info.graph: Plots the standard error of measurement or test information...
In amyarneson/crasch: Construct Mapping with Rasch

Plots the standard error of measurement or test information function.

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info.graph(results, dim = NULL, type = "SEM", completeOnly = TRUE,
  palette = "BASS", thetaGrid = seq(-6, 6, length.out = 100),
  writeout = FALSE, imageType = "pdf", fileSuffix = NULL)

`results`	The output from a run of `craschR`. (link?)
`dim`	Specify which dimension(s) to create graphic/tables for. If `NULL`, output and graphics for each dimension will be produced.
`type`	`c("SEM", "TIC", "IIC")`
`completeOnly`	A logical indicating whether to graph points for respondents who received a score on all items or everyone, no matter what.
`palette`	A character string indicating the color scheme. Can be "BASS", any RColorBrewer palette, or a vector containing 2 colors (the first for the curve and the second for the points).
`thetaGrid`	A vector containing the range of thetas for the function graph.
`writeout`	A logical indicated whether the graph should be written to your working directory as your indicated `imageType`. If `TRUE`, the file name will begin `SEM` or `TIC` and will include an index (if more than one graph is produced) 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.

A plot of the specified test information curve. (Note: if you want category information curves, you can use the TAM function IRT.informationCurves() directly.)

amyarneson/crasch documentation built on May 10, 2019, 10:29 a.m.