eval.quoted

<p>if TRUE, return <code>NULL</code> if evaluation unsuccesful</p>

expr

<p>Evaluates quoted variables in specified environment</p>

internal

A set of tools that solves a common set of
problems: you need to break a big problem down into manageable pieces,
operate on each piece and then put all the pieces back together.  For
example, you might want to fit a model to each spatial location or
time point in your study, summarise data by panels or collapse
high-dimensional arrays to simpler summary statistics. The development
of 'plyr' has been generously supported by 'Becton Dickinson'.

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eval.quoted: Evaluate a quoted list of variables.

Description

Usage

Arguments

Value