tryNULL

try_default

expr

default

should errors be printed (TRUE) or ignored (FALSE, default)

quiet

<code>try_default</code> wraps try so that it returns a default value in the case of error.
<code>tryNULL</code> provides a useful special case when dealing with lists.

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'.

try_default: Try, with default in case of error.

Description

Usage

Arguments

See Also