Sib-pair Command: log|sqrt|exp|sin|cos|tan|asin|acos|atan|abs|int|round

Class	Algebraic operators and function
Name	log | log10 | sqrt | exp | sin | cos | tan | asin | acos | atan | abs | int | round
Arguments	(<variable>|<locus>)

Functions acting on numerical constants and/or trait values. Calculations are double precision in accuracy.

Example:

>> exp (log 10 + log 10)
=>  100.00000000000004
>>  4*asin(1/sqrt(2))
=>  3.1415926535897927
>>round { 2.49999999 2.5 }
=>  2.
=>  3.

Sib-pair Command: pnorm|rnorm

Class	Algebraic operators and function
Name	pnorm | qnorm
Arguments	<stat> (<variable>|<locus>)

Functions for upper tail distribution and quantile of standardized Gaussian distribution.

Example:

>> pnorm 1.96
=>  0.024997895149175307
>> qnorm 0.95
=> -1.6448536279366268 

Sib-pair Command: greg|julian

Class	Algebraic operators and function
Name	greg | julian
Arguments	<date> (<variable>|<locus>)

Functions converting Julian to Gregorian and Gregorian to Julian dates.

Example:

>> julian 19700101
=>  0.
>> int((julian 20070416 - julian 19651204)/365.25)
=>>  41.