A PSUT energy conversion chain edge can be simplified if a product has only one supplier (i.e., one "from"). Then, every "to" node for that product can have the product's "from" be its "from". See examples.
Usage
simplify_edge_list(
edge_list,
from = "From",
to = "To",
value = "Value",
product = "Product"
)Arguments
- edge_list
the edge list to be simplified
- from
the name of the from column in the edge list. (Default is "
From".)- to
the name of the to column in the edge list. (Default is "
To".)- value
the name of the value column in the edge list. (Default is "
Value".)- product
the name of the product column in the edge list. (Default is "
Product".)
Examples
el <- data.frame(From = c("A", "Oil"), To = c("Oil", "C"),
Value = c(42, 42), Product = c("Oil", "Oil"),
stringsAsFactors = FALSE)
# Oil flows from A to C through its product node (Oil)
el
#> From To Value Product
#> 1 A Oil 42 Oil
#> 2 Oil C 42 Oil
# Simplify to have Oil flow from A to C without the product node
simplify_edge_list(el)
#> From To Value Product
#> 1 A C 42 Oil