Construct Likert (and Likert-like) Pairwise Heatmap

Constructs a ggplot2::ggplot2 heatmap for Likert and Likert-like results with each option for the question of interest (QoI) represented on the row while the columns are the question being compared (Qcompared). Each tile (square) is shaded based on the percent overlap and the percentage of overlapping responses are noted as MSU dark-green text on a white box.

This function is called by likert.plot.matrix() but can be called individually.

Usage

likert.heatmap(data, QoI, Qcompared, value.range)

Arguments

data

tibble (or data.frame) with Likert data converted to integers. Use the convert.fromto() function to convert text responses to integers. Note: Ensure the integers are positive and non-zero.

QoI

string with the Question of Interest (the rows)

Qcompared

string with the Question being Compared to (the columns)

value.range

range of possible Likert values

Value

ggplot2 graphics object

Author

Emilio Xavier Esposito emilio.esposito@gmail.com (https://github.com/emilioxavier)

Examples

if (FALSE) { # \dontrun{
likert.heatmap(data=fs20.likert, QoI="Q1", Qcompared="Q2")
} # }