mutual.information.condition: Tests how much each element increases the specificity of all...

In NetFACS: Network Applications to Facial Communication Data

Tests how much each element increases the specificity of all combinations it is in

Description

The function takes all elements and dyadic combinations of elements in a netfacs object, goes through all combinations these elements are in, and compares the specificity (strength with which the combination identifies the test condition) of all combinations with the element and the same combinations without the element, to test how much specificity the element adds when added to a signal. Only works for netfacs objects based on comparison between conditions.

Usage

mutual.information.condition(netfacs.data)

Arguments

netfacs.data

object resulting from netfacs() function

Value

Function returns a list with two data frames that include all elements and first-order combinations that occur at all, the number of combinations that each element/combination is part of, and how much adding this element to a combination adds on average to its specificity, and how often it occurs

Examples

### how do angry facial expressions differ from non-angry ones?

data(emotions_set)
angry.face <- netfacs(
 data = emotions_set[[1]],
  condition = emotions_set[[2]]$emotion,
  test.condition = "anger",
  null.condition = NULL,
  ran.trials = 100,
  combination.size = 4
)

head(mutual.information.condition(angry.face), 20)

NetFACS documentation built on Dec. 7, 2022, 1:12 a.m.