shift

a vector you would like to shift (create lag or lead).

VarVect

numeric value specifying how many rows (time units) to shift
the data by. Negative values shift the data down--lag the data. Positive
values shift the data up--lead the data.

shiftBy

logical. Whether or not to remind you to order your data by
the <code>GroupVar</code> and time variable before running <code>shift</code>.

reminder


The function shifts a vector up or down to create lag or lead
variables.
Note: your data needs to be sorted by date. The date should be ascending
(i.e. increasing as it moves down the rows).


Tools for combining and cleaning data sets, particularly
with grouped and time series data.

Christopher Gandrud

DataCombine

Tools for Easily Combining and Cleaning Data Sets

shift function

Largely based on TszKin Julian's <code>shift</code> function:
<a href="http://ctszkin.com/2012/03/11/generating-a-laglead-variables/">http://ctszkin.com/2012/03/11/generating-a-laglead-variables/</a>.

shift: A function for creating lag and lead variables.

Description

Usage

Arguments

Value

Source

Details

See Also