z2cent {sitar} | R Documentation |
Express z-scores as centile character strings for plotting
Description
Converts z-scores, typically defining centiles in a growth chart, to character strings that can be used to label the centile curves.
Usage
z2cent(z)
Arguments
z |
a scalar or vector of z-scores. |
Value
A character string is returned, the same length as z. Z-scores between the 1st and 99th centile are converted to centiles with one or two significant figures (lower tail) or to their complement (upper tail). For larger z-scores in absolute value the character consists of "SDS" appended to the z-score rounded to one decimal place.
Author(s)
Tim Cole tim.cole@ucl.ac.uk
See Also
Examples
z2cent(-4:4)
z2cent(qnorm(0:100/100))
[Package sitar version 1.4.0 Index]