Last data update: 2014.03.03
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R: Print Method for polycor Objects
print.polycor | R Documentation |
Print Method for polycor Objects
Description
print method for objects of class polycor , produced by
polychor and polyserial .
Usage
## S3 method for class 'polycor'
print(x, digits = max(3, getOption("digits") - 3), ...)
Arguments
x |
an object of class polycor , as returned by polychor
or polyserial .
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digits |
number of significant digits to be printed.
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... |
not used.
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Value
Invisibly returns x ; used for its side effect — i.e., printing.
Author(s)
John Fox jfox@mcmaster.ca
See Also
polychor , polyserial
Examples
set.seed(12345)
data <- rmvnorm(1000, c(0, 0), matrix(c(1, .5, .5, 1), 2, 2))
x <- data[,1]
y <- data[,2]
cor(x, y) # sample correlation
x <- cut(x, c(-Inf, .75, Inf))
y <- cut(y, c(-Inf, -1, .5, 1.5, Inf))
polychor(x, y, ML=TRUE, std.err=TRUE) # polychoric correlation, ML estimate
Results
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