1. Date of download: 10/18/2017
Copyright © ASME. All rights reserved.
From: Equilibrium Based Curve Fitting Method for Test Data With Nonuniform Variance
J. Pressure Vessel Technol. 2014;136(2): doi: /
Figure Legend:
360 deg closed welds data and the fit curves with standard horizontal offsets method (dashed–dotted line) and vertical method (solid line)

2. Date of download: 10/18/2017
Copyright © ASME. All rights reserved.
From: Equilibrium Based Curve Fitting Method for Test Data With Nonuniform Variance
J. Pressure Vessel Technol. 2014;136(2): doi: /
Figure Legend:
Equilibrium re-establishment of (a) horizontal patterned data with two added data blocks and (b) horizontal patterned data with added antisymmetrical data blocks

3. Date of download: 10/18/2017
Copyright © ASME. All rights reserved.
From: Equilibrium Based Curve Fitting Method for Test Data With Nonuniform Variance
J. Pressure Vessel Technol. 2014;136(2): doi: /
Figure Legend:
Ideal curve fitting methods for given data patterns: (a) vertical offsets method and (b) horizontal offsets method

4. Date of download: 10/18/2017
Copyright © ASME. All rights reserved.
From: Equilibrium Based Curve Fitting Method for Test Data With Nonuniform Variance
J. Pressure Vessel Technol. 2014;136(2): doi: /
Figure Legend:
The schematic of the equilibrium establishment of (a) the original data with heteroscedasticity and (b) transformed data with a weight function

5. Date of download: 10/18/2017
Copyright © ASME. All rights reserved.
From: Equilibrium Based Curve Fitting Method for Test Data With Nonuniform Variance
J. Pressure Vessel Technol. 2014;136(2): doi: /
Figure Legend:
(a) a data set with heteroscedastic characteristics [1], and plots of residuals against x with (b) w(xi) = 1; (c) w(xi) = 1/xi; (d) w(xi) = 1/xi2; and (e) w(xi) = 1/xi1/2

6. Date of download: 10/18/2017
Copyright © ASME. All rights reserved.
From: Equilibrium Based Curve Fitting Method for Test Data With Nonuniform Variance
J. Pressure Vessel Technol. 2014;136(2): doi: /
Figure Legend:
The equilibrium mechanism of the two-stress level heteroscedastic data

7. Date of download: 10/18/2017
Copyright © ASME. All rights reserved.
From: Equilibrium Based Curve Fitting Method for Test Data With Nonuniform Variance
J. Pressure Vessel Technol. 2014;136(2): doi: /
Figure Legend:
The mean and the design curves obtained with the equilibrium mechanism for multiple-stress level heteroscedastic creep growth rate data

8. Date of download: 10/18/2017
Copyright © ASME. All rights reserved.
From: Equilibrium Based Curve Fitting Method for Test Data With Nonuniform Variance
J. Pressure Vessel Technol. 2014;136(2): doi: /
Figure Legend:
The mean and the design curves obtained with the equilibrium mechanism for two-stress level heteroscedastic fatigue data.

9. Date of download: 10/18/2017
Copyright © ASME. All rights reserved.
From: Equilibrium Based Curve Fitting Method for Test Data With Nonuniform Variance
J. Pressure Vessel Technol. 2014;136(2): doi: /
Figure Legend:
The mean curves obtained for the heteroscedastic creep data (a) without trimming operation and (b) with trimming operation

10. Date of download: 10/18/2017
Copyright © ASME. All rights reserved.
From: Equilibrium Based Curve Fitting Method for Test Data With Nonuniform Variance
J. Pressure Vessel Technol. 2014;136(2): doi: /
Figure Legend:
Plots of residuals against x for (a) without weight and (b) with the introduction of weight