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Dataplot Graphics Gallery - BOX-COX NORMALITY PLOT

Dataplot

Box-Cox Normality Plot Top Prev Next
BOX-COX NORMALITY PLOT Y

Sample Box-Cox normality plot

  • Question:
    What is best transformation to normality?

  • Definition:
    Vertical Axis : Normal probability plot correlation coefficient
    Horizontal Axis: Box-Cox power transformation parameter (lambda)

  • Interpretation/Conclusion:
    Best transformation is lambda = 0 (i.e., logarithmic)

  • NIST/SEMATECH Handbook Chapter:
    1. Process/Product Exploration

  • Reference:
    Filliben

Dataplot Command: BOX-COX NORMALITY PLOT Y
Dataplot Code:
SKIP 25
READ FULLER2.DAT Y
TITLE CASE ASIS
LABEL CASE ASIS
TITLE Box-Cox Normality Plot
X1LABEL Alpha
Y1LABEL Correlation Coefficient
BOX-COX NORMALITY PLOT Y

Dataplot Reference Manual Documentation
for BOX-COX NORMALITY PLOT (requires Adobe Acrobat Reader)

Date created: 6/5/2001
Last updated: 7/6/2001
Please email comments on this WWW page to alan.heckert@nist.gov.