has.key

has.key-methods

has.key,ANY,hash-method

<code>has.key</code> returns a logical vector as long as <code>keys</code>, indicating
 which keys are defined on the hash.

 data

 methods 

 manip 

Implements a data structure similar to hashes in Perl and dictionaries in Python but with a purposefully R flavor. For objects of appreciable size, access using hashes outperforms native named lists and vectors.

John Hughes

hash

Full Featured Implementation of Hash Tables/Associative
Arrays/Dictionaries

Christopher Brown

has.key function

<dl> <dt>key</dt>
<dd>A vector whose entries will be coerced to valid keys.</dd> <dt>hash</dt>
<dd>A <code>hash</code> object.</dd> <dt>...</dt>
<dd>arguments passed to further functions</dd></dl>

Arguments

Author

Test for existence of key(s) on a hash — has.key

<dl>

 <dt>key</dt>
<dd>A vector whose entries will be coerced to valid keys.</dd>

 <dt>hash</dt>
<dd>A <code>hash</code> object.</dd>

 <dt>...</dt>
<dd>arguments passed to further functions</dd>

</dl>

has.key: Test for existence of key(s) on a hash

Description

Usage

Value

Arguments

Author

Details

See Also

Examples