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# bar chart of cell population frequencies

Source: `R/data_visualization.R`
`plot_frequency_barplot.Rd`

`plot_frequency_barplot()` plots cell population frequencies for each level in group_var as stacked barplot.

## Usage

    plot_frequency_barplot(
      fcd = condor,
      cluster_slot,
      cluster_var,
      group_var,
      facet_var = NULL,
      color_palette = cluster_palette,
      title = "Frequency"
    )

## Arguments

fcd

  flow cytometry data set, that has been subjected to clustering or cell type label prediction with cyCONDOR

cluster_slot

  string specifying which clustering slot to use to find variable specified in cluster_var.

cluster_var

  string specifying variable name in cluster_slot that identifies cell population labels to be used (e.g. clusters, metaclusters or predicted labels).

group_var

  string indicating variable name in cell_anno that defines grouping variable to be used (x-axis), e.g. group or sample ID.

facet_var

  (optional) string indicating variable name in cell_anno that should be used to group levels in group_var via faceting.

color_palette

  vector of colors to be used to fill bar chart plots

title

  title of the plot, default is "Frequency"

## Value

`plot_frequency_barplot` returns a plot showing cell population frequencies for each level in group_var. The plot is faceted by another variable, when provided a facet_var.

## Details

plot_frequency_barplot