Scripting Guide - SAS

686 JSL Syntax Reference Appendix A
Trigonometric Functions
Log10(n)
Description
Returns the common (base 10) logarithm of n.
Log1P(n)
Description
Same as Log(1 + x), except that it is more accurate when x is very small.
Logit(p)
Description
Returns log(p/(1-p)).
N Choose K(n, k)
Description
This function returns the number of n things taken k at a time (“n choose k”) and is computed in the
standard way using factorials, as n! ⁄ ( k! ( n – k)!
). For example, NChooseK(5,2) evaluates as 10.
Note
This is implemented internally in JMP using lGamma functions. The result is not always an integer.
Root(n, )
Description
Returns the rth root of n, where r defaults to 2 for square root.
Scheffe Cubic(x1, x2)
Description
Returns x1*x2*(x1-x2). This function supports notation for cubic mixture models.
Squish(expr)
Description
–
Equivalent to Squash(-expr), or 1⁄
( 1+
e expr ).
Trigamma()
Description
Returns the trigamma function evaluated at n. The trigamma function is the derivative of the digamma
function.
Trigonometric Functions
JMP’s trigonometric functions expect all angle arguments in radians.