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E08 Show Directed Lineage

E08The extension in your workspace1 step

Use your current course session. Preparation and course runner · R script ↓

E08 Show Directed Lineage

Goal: Read origin as a directed graph.

Prerequisites: E03; H37 for lake lineage.

MANUAL: Select the lake context, select policies.clean and run DataRaft: Show Directed Lineage. Select a source node and follow its relation to the product tree.

training_step(
  "E08",
  {
    if (identical(training_log[["H37"]], "ok")) print(clean_lineage)
  },
  needs = c("E03", "H37"),
  enabled = training_options$gui,
  optional = TRUE
)

Expected result: After H37, a graph with a RAW dependency. Without lake exercises, no lake edges are assumed.

Task: What does the arrow direction represent?

Show solution

Data dependency. Nodes can navigate to the corresponding product view.

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