plotValuesImageG: plotValuesImageG.
In prafols/rMSIproc: MSI Processing in C++

Description Usage Arguments Value

Plot a raster image of arbitrary pixel values. This cna be use to plot PCA results for example. This function is equivalent to the rMSIproc::plotValuesImage() but using ggplot2. If the pixel_values is a "factor" object then discrete colors are used. This is useful to plot clustering results.

plotValuesImageG(
  peakMatrix,
  pixel_values,
  scale_label = "",
  title_label = "",
  plot_rows = 2,
  plot_cols = 2,
  plot_byrow = T,
  plot_rotations = rep(0, length(peakMatrix$names)),
  plot_mirror_X = rep(F, length(peakMatrix$names)),
  plot_mirror_Y = rep(F, length(peakMatrix$names)),
  plot_margin = 40,
  plot_labels = peakMatrix$names,
  gradient_scale_colours = rev(rainbow(n = 100, start = 0, end = 0.6)),
  gradient_scale_limits = c(min(pixel_values), max(pixel_values)),
  fixed_aspect_ratio = F,
  display_colorbar = T
)

`peakMatrix`	an rMSIproc peak matrix.
`pixel_values`	a vector with the pixel values, factor object can be used for a discrete image.
`scale_label`	Text label for the plot scale bar.
`title_label`	Text label for the plot main title.
`plot_rows`	number of rows to arrange multiple images in the plotting area.
`plot_cols`	number of columns to arrange multiple images in the plotting area.
`plot_byrow`	a boolean idicating if the plotted images must be sorted by rows.
`plot_rotations`	a vector with the rotation in degree to apply to each image.
`plot_mirror_X`	a vector of booleans idicatinc if each image must be flipped horizontally.
`plot_mirror_Y`	a vector of booleans idicatinc if each image must be flipped vertically.
`plot_margin`	a numeric value that determines the separation between images.
`plot_labels`	text labels to be used for each image.
`gradient_scale_colours`	alternative color scale for the image.
`gradient_scale_limits`	alternative limits for the pixel values.
`fixed_aspect_ratio`	set this flag to true to fix the aspect ratio of the ion images.
`display_colorbar`	set if the colour bar must be displayed.