Dmisc: Miscellaneous functions provided by Dason

Split a dataset into training and testing sets based on a training/testing percentage

1	trainTest(dat, p.train = 0.7, sort = FALSE)

`dat`	A data.frame or matrix that you want to split into training/testing sets. It is assumed that each row is a separate observation
`p.train`	Numeric. A number between 0 and 1 dictating what percentage of the data will be put in the training set
`sort`	Logical. Whether you want the training/testing sets to be sorted in the same order as the original data.