Tell whether each industry's inputs are unit-homogeneous — inputs_unit

Returns TRUE if each industry's inputs are unit-homogeneous.

Usage

inputs_unit_homogeneous(
  .sutmats = NULL,
  U = "U",
  S_units = "S_units",
  keep_details = FALSE,
  ins_unit_homogeneous = ".inputs_unit_homogeneous"
)

Arguments

.sutmats: a data frame of supply-use table matrices with matrices arranged in columns.
U: a use (U) matrix or name of the column in .sutmats that contains same. Default is "U".
S_units: an S_units matrix or name of a column in .sutmats that contains same. Default is "S_units".
keep_details: if TRUE, per-product results are returned; if FALSE, per-ECC results are returned. Default is FALSE.
ins_unit_homogeneous: name of the output boolean that tells whether each industry's inputs are unit-homogeneous. Default is ".inputs_unit_homogeneous".

Value

a list or data frame containing TRUE if inputs to each energy conversion industry are unit-homogeneous, FALSE otherwise.

Details

The U_bar matrix is queried for the number of non-zero entries in each column. If the number of non-zero entries in each column is exactly 1, industry inputs are unit-homogeneous. Note that U_bar = matrixproduct_byname(transpose_byname(S_units), U).

Examples

library(tidyr)
UKEnergy2000mats %>%
  spread(key = "matrix.name", value = "matrix") %>%
  inputs_unit_homogeneous()
#> # A tibble: 4 × 13
#>   Country  Year Energy.type Last.stage R             S_units  U        U_EIOU  
#>   <chr>   <dbl> <chr>       <chr>      <list>        <list>   <list>   <list>  
#> 1 GBR      2000 E           Final      <dbl [2 × 2]> <dbl[…]> <dbl[…]> <dbl[…]>
#> 2 GBR      2000 E           Services   <dbl [2 × 2]> <dbl[…]> <dbl[…]> <dbl[…]>
#> 3 GBR      2000 E           Useful     <dbl [2 × 2]> <dbl[…]> <dbl[…]> <dbl[…]>
#> 4 GBR      2000 X           Services   <dbl [2 × 2]> <dbl[…]> <dbl[…]> <dbl[…]>
#> # ℹ 5 more variables: U_feed <list>, V <list>, Y <list>, r_EIOU <list>,
#> #   .inputs_unit_homogeneous <lgl>