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Correlation matrix heatmap

Source: R/plots.R
sframe_plot_correlation_matrix.Rd

Computes and plots a full pairwise correlation matrix, independent of run_analysis_plan()'s pairwise correlation_pearson/_spearman/ _kendall runners (which plot one variable pair at a time via sframe_plot_correlation()). Useful directly, and as the visual companion to validity_report()'s discriminant-validity checks.

Usage

sframe_plot_correlation_matrix(
  data,
  vars,
  method = "pearson",
  palette = c("web", "print")
)

Arguments

data

A data frame of survey responses.

vars

Character vector of column names to correlate.

method

One of "pearson", "spearman", "kendall".

palette

One of "web" (diverging red/teal gradient) or "print" (white-to-black gradient by magnitude, signed label). See sframe_brand().

Value

A ggplot2 object.

See also

validity_report()

Examples

# \donttest{
if (requireNamespace("ggplot2", quietly = TRUE)) {
  demo <- sframe_demo_data()
  sframe_plot_correlation_matrix(demo$responses,
                                 c("sq_1", "sq_2", "sq_3", "sat_1", "sat_2"))
}

# }