line {stats} | R Documentation

## Robust Line Fitting

### Description

Fit a line robustly as recommended in Exploratory Data Analysis.

### Usage

    line(x, y)

### Arguments

`x, y` | the arguments can be any way of specifying x-y pairs. See `xy.coords`.

### Details

Cases with missing values are omitted.

Long vectors are not supported.

### Value

An object of class `"tukeyline"`.

Methods are available for the generic functions `coef`, `residuals`, `fitted`, and `print`.

### References

Tukey, J. W. (1977). Exploratory Data Analysis, Reading Massachusetts: Addison-Wesley.

### See Also

`lm`.

### Examples

    require(graphics)

    plot(cars)
    (z <- line(cars))
    abline(coef(z))
    ## Tukey-Anscombe Plot :
    plot(residuals(z) ~ fitted(z), main = deparse(z$call))

[Package stats version 3.4.2 Index]