作文范文之雅思作文线状图.docx

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1、雅思作文线状图【篇一：雅思小作文——线形图(linegraphs)】智课网ielts备考资料雅思小作文——线形图（linegraphs）摘要：线形图是雅思写作task1里常考的图形之一，其写作非常值得我们深入研究。现专供以下学习材料，希望能对各位“雅友”的线形图写作带去一些启发和帮助。线形图是雅思写作task1里常考的图形之一，其写作非常值得我们深入研究。现专供以下学习材料，希望能对各位“雅友”的线形图写作带去一些启发和帮助。linegraphslinegraphsaremorepopularthanallothergraphscombinedbecauseth

2、eirvisualcharacteristicsrevealdatatrendsclearlyandthesegraphsareeasytocreate.linegraphs,especiallyusefulinthefieldsofstatisticsandscience,areoneofthemostcommontoolsusedtopresentdata.alinegraphisavisualcomparisonofhowtwovariables—shownonthex-andy-axes—arerelatedorvarywitheachother.its

3、howsrelatedinformationbydrawingacontinuouslinebetweenallthepointsonagrid.forinformationontheshapesoflinegraphs,seetheorganizingdatachapter.linegraphscomparetwovariables:oneisplottedalongthex-axis(horizontal)andtheotheralongthey-axis(vertical).they-axisinalinegraphusuallyindicatesquan

4、tity(e.g.,dollars,litres)orpercentage,whilethehorizontalx-axisoftenmeasuresunitsoftime.asaresult,thelinegraphisoftenviewedasatimeseriesgraph.forexample,ifyouwantedtographtheheightofabaseballpitchovertime,youcouldmeasurethetimevariablealongthex-axis,andtheheightalongthey-axis.although

5、theydonotpresentspecificdataaswellastablesdo,linegraphsareabletoshowrelationshipsmoreclearlythantablesdo.linegraphscanalsodepictmultipleserieswhichareusuallythebestcandidatefortimeseriesdataandfrequencydistribution.egraphsshareasimilarpurpose.thecolumngraph,however,revealsachangeinma

6、gnitude,whereasthelinegraphisusedtoshowachangeindirection.insummary,linegraphsshowspecificvaluesofdatawellrevealtrendsandrelationshipsbetweendatacomparetrendsindifferentgroupsofavariablegraphscangiveadistortedimageofthedata.ifinconsistentscalesontheaxesofalinegraphforcedatatoappearin

7、acertainway,thenagraphcanevenrevealatrendthatisentirelydifferentfromtheoneintended.thismeansthattheintervalsbetweenadjacentpointsalongtheaxismaybedissimilar,orthatthesamedatachartedintwographsusingdifferentscaleswillappeardifferent.example1–plottingatrendovertimefigure1showsoneobviou

8、strend,thefl