Screeplot method for CCTpack data, or a cctfit object of class 'cct'; equivalent to function cctscree().
Usage
screeplot(x, ...)
Arguments
x
a 2-dimensional matrix or dataframe, missing values should be input as NA, or a cctfit object of class 'cct'.
...
Additional arguments: polych=T (for ordinal data only), to use the polychoric correlations rather than Pearson correlations.
Details
The scree plot is generated from the respondent by respondent correlation (Pearson) matrix.
Examples
data(hotcold)
screeplot(hotcold)
## With this example data, a scree plot with 2 substantial factors
## (suggesting two cultures) is produced.
Results
R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)
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Type 'demo()' for some demos, 'help()' for on-line help, or
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> library(CCTpack)
Error in library(CCTpack) : there is no package called 'CCTpack'
Execution halted