CPC.graph: Plots the cumulative probability curves from 'craschR'...
In amyarneson/crasch: Construct Mapping with Rasch

Plots the cumulative probability curves from craschR output.

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CPC.graph(results, itemOrder = NULL, palette = "BASS", observed = FALSE,
  minCell = 8, focusTheta = NULL, logitAxis = "x", writeout = FALSE,
  imageType = "pdf", fileSuffix = NULL)

`results`	The output from a run of `craschR`. (link?)
`itemOrder`	A numeric vector that specifies which items from the output should be graphed. If `NULL`, all items will be graphed.
`palette`	A character string indicating the color scheme. Can be "BASS", "grey", or any RColorBrewer palette.
`observed`	A logical indicating whether or not the observed proportions should be graphed as points along with the curve.
`minCell`	A positive integer indicating the smallest cell value to plot an observed proportion. Only applies if `observed=TRUE`.
`focusTheta`	A numeric vector indicating at which logit values to plot a vertical line and print the probabilities for each category. Only applies if `observed=FALSE`.
`logitAxis`	A character indicating if the logits should be graphed on the x-axis (traditional) or y-axis (as in Wilson, 2005). Choose from c("x", "y").
`writeout`	A logical indicating whether the graphic should be written to to your working directory as your specified `imageType`. If `TRUE`, the file name will begin `CPC`, an index, and the `fileSuffix` if provided.
`imageType`	A character string indicating the format for graphics (if `writeout = TRUE`). Supported types: `c("pdf","svg","jpeg","bmp","tiff","png")`.
`fileSuffix`	A character string that will be affixed to the end of each file name (if `writeout = TRUE`). Use this if you are conducting multiple analyses in the same working directory and do not wish for your existing files to be overwritten.