New Functions in Week 7

rbind

{base}

Combine R objects by rows

xlim

{ggplot2}

A shortcut to set the limits of the x-axis in a ggplot

lag

{dplyr}

Shift values in a vector or time series

regTermTest

{regress}

Perform statistical tests for individual regression coefficients

auc

{pRoc}

Returns the area under the curve

unlist

{base}

Flattens a list into a vector by extracting all its elements

attr

{base}

Access or modify the attributes of an object

grid.arrange

{gridExtra}

Places graphical objects into a rectangular grid

roc

{pRoc}

Create a Receiver Operating Characteristic (ROC) curve

as.numeric

{base}

Coerce a vector to numeric

The end!