The following functions and CALL subroutines compute a variety of statistics or perform mathematical operations that are useful for computing statistics:

Function | Purpose |
---|---|

BRANKS | computes bivariate ranks |

CORR | computes correlation statistics |

COUNTMISS | counts the number of missing values |

COUNTN | counts the number of nonmissing values |

COUNTUNIQUE | returns the number of unique values |

COV | computes a sample variance-covariance matrix |

CUSUM | computes cumulative sums |

CUPROD | computes cumulative products |

DESIGN | creates a design matrix |

DESIGNF | creates a full-rank design matrix |

GEOMEAN | computes geometric means |

HADAMARD | creates a Hadamard matrix |

HARMEAN | computes harmonic means |

MAD | finds the univariate (scaled) median absolute deviation |

MEAN | computes sample means |

OPSCAL | rescales qualitative data to be a least squares fit to qualitative data |

RANK | ranks elements of a matrix |

RANKTIE | ranks matrix elements by using tie-averaging |

SWEEP | sweeps a matrix |

VAR | computes a sample variance |

CALL Subroutine | Purpose |
---|---|

IPF | performs an iterative proportional fit of a contingency table |

LAV | performs linear least absolute value regression by solving the norm minimization problem |

LMS | performs robust least median of squares (LMS) regression |

LTS | performs robust least trimmed squares (LTS) regression |

MARG | evaluates marginal totals in a multiway contingency table |

MAXQFORM | computes the subsets of a matrix system that maximize the quadratic form |

MCD | finds the minimum covariance determinant estimator |

MVE | finds the minimum volume ellipsoid estimator |

QNTL | computes sample quantiles (percentiles) |

SEQ, SEQSCALE, and EQSHIFT | performs discrete sequential tests |

Function | Purpose |
---|---|

MAX | finds the maximum value of a matrix |

MIN | finds the smallest element of a matrix |

PROD | multiplies all elements |

SSQ | computes the sum of squares of all elements |

SUM | sums all elements |

Function | Purpose |
---|---|

NORMAL | generates a pseudorandom normal deviate |

UNIFORM | generates pseudorandom uniform deviates |

CALL Subroutine | Purpose |
---|---|

RANDGEN | generates random numbers from specified distributions |

RANDSEED | initializes seed for subsequent RANDGEN calls |

You can also call functions in Base SAS software such as those documented in the following sections: