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1、www.ebooks.acParallelRQ.EthanMcCallumandStephenWestonBeijing•Cambridge•Farnham•Köln•Sebastopol•TokyoParallelRbyQ.EthanMcCallumandStephenWestonCopyright©2012Q.EthanMcCallumandStephenWeston.Allrightsreserved.PrintedintheUnitedStatesofAmerica.PublishedbyO’ReillyMedia,In
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3、:(800)998-9938orcorporate@oreilly.com.Editors:MikeLoukidesandMeghanBlanchetteCoverDesigner:KarenMontgomeryProductionEditor:KristenBorgInteriorDesigner:DavidFutatoProofreader:O’ReillyProductionServicesIllustrator:RobertRomanoRevisionHistoryfortheFirstEdition:2011-10-2
4、1FirstreleaseSeehttp://oreilly.com/catalog/errata.csp?isbn=9781449309923forreleasedetails.NutshellHandbook,theNutshellHandbooklogo,andtheO’ReillylogoareregisteredtrademarksofO’ReillyMedia,Inc.ParallelR,theimageofarabbit,andrelatedtradedressaretrademarksofO’ReillyMedi
5、a,Inc.Manyofthedesignationsusedbymanufacturersandsellerstodistinguishtheirproductsareclaimedastrademarks.Wherethosedesignationsappearinthisbook,andO’ReillyMedia,Inc.,wasawareofatrademarkclaim,thedesignationshavebeenprintedincapsorinitialcaps.Whileeveryprecautionhasbe
6、entakeninthepreparationofthisbook,thepublisherandauthorsassumenoresponsibilityforerrorsoromissions,orfordamagesresultingfromtheuseoftheinformationcon-tainedherein.ISBN:978-1-449-30992-3www.ebooks.ac[LSI]1319202138TableofContentsPreface................................
7、.....................................vii1.GettingStarted.........................................................1WhyR?1WhyNotR?1TheSolution:ParallelExecution2ARoadMapforThisBook2WhatWe’llCover3LookingForward…3WhatWe’llAssumeYouAlreadyKnow3InaHurry?4snow4multicore4pa
8、rallel4R+Hadoop4RHIPE5Segue5Summary52.snow..................................................................7QuickLook7HowItWorks7S
