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Heatmap visualization of the combined fmri_model design matrix

Source: R/fmri_model.R
design_map.fmri_model.Rd

Produces a single heatmap of all columns in the design matrix from an fmri_model object, which merges both the event_model and baseline_model regressors. Rows are scans; columns are regressors. Optionally draws horizontal lines between blocks (runs), and rotates x-axis labels diagonally for readability.

Usage

# S3 method for class 'fmri_model'
design_map(
  x,
  block_separators = TRUE,
  rotate_x_text = TRUE,
  fill_midpoint = NULL,
  fill_limits = NULL,
  ...
)

Arguments

x

An fmri_model object.

block_separators

Logical; if TRUE, draw white horizontal lines between blocks.

rotate_x_text

Logical; if TRUE, rotate x-axis labels by 45 degrees.

fill_midpoint

Numeric or NULL; if not NULL, passed to scale_fill_gradient2 to center the color scale (e.g. fill_midpoint=0).

fill_limits

Numeric vector of length 2 or NULL; passed to the fill scale limits= argument. This can clip or expand the color range.

...

Additional arguments passed to geom_tile.

Value

A ggplot2 plot object.