Computes the depreciation parameter according to the Ross-Heidecke method

Source: R/ross-heidecke.R

Computes the depreciation parameter according to the Ross-Heidecke method

rossheidecke(
  VU,
  IA,
  Conservacao = c("Novo", "Entre novo e regular", "Regular",
    "Entre regular e reparos simples", "Reparos simples",
    "Entre reparos simples e importantes", "Reparos importantes",
    "Entre reparos importantes e sem valor", "Sem valor")
)

Arguments

VU

lifespan
IA

apparent age
Conservacao

Conservation state

Value

The Ross-Heidecke depreciation parameter

Examples

rossheidecke(30, 0, "Novo")

#> [1] 1
rossheidecke(30, 10, "N")

#> [1] 0.7777778
rossheidecke(30, 20, "N")

#> [1] 0.4444444
rossheidecke(30, 30, "N")

#> [1] 0

rossheidecke(30, 0, "Reparos simples")

#> [1] 0.819
rossheidecke(30, 10, "Reparos simples")

#> [1] 0.637
rossheidecke(30, 20, "Reparos simples")

#> [1] 0.364
rossheidecke(30, 30, "Reparos simples")

#> [1] 0