anyone want to implement these transformation functions?

[Ben Pfaff]

We don't have implementations of the following functions for use
in PSPP expressions:

    function NCDF.CHISQ (x >= 0, df > 0, c) = unimplemented;
    function NPDF.CHISQ (x >= 0, df > 0, c) = unimplemented;
    function NCDF.F (x >= 0, df1 > 0, df2 > 0, lambda >= 0) = unimplemented;
    function NPDF.F (x >= 0, df1 > 0, df2 > 0, lmabda >= 0) = unimplemented;
    function SIG.F (x >= 0, df1 > 0, df2 > 0) = unimplemented;
    function CDF.HALFNRM (x, a, b > 0) = unimplemented;
    function IDF.HALFNRM (P > 0 && P < 1, a, b > 0) = unimplemented;
    function PDF.HALFNRM (x, a, b > 0) = unimplemented;
    no_opt function RV.HALFNRM (a, b > 0) = unimplemented;
    function CDF.IGAUSS (x > 0, a > 0, b > 0) = unimplemented;
    function IDF.IGAUSS (P >= 0 && P < 1, a > 0, b > 0) = unimplemented;
    function PDF.IGAUSS (x > 0, a > 0, b > 0) = unimplemented;
    no_opt function RV.IGAUSS (a > 0, b > 0) = unimplemented;
    function CDF.SMOD (x > 0, a >= 1, b >= 1) = unimplemented;
    function IDF.SMOD (P >= 0 && P < 1, a >= 1, b >= 1) = unimplemented;
    function CDF.SRANGE (x > 0, a >= 1, b >= 1) = unimplemented;
    function IDF.SRANGE (P >= 0 && P < 1, a >= 1, b >= 1) = unimplemented;
    function NCDF.T (x, df > 0, nc) = unimplemented;
    function NPDF.T (x, df > 0, nc) = unimplemented;
    function CDF.BINOM (k, n > 0 && n == floor (n), p >= 0 && p <= 1)
         = unimplemented;
    function CDF.GEOM (k >= 1 && k == floor (k), p >= 0 && p <= 1) = 
unimplemented;
    function CDF.HYPER (k >= 0 && k == floor (k) && k <= c,
                        a > 0 && a == floor (a),
                        b > 0 && b == floor (b) && b <= a,
                        c > 0 && c == floor (c) && c <= a)
         = unimplemented;
    function CDF.NEGBIN (k >= 1, n == floor (n), p > 0 && p <= 1) = 
unimplemented;
    function CDF.POISSON (k >= 0 && k == floor (k), mu > 0) = unimplemented;

(The above is in the syntax used for operations.def, which is
terse but expressive.)

Anyone want to implement any of them?  As far as I can tell,
these functions are not part of GSL.
-- 
"Platonically Evil Monkey has been symbolically representing the darkest 
 fears of humanity since the dawn of literature and religion, and I think
 I speak for everyone when I give it a sidelong glance of uneasy recognition 
 this evening." --Scrymarch