The Human Life Indicator (HLI)
     
    
    
    Arguments
- age
- Numeric array of age intervals; for full life table = - 0:100; for concise life table =- c(0:1, seq(5,85,5))
 
- mx
- Numeric array with age specific mortality rates. 
- ...
- Optional. Additional arguments for - LT()function.
 
 
    
    
    Details
    It is calculated as
$$HLI = \prod_{x=\alpha}^{\omega}(x + a_x)^{d_x}$$
where \(\alpha, \omega\) are the first and last age groups, \(x\) is age, \(a_x, d_x\) are life table functions (s.t. \(\sum_{x=\alpha}^{\omega} d_x = 1\)).
     
    
    References
    Ghislandi, S., Sanderson, W.C., & Scherbov, S. (2019). A Simple Measure of Human Development: The Human Life Indicator. Population and Development Review, 45, 219–233.