資源描述：
《the r book getting started》由會員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在工程資料-天天文庫。
1、1GettingStarted1.1HowtousethisbookTrytoputyourselfinoneofthefollowingcategories,thengototheappropriatecategoryheadingwithinthissectionto?ndsomesuggestionsabouthowyoumightgetbestvaluefromthisbook:Beginnerinbothcomputingandstatistics(Section1.1.1);Stu
2、dentneedinghelpwithprojectwork(1.1.2);DonesomeRandsomestatistics,butkeentolearnmoreofboth(1.1.3);DoneregressionandANOVA,butwanttolearnmoreadvancedstatisticalmodelling(1.1.4);Experiencedinstatistics,butabeginnerinR(1.1.5);Experiencedincomputing,but
3、abeginnerinR(1.1.6);Familiarwithstatisticsandcomputing,butneedafriendlyreferencemanual(1.1.7).1.1.1BeginnerinbothcomputingandstatisticsThebookisstructuredprincipallywithyouinmind.Therearesixkeythingstolearn:howtoarrangeyourdata,howtoreadthedataintoR,
4、howtocheckthedataoncewithinR,howtoselecttheappropriatestatisticalmodelandapplyitcorrectly,howtointerprettheoutput,andhowtopresenttheanalysisforpublication.Itisessentialthatyouunderstandthebasicsthoroughlybeforetryingtodothemorecomplicatedthings,sostud
5、yChapters3–6carefullytobeginwith.Doalloftheexercisesthatareillustratedinthetextonyourowncomputer.Nowyouneedtodothehardpart,whichisselectingtherightstatisticstouse.Modelchoiceisextremelyimportant,andisthethingthatwilldevelopmostwithexperience.Donotbysh
6、ytoaskforexperthelpwiththis.Neverdoananalysisthatismorecomplicatedthanitneedstobe,sostartbyreadingabouttheclassicalteststoseeifoneofthese?tsyourpurposes(Chapter8).Finally,trytounderstandthedistinctionbetweenregression(Chapter10)wheretheexplanatoryvari
7、ableiscontinuous,andanalysisofvariance(Chapter11),wheretheexplanatoryvariableiscategorical.Oneofthesetwoislikelytobethemostcomplicatedmethodyouwillneed.TheRBook,SecondEdition.MichaelJ.Crawley.?2013JohnWiley&Sons,Ltd.Published2013byJohnWiley&Sons,Ltd.2
8、THERBOOK1.1.2StudentneedinghelpwithprojectworkThe?rstthingtoensureisthatyouknowthedifferencebetweenyourresponsevariableandyourexplanatoryvariable,andthedistinctionbetweenacontinuousvariableandacategoricalvariable(Chapter5).Onceyouhavemasteredt
