R: Summary method for Principal Components Analysis

summary.princomp {stats} | R Documentation

## Summary method for Principal Components Analysis

### Description

The `summary` method for class `"princomp"`.

### Usage

    ## S3 method for class 'princomp'
    summary(object, loadings = FALSE, cutoff = 0.1, ...)

    ## S3 method for class 'summary.princomp'
    print(x, digits = 3, loadings = x$print.loadings,
          cutoff = x$cutoff, ...)

### Arguments

`object` | an object of class `"princomp"`, as from `princomp()`.
`loadings` | logical. Should loadings be included?
`cutoff` | numeric. Loadings below this cutoff in absolute value are shown as blank in the output.
`x` | an object of class "summary.princomp".
`digits` | the number of significant digits to be used in listing loadings.
`...` | arguments to be passed to or from other methods.

### Value

`object` with additional components `cutoff` and `print.loadings`.

### See Also

`princomp`

### Examples

    summary(pc.cr <- princomp(USArrests, cor = TRUE))
    ## The signs of the loading columns are arbitrary
    print(summary(princomp(USArrests, cor = TRUE),
                  loadings = TRUE, cutoff = 0.2), digits = 2)

[Package stats version 4.0.5 Index]