8;
histogram Gap / lognormal(indices) noplot;
run;