local_explanation: Get a local explanation for a chosen misclassified instance

In mstaniak/egalitaRian: Compare Validation and Training Datasets and Explore Differences

Description

Get a local explanation for a chosen misclassified instance

Usage

local_explanation(instance, egalitarian, method = "breakDown",
  predict_function = predict, ...)

Arguments

instance	observation to be explained as an index from 'validation_set'
egalitarian	object of class egalitarian
method	character specifying type of local explanation. Available options are "lime" for LIME, "live" for live and "breakDown" for breakDown. For details see documentations of packages lime, live and breakDown
predict_function	predict function for the model that returns classes, defaults to 'predict'
...	Additional parameters that will be passed to 'lime::explain', 'live::sample_locally2' or 'breakDown::broken'. For "live" method, this must include 'size' argument. If "lime" is used, model_type must be set. For details, read documentation for these packages. 'egalitarian' uses wrappers around these packages called 'lime_extractor', 'live_extractor' and 'breakDown'. More information can be found in help for these functions

Value

object of class egalitarian_local_explanation that consists of

data	data from 'egalitarian' object
target_name	name of response variable
model	model object from 'egalitarian' object
instance	index of explained instance in validation set
explanation_type	character name indicating which explainer was used
local_explanation	explanation object created by lime/live/breakDown package
variables	names of variables which influenced the prediction negatively

mstaniak/egalitaRian documentation built on Aug. 26, 2019, 11:11 p.m.