inOutScatterCharts {ppiStats} | R Documentation

## A function to create scatter plots of the in-degree and out-degree for each vertex of a directed graph

### Description

This function takes a list of directed graph objects and plots the out-degree against the in-degree for each vertex. A binomial test is used to determine if there is a highly disproportionate in-degree or out-degree given a p-value threshold (the binomial test presumes p = 0.5).

### Usage

    inOutScatterCharts(dataGraphs, pThresh=0.01, pLevels=1e-4)

### Arguments

`dataGraphs` | A named list of directed graphNELs
`pThresh` | The two-sided p-value threshold for the binomial testing for potentially biased nodes
`pLevels` | Figure out what this does

### Value

For each directed data graph, this function generates 3 pdf scatter-plots and 1 eps scatter plot. The pdf files are: 1. A scatter plot of each nodes out- vs in-degree where points outside the staircase bundaries are those rejected in the binomial test. 2. A scatter plot of each nodes out- vs in-degree scaled by sqrt where points outside the conic region are those rejected in the binomial test. 3. A histogram for the distribution of p-values for each node

The eps file contains the same information as the second pdf file.

### Author(s)

T Chiang

### Examples

    graphs = lapply(bpExperimentNames, function(x) get(x))
    names(graphs) = bpExperimentNames
    #inOutScatterCharts(graphs)

[Package ppiStats version 1.58.0 Index]