MVINSERT - NLEVELS

  • MVINSERT

    MVINSERT(x;y) replaces values in x by missing value wherever the second identifier stores a non-zero value (logical .TRUE.).
  • MVREPLACE

    MVREPLACE(x;y) replaces missing values in x with the values in the corresponding units of y.
  • MZERO

    MZERO(r;c) zero matrix of size r by c. (Synonym of MAT0).
  • NCOLUMNS

    NCOLUMNS(x) gives the number of columns of x.
  • NCOMBINATIONS

    NCOMBINATIONS(n;r) nunber of combinations nCr of r objects taken from a set of size n.