SPSS® 12.0 Command Syntax Reference

Cumulative distribution functions (continuous):
Inverse distribution functions (continuous):
COMPUTE 247
CDF.BETA(q,a,b) Return probability that the beta random variate falls below q (0≤q≤1; a>0; b>0).
CDF.BVNOR(q1,q2,r) Return probability that the standard bivariate normal variates with correlation r
are less than q1 and q2 (-10).
CDF.EXP(q,a) Return probability that the exponential random variate falls below q (q≥0; a>0).
CDF.F(q,a,b) Return probability that the F random variate falls below q (q≥0; a>0; b>0).
CDF.GAMMA(q,a,b) Return probability that the gamma random variate falls below q (q≥0; a>0; b>0).
CDF.HALFNRM(q,a,b) Return probability that the half normal variate falls below q (q≥a; b>0).
CDF.IGAUSS(q,a,b) Return probability that an inverse Gaussian random variate falls below q (a>0;
b>0)
CDF.LAPLACE(q,a,b) Return probability that the Laplace random variate falls below q (b>0).
CDF.LOGISTIC(q,a,b) Return probability that the logistic random variate falls below q (b>0).
CDF.LNORMAL(q,a,b) Return probability that the lognormal random variate falls below q (q≥0; a>0;
b>0).
CDF.NORMAL(q,a,b) Return probability that the normal random variate falls below q (b>0). When a=0,
b=1, alias CDFNORM(q).
CDF.PARETO(q,a,b) Return probability that the Pareto random variate falls below q (q≥a>0; b>0).
CDF.SMOD(q,a,b) Return probability that the studentized maximum modulus falls below q (q>0;
a≥1; b≥1).
CDF.SRANGE(q,a,b) Return probability that the studentized range falls below q (q>0; a≥1; b≥1).
CDF.T(q,a) Return probability that the Student t random variate falls below q (a>0).
CDF.UNIFORM(q,a,b) Return probability that the uniform random variate falls below q (a≤q≤b).
CDF.WEIBULL(q,a,b) Return probability that the Weibull random variate falls below q (q≥0; a>0; b>0).
IDF.BETA(p,a,b) Return value q such that CDF.BETA(q,a,b)=p (0≤p≤1; a>0; b>0).
IDF.CAUCHY(p,a,b) Return value q such that CDF.CAUCHY(q,a,b)=p (00).
IDF.GAMMA(p,a,b) Return value q such that CDF.GAMMA(q,a,b)=p (0≤p0; b>0).
IDF.HALFNRM(p,a,b) Return value q such that CDF.HALFNRM(q,a,b)=p (0≤p0).
IDF.IGAUSS(p,a,b) Return value q such that CDF.IGAUSS(q,a,b)=p (0≤p≤1; a>0; b>0)