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SPSS® 12.0 Command Syntax Reference

SPSS® 12.0 Command Syntax Reference

SPSS® 12.0 Command Syntax Reference

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The following are suffixes for continuous distributions:<br />

Transformation Expressions 41<br />

BETA Beta distribution. The beta distribution takes two shape parameters, a and b;<br />

both must be positive. The noncentral beta distribution takes an extra noncentrality<br />

parameter, c, which must be greater than or equal to 0. The CDF, IDF,<br />

PDF, RV, NCDF, and NPDF functions are available for this distribution, where<br />

both q and p must be between 0 and 1, inclusive. The beta distribution is used<br />

in Bayesian analyses as a conjugate to the binomial distribution.<br />

BVNOR Bivariate normal distribution. The bivariate normal distribution takes one<br />

correlation parameter, r, which must be between –1 and 1, inclusive. The<br />

CDF and PDF functions are available for this distribution and require two<br />

quantiles, q1 and q2. Two variables with correlation r and marginal normal<br />

distributions with a mean of 0 and a standard deviation of 1 have a bivariate<br />

normal distribution.<br />

CAUCHY Cauchy distribution. The Cauchy distribution takes one location parameter,<br />

a, and one scale parameter, b; b must be positive. The CDF, IDF, PDF, and RV<br />

functions are available for this distribution, where 0

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