listev: returns the ith element of a list supposed to be numeric

In rbsb: set of ancillary functions

Description

Returns the ith element of a list supposed to be numeric. As liste[[ith]] but returns numeric(0) if the length of the list is shorter than ith.

Usage

listev(liste, ith)

Arguments

liste	the list
ith	number of the element to return

Value

The ith element of liste if it exists numeric(0) otherwise.

Examples

 listev(list(A=123, B=234, C=345), 2);

rbsb documentation built on May 2, 2019, 4:41 p.m.