¿Cómo puedo obtener el mínimo/máximo posible numérico?

Question

¿Hay una función que devuelva los valores numéricos más altos y más bajos posibles?

Answer 1

help(numeric) le envía a help(double) que tiene

valores de precisión doble:

All R platforms are required to work with values conforming tothe 
IEC 60559 (also known as IEEE 754) standard. This basically works 
with a precision of 53 bits, and represents to that precision a 
range of absolute values from about 2e-308 to 2e+308. It also has 
special values ‘NaN’ (many of them), plus and minus infinity and 
plus and minus zero (although R acts as if these are the same). 
There are also _denormal(ized)_ (or _subnormal_) numbers with 
absolute values above or below the range given above but 
represented to less precision. 

See ‘.Machine’ for precise information on these limits. Note that 
ultimately how double precision numbers are handled is down to the 
CPU/FPU and compiler. 

por lo que desea mirar en .Machine la que en mi caja de 64 bits tiene

$double.xmin 
[1] 2.22507e-308 

$double.xmax 
[1] 1.79769e+308