CodeDepends (version 0.6.0)

makeCallGraph: Create a graph representing which functions call other functions

Description

This function and its methods provide facilities for constructing a graph representing which functions call which other functions.

Usage

makeCallGraph(obj, all = FALSE, ...)

Arguments

obj

The name of one or more packages as a string, optionally prefixed with "package:". This can be a vector of package names. Currently the packages should already be on the search path. Other inputs may be supported in the future

all

a logical value that controls whether the graph includes all the functions called by any of the target functions. This will greatly expand the graph.

…

additional parameters for the methods

Value

An object of class graphNEL-class

See Also

The graph and Rgraphviz packages.

The SVGAnnotation package can be used to mae thee graphs interactive.

Examples

# NOT RUN {
  gg = makeCallGraph("package:CodeDepends")
  if(require(Rgraphviz)) {
     plot(gg, "twopi")

     ag = agopen(gg, layoutType = "circo", name = "bob")
     plot(ag)
  }

  if(require(Rgraphviz)) {
      # Bigger fonts.
    zz = layoutGraph(gg)
    graph.par(list(nodes = list(fontsize = 48)))
    renderGraph(zz)
  }

    # Two packages
    library(codetools)
    gg = makeCallGraph(c("package:CodeDepends", "package:codetools"))
# }

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