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The RELIABILITY Procedure

RELATIONPLOT Statement

The following options are new or can take additional values.

Table 2.5: RELATIONPLOT Statement Options
Option Option Description
CFIT=color | (color list)color for fit lines and confidence curves in a probability plot
CPLOTFIT=color | (color list)colors for percentile lines
FITTYPE=specifies method of estimating distribution parameters
     LSYX-least squares fit to the probability plot. The probability axis is the dependent variable.
     | LSXY-least squares fit to the probability plot. The lifetime axis is the dependent variable.
     | MLE-maximum likelihood (default)
     | MODEL-use the fit from the preceding MODEL statement
     | NONE-no fit is computed
     | REGRESSION-use the fit from the preceding MODEL statement. Non-linear relations and percentiles from models using two independent variables can be plotted.
     | WEIBAYES-Weibayes method
LFIT=linetype | (linetype list))line styles for fit lines and confidence curves in a probability plot. The linetype list is a list of numbers from 1 to 46 representing different linetypes, and can be separated by blanks or commas or can be a list in the form n1 to n2 <by n3>.
LPLOTFIT=linetype | (linetype list))line styles for percentile lines. linetype list is a list of numbers representing different linetypes, and can be separated by blanks or commas or can be a list in the form n1 to n2 <by n3>.
NOPPOSsuppresses plotting of symbols for failures in a probability plot
PINTERVALS=PROBABILITY | PERCENTILES | LIKELIHOODtype of parametric pointwise confidence interval displayed in a probability plot. The default type is PROBABILITY, pointwise confidence intervals on cumulative failure probability.
RCENCOLOR=color | (color list)colors for the symbols representing uncensored, right censored, and left censored observations in a relation plot
RCENSYMBOL=symbol | (symbol list)symbols representing right censored and left censored observations in a relation plot. The symbol is one of the symbol names (plus, star, square, diamond, triangle, hash, paw, point, dot, circle) or a letter (A -Z).
RELATION=ARRHENIUS | ARRHENIUS2 | POWER | LOGISTIC )the logistic function, defined as T(x) = log([x/(1-x)]), has been added as an optional transformation of the stress axis. The logistic transformation is useful when the variable is naturally between 0 and 1. Values of 0, 1, and values outside 0 and 1 are not valid.
SHOWMULTIPLESdisplay the count for multiple overlaying symbols
variable=number listallows plots of percentiles from a regression model when two independent variables are used in a MODEL statement effect list. The FIT=REGRESSION option must be used with this option. Percentile plots are created for each value of the independent variable in the number list. number list is a list of numeric values separated by blanks or commas, or in the form of a list n1 to n2 <by n3>.

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