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Launch the PRA Risk Analysis Agent App

Source: R/app.R
pra_app.Rd

Starts a Shiny app that provides an interactive chat interface to the PRA risk analysis agent. The agent can select and execute PRA tools (Monte Carlo simulation, EVM, Bayesian inference, etc.) in response to natural language questions. Uses shinychat for a polished streaming chat experience with inline tool result display.

Usage

pra_app(
  model = "llama3.2",
  rag = TRUE,
  embed_model = "nomic-embed-text",
  port = NULL,
  launch.browser = TRUE
)

Arguments

model

Character. Ollama model name (default "llama3.2").

rag

Logical. Whether to enable RAG context retrieval (default TRUE).

embed_model

Character. Ollama embedding model for RAG (default "nomic-embed-text").

port

Integer. Port for the Shiny app (default NULL lets Shiny choose).

launch.browser

Logical. Whether to open a browser (default TRUE).

Details

Requires Ollama to be running locally with the specified model downloaded.

Examples

if (FALSE) { # \dontrun{
# Ensure Ollama is running, then:
pra_app()

# With a specific model:
pra_app(model = "qwen2.5")
} # }