Description Usage Arguments Value See Also Examples

Plots a scatter plot for the variables of the residuals and fitted values from the linear model, lmfit. A lowess smooth line for the underlying trend, as well as one standard deviation error bounds for the scatter about this trend, are added to this scatter plot. A test for a quadratic relationship between the residuals and the fitted values is also computed.

1 | ```
residPlot(lmfit,f=0.5)
``` |

`lmfit` |
an lm object, i.e. the output from "lm()". |

`f` |
the smoother span. This gives the proportion of points in the plot which influence the smooth at each value. Larger values give more smoothness. |

Returns the plot.

"trendscatter"

1 2 3 4 |

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