Strehler-Mildvan Model - 1960

The Strehler-Mildvan form, from a model of declining vitality with age; it predicts a negative intercept-slope correlation across populations.

Usage

strehler_mildvan(x, par = NULL)

Arguments

x

vector of age at the beginning of the age classes.

par

parameters of the selected model. If NULL the default values are assigned automatically.

Value

A list of rates and model parameters.

Examples

strehler_mildvan(x = 30:85)
#> $hx
#>  [1] 1.500241e-07 1.581300e-07 1.674270e-07 1.779953e-07 1.899305e-07
#>  [6] 2.033440e-07 2.183638e-07 2.351352e-07 2.538220e-07 2.746080e-07
#> [11] 2.976987e-07 3.233231e-07 3.517361e-07 3.832207e-07 4.180909e-07
#> [16] 4.566948e-07 4.994182e-07 5.466880e-07 5.989768e-07 6.568077e-07
#> [21] 7.207591e-07 7.914708e-07 8.696502e-07 9.560798e-07 1.051624e-06
#> [26] 1.157240e-06 1.273984e-06 1.403024e-06 1.545652e-06 1.703295e-06
#> [31] 1.877531e-06 2.070104e-06 2.282941e-06 2.518172e-06 2.778151e-06
#> [36] 3.065481e-06 3.383037e-06 3.733997e-06 4.121874e-06 4.550550e-06
#> [41] 5.024314e-06 5.547910e-06 6.126576e-06 6.766105e-06 7.472897e-06
#> [46] 8.254026e-06 9.117309e-06 1.007139e-05 1.112581e-05 1.229113e-05
#> [51] 1.357900e-05 1.500233e-05 1.657535e-05 1.831381e-05 2.023510e-05
#> [56] 2.235846e-05
#> 
#> $par
#>     A     B     V 
#> 1e-04 1e-01 1e+00 
#>