fig_LID {whomds}

Print a graph showing significant correlations between survey items

Description

Print a graph showing significant correlations between survey items

Usage

fig_LID(
  LIDforgraph,
  LIDcutoff = 0.2,
  path_output,
  extra_file_label = NULL,
  vertex_print_grey = NULL
)

Arguments

LIDforgraph

a square matrix of item correlations

LIDcutoff

a numeric value between 0 and 1 for the cut-off for significant correlation

path_output

a string with the path to the output folder

extra_file_label

a string to tack on to the end of names of files outputted and the title of the plot. Default is NULL.

vertex_print_grey

a character vector with the names of vertices to print in "lightgrey", with all others printed in "skyblue". If left as default NULL, all vertices will be printed in "lightgrey".

Details

This function could be applied to visualize any kind of correlations. But within the context of the Rasch Analysis used for the WHO Model Disability Survey, the residual correlations are used when analyzing item dependence.

Value

Returns a ggplot graph showing the items with correlation >= LIDcutoff and prints a csv of the corresponding correlations

See Also

Other figure functions: fig_density(), fig_dist(), fig_poppyramid()