single_gene_plot: Single Gene Plot
In mworkentine/mattsUtils: Personal Utility Functions For Various Analysis

Make a plot of a single gene. If more genes are provided will facet by gene. Generally useful for less than about 30 genes

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single_gene_plot(genes, dds, xaxis, fill, normalized = TRUE,
  transform = FALSE, gene_key = NULL, palette = "Set1",
  type = c("box", "dot"), facet_scale = "free_y")

`genes`	character vector of gene identifers that you wish to plot. ID type must match gene ids in the dds object.
`dds`	valid DESeq2 object used to extract the gene expression values. Uses the `plotCounts` function from DESeq2 to extract the expression values.
`xaxis`	character, name of the sample column to put on the x-axis, must be a column in `colData(dds)`.
`fill`	character, name of the sample column to use for colouring the plot, must be a column in `colData(dds)`.
`normalized`	whether the counts should be normalized by size factor (default is TRUE). Passed to `plotCounts`
`transform`	whether to present log2 counts (TRUE) or to present the counts on the log scale (FALSE, default). Passed to `plotCounts`.
`gene_key`	an optional named list of gene symbols with the gene ids as names. Used as a lookup key to replace gene ids with symbols in the plot
`palette`	character, name of RColorBrewer palette to use. Default is "Set1"
`type`	character, type of plot to make. Defaults to boxplot.
`facet_scale`	character, passed to `facet_wrap`.