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Pattern hunter, plot correlation heatmap

Source: R/metabolomics_plots.R
met.plot_CorrHeatMap_Features.Rd

met.plot_CorrHeatMap_Features visualizes the correlations between features.

Usage

met.plot_CorrHeatMap_Features(
  mSetObj = NA,
  imgName = "correlation_features",
  format = "pdf",
  dpi = NULL,
  width = NA,
  cor.method = "pearson",
  colors = "bwm",
  viewOpt = "overview",
  fix.col = TRUE,
  no.clst = FALSE,
  corrCutoff = 0,
  plot = TRUE,
  export = TRUE
)

Arguments

mSetObj

Input name of the created mSet object.

imgName

(Character) Enter a name for the image file (if export = TRUE).

format

(Character, "png" or "pdf") image file format (if export = TRUE).

dpi

(Numeric) resolution of the image file (if export = TRUE). If NULL, the resolution will be chosen automatically based on the chosen file format (300 dpi for PNG, 72 dpi for PDF)

width

(Numeric) width of the the image file in inches (if export = TRUE).

cor.method

Indicate the correlation method, 'pearson', 'spearman', or 'kendall'.

colors

Indicate the colors for the heatmap, "bwm" for default, "gbr" for red/green, "heat" for heat colors, "topo" for topo colors, and "gray" for gray scale.

viewOpt

Indicate "overview" to get an overview of the heatmap, and "detail" to get a detailed view of the heatmap.

fix.col

(Logical) Fix colors (TRUE) or not (FALSE).

no.clst

(Logical) Indicate if the correlations should be clustered (TRUE) or not (FALSE).

corrCutoff

set correlation cut off

plot

(Logical, TRUE or FALSE) Shall the plot be returned in the RStudio 'Plots' pane?

export

(Logical, TRUE or FALSE) Shall the plot be exported as PDF or PNG file?

Value

The input mSet object with added heat map showing the correlations between features. The plot can be retrieved from within R via print(mSetObj$imgSet$corr.heatmap_features.plot).

References

adapted from PlotCorrHeatMap (https://github.com/xia-lab/MetaboAnalystR).

Author

Nicolas T. Wirth mail.nicowirth@gmail.com Technical University of Denmark License: GNU GPL (>= 2)