PLEASE SEND THE CODE AS A SCREENSHOT AND EXPLAIN REASONING FOR CHOOSING SPECIFIC CODE!!!!!!!!! We can define a directed graph by ordering its nodes and arcs. First consider a TXT file in which nodes of string type are given, followed by arcs in sequential triples and associated weights. For example: B A D C (C, D, 1) (A, B, 1) (B, D, 3) (B, C, 0) (A, C, 2) The program* can read any (directional) line given in this format and tell whether the (directed) graph contains cycles, order the nodes of an acyclic graph topologically, calculate the shortest distance between any two given nodes of an acyclic graph (if there is a path between these two nodes) under the assumption that arc weights are not negative. (Dijkstra algorithm) For example, the graph given above is acyclic; topological order of nodes as A, B, C, D ; Shortest distance 1 for start node A and end node C. *This program should be R code.
PLEASE SEND THE CODE AS A SCREENSHOT AND EXPLAIN REASONING FOR CHOOSING SPECIFIC CODE!!!!!!!!!
We can define a directed graph by ordering its nodes and arcs. First consider a TXT file in which nodes of string type are given, followed by arcs in sequential triples and associated weights.
For example:
B
A
D
C
(C, D, 1)
(A, B, 1)
(B, D, 3)
(B, C, 0)
(A, C, 2)
The program* can read any (directional) line given in this format and
tell whether the (directed) graph contains cycles,
order the nodes of an acyclic graph topologically,
calculate the shortest distance between any two given nodes of an acyclic graph (if there is a path between these two nodes) under the assumption that arc weights are not negative. (Dijkstra
For example, the graph given above is acyclic; topological order of nodes as A, B, C, D ; Shortest distance 1 for start node A and end node C.
*This program should be R code.
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