Hyperbolic trigonometry functions

[andersen-hecon]

Describe the enhancement requested

In economics and health services research we often use hyperbolic trig functions--particularly the hyperbolic arc sine function--to transform skewed data with 0s. While it is possible (and not too difficult) to code up asinh manually (ln(x+sqrt(x^2+1))), it would be great if it could be added to the library of built-in functions.

Component(s)

R

[thisisnic]

Hi @andersen-hecon - thanks for opening this issue! Would you be interested in submitting a pull request?