1THIS IS DATAPLOT DATA FILE UCC.DAT 2PURPOSE--ILLUSTRATE U CONTROL CHART 3NUMBER OF CRACKS IN PLASTIC WIRE AFTER REFRIDGERATION AND FLEXING 4DATE--JULY 1990 5NUMBER OF OBSERVATIONS = 20 6NUMBER OF VARIABLES = 3 7ORDER OF VARIABLES ON A LINE IMAGE-- 8 1. NUMBER OF DEFECTS (CRACKS) PER SPECIMEN 9 2. SIZE (LENGTH) OF SPECIMEN (IN METERS) 10 3. SUBGROUP ID (1 TO 20) 11STATISTICAL AREAS--U CONTROL CHART 12REFERENCE--ISHIKAWA, GUIDE TO QUALITY CONTROL, PAGES 81-83 13TO READ THIS FILE INTO DATAPLOT-- 14 SKIP 25 15 READ UCC.DAT NUMDEF SIZE X 16 CHARACTERS CONTROL CHART 17 LINES CONTROL CHART 18 U CONTROL CHART NUMDEF SIZE X 19 LET N1 = SUM NUMDEF; LET N2 = SUM SIZE; LET M = 100*(N1/N2) 20 SPIKE ON; SPIKE BASE M; CHARACTER FILL ON 21 U CONTROL CHART NUMDEF SIZE X 22 23NUMBER OF LENGTH OF SUB-GROUP 24 DEFECTS SPECIMEN 25------------------------------------- 26 4 2.0 1 27 3 2.0 2 28 3 2.0 3 29 4 2.0 4 30 5 2.0 5 31 3 2.0 6 32 6 2.5 7 33 7 2.5 8 34 5 2.5 9 35 3 2.5 10 36 5 2.5 11 37 5 2.5 12 38 4 2.5 13 39 6 2.25 14 40 5 2.25 15 41 4 2.25 16 42 4 2.25 17 43 6 2.25 18 44 8 2.75 19 45 8 2.75 20 46