separate_RV: Separate resource ('R') and make ('V') matrices from make...

In MatthewHeun/Recca: R Energy Conversion Chain Analysis

Separate resource (R) and make (V) matrices from make plus resource (R_plus_V) matrices

Description

Resource industries are industries that make a product without using any products. Resource industries are identified by interrogating the use (U) and make (R_plus_V) matrices. Resource industries have all zeroes in their column of the use matrix (U) and at least one non-zero value in their row of the make (R_plus_V) matrix.

Usage

separate_RV(.sutmats = NULL, U = "U", R_plus_V = "R_plus_V", R = "R", V = "V")

Arguments

.sutmats	a list or data frame containing use matrix(ces) and make matrix(ces)
U	a use (U) matrix or name of the column in .sutmats that contains same. Default is "U".
R_plus_V	an R_plus_V matrix or name of the column in .sutmats that contains same. Default is "R_plus_V".
R	name for resource (R) matrix on output. Default is "R".
V	name for make (V) matrix on output. Default is "V".

Details

A resource matrix (R) has industries in rows and products in columns. The elements of of R indicate extraction of resources from the biosphere. The industries of R are the reserves of the extracted products.

This function uses the resource_industries function to identify the resource industries in the R_plus_V matrix. Thereafter, the function extracts the resource industries from the R_plus_V matrix to form the R matrix. Finally, the R matrix is subtracted from the R_plus_V matrix and saved as the V matrix. If there are no resource industries in the R_plus_V matrix, a warning is emitted, no R matrix is created, and no changes are made to the R_plus_V matrix.

separate_RV is the inverse of combine_RV.

Value

a list or data frame containing R and V matrices

Examples

library(dplyr)
library(tidyr)
UKEnergy2000mats %>%
  spread(key = "matrix.name", value = "matrix") %>%
  # Rename the V matrix, because it includes the R matrix.
  rename(
    R_plus_V = V
  ) %>%
  separate_RV()

MatthewHeun/Recca documentation built on Feb. 9, 2024, 6:18 p.m.