Tham khảo tài liệu 'the microguide to process modeling in bpmn by mr tom debevoise and rick geneva_12', kỹ thuật - công nghệ, điện - điện tử phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | . Quadratic Quadratic Rational Function Model Residual Plot The plot of the residuals versus the predictor variable temperature row 1 column 2 and of the residuals versus the predicted values row 1 column 3 indicate a distinct pattern in the residuals. This suggests that the assumption of random errors is badly violated. We generate a full-sized residual plot in order to show more detail. http div898 handbook pmd section6 4 of 5 5 1 2006 10 22 57 AM . Quadratic Quadratic Rational Function Model Residuals from Q Q Fit Temperature degrees Kelvin The full-sized residual plot clearly shows the distinct pattern in the residuals. When residuals exhibit a clear pattern the corresponding errors are probably not random. sema ech SEARCH leACK next http div898 handbook pmd section6 5 of 5 5 1 2006 10 22 57 AM . Cubic Cubic Rational Function Model ENGINEERING STATISTICS HANDBOOK home TOOLS aids search back NEXfl 4. Process Modeling . Case Studies in Process Modeling . Thermal Expansion of Copper Case Study Cubic Rational Function Model C C Rational Function Model Since the Q Q model did not describe the data well we next fit a cubic cubic C C rational function model. We used Dataplot to fit the C C rational function model with the following 7 subset points to generate the starting values. TEMP THERMEXP 10 0 30 2 40 3 50 5 120 12 200 15 800 20 Exact Dataplot generated the following output from the exact rational fit command. The output has been Rational edited for display. Fit Output EXACT RATIONAL FUNCTION FIT NUMBER OF POINTS IN FIRST SET 7 DEGREE OF NUMERATOR 3 DEGREE OF DENOMINATOR 3 NUMERATOR --A0 A1 A2 A3 01 00 DENOMINATOR--B0 B1 B2 B3 01 APPLICATION OF EXACT-FIT COEFFICIENTS TO SECOND PAIR OF VARIABLES-- NUMBER OF POINTS IN SECOND SET 236 NUMBER OF ESTIMATED .
