... EDITORCarol LongPROJECT EDITORVictoria SwiderTECHNICAL EDITORRichard RowePRODUCTION EDITORKathleen WisorCOPY EDITORKim CoferEDITORIAL MANAGERMary Beth WakefieldFREELANCER EDITORIAL ... For more information about Wiley products, visit www.wiley.com.Library of Congress Control Number: 2012937909Trademarks: Wiley, the Wiley logo, Wrox, the Wrox logo, Programmer to Programmer, ... characters or numbers. A data frame or a matrix will have a rectangular two-dimensional structure. A list will appear as a series of separately named vectors; each name starts with a dollar...