Tham khảo tài liệu 'engineering statistics handbook episode 4 part 9', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | . Dataplot macros ENGINEERING STATISTICS HANDBOOK home TOOLS Í AIDS EAtOH BACK Nfxf 2. Measurement Process Characterization . Case studies . Evaluation of type A uncertainty . Dataplot macros Reads data and plots the repeatability standard deviations for probe 2362 and pools standard deviations over days wafers -run 1 reset data reset plot control reset i o dimension 500 rows label size 3 set read format 32x read run wafer probe y sr retain run wafer probe y sr subset probe 2362 let df sr - sr 5. y1label characters all lines blank all x2label Repeatability standard deviations for probe 2362 run 1 plot sr subset run 1 let var sr sr let df11 sum df subset run 1 let s11 sum var subset run 1 . repeatability standard deviation for run 1 let s11 5. s11 df11 1 2 print s11 df11 . end of calculations Reads data and plots repeatability standard deviations for probe 2362 and pools standard deviations over days wafers -run 2 reset data reset plot control reset i o dimension 500 30 label size 3 set read format 32x read run wafer probe y sr retain run wafer probe y sr subset probe 2362 let df sr - sr 5. y1label characters all lines blank all x2label Repeatability standard deviations for probe 2362 http div898 handbook mpc section6 1 of 8 5 1 2006 10 13 29 AM . Dataplot macros run 2 plot sr subset run 2 let let var df11 sr sr sum df subset run 1 let df12 sum df subset run 2 let s11 sum var subset run 1 let s12 sum var subset run 2 let s11 5. s11 df11 1 2 let s12 5. s12 df12 1 2 print s11 df11 print s12 df12 let S1 s11 2 s12 2 2. 1 2 let df1 df11 df12 . repeatability standard deviation and df for run 2 print s1 df1 . end of calculations Computes level-2 standard deviations from daily averages and pools over wafers -- run 1 reset data reset plot control reset i o dimension 500 rows label size 3 set read format 32x
