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Visualization and data mapping

on Oct 24, 2013

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on oct 23, 2013 at Dev.study

on oct 23, 2013 at Dev.study
by nacyot(Daekwon Kim)

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Visualization and data mappingPresentation Transcript

• Visualization and Data Mapping Daekwon Kim propellerheaven@gmail.com
• King Sejong
• William Playfair
• Score Data Class Mathematics Korean English Science Score 80 90 60 50
• Source Code of Bar Plot barplot( c(80,90,60,70), names.arg=c("Mathematics","Korean","English","Science"), col=rainbow(4), ylim=c(0,100) )
• Graph
• Data mapping 데이터(변수)를눈에보이는요소에연결시키는일 위표에서우리가가진변수 과목(Class):Nominal 점수(Score):Ratio
• Variables => Aesthetics Class=>barorbar.name Score=>bar.height
• Graph Again
• Where is the color? Graphliteracy
• Variables => Aesthetics Data.Class=>bar.name Data.Class=>bar.color(Duplication!) Data.Score=>bar.height barplot( #Date.Score=>bar.height c(80,90,60,70), #Data.Class=>bar.name names.arg=c("Mathematics","Korean","English","Science"), #Data.Class=>bar.color col=rainbow(4), #Y-axisrange ylim=c(0,100) )
• Barplots
• Useless Colors
• Remove color barplot( #Date.Score=>bar.height c(80,90,60,70), #Data.Class=>bar.name names.arg=c("Mathematics","Korean","English","Science"), #Y-axisrange ylim=c(0,100) )
• Graph
• Libreoffice Calc
• Another Data Class Korean English Physics Biology Chemisry Category Language Language Science Science Science Score 90 85 70 75 60
• Data Mapping Again Data.Class=>bar.name Data.Category=>bar.color Data.Score=>bar.height barplot( #Date.Score=>bar.height c(90,85,70,75,60), #Data.Class=>bar.name names.arg=c("Korean","English","Physics","Biology","Chemistry"), #Data.Category=>Color col=c("gold","gold","azure","azure","azure") #Y-axisrange ylim=c(0,100) )
• Graph
• ggplot2 HadleyWickham 그래프를그리기위한R패키지 R에서가장많이쓰이는패키지 #ggplot2패키지설치 install.packages('ggplot2') #ggplot2패키지로드 library(ggplot2)
• The grammar of graphics  LelandWilkinson ggplot2는이책의이론에기반 ggplot2gg는Thegrammarofgraphics의줄임말
• Data data_class= c("Korean","English","Physics","Biology","Chemistry") data_score= c(90,85,70,75,60) data_category= c("language","language","science","science","science") score_data=data.frame( class=data_class, category=data_category, score=data_score ) #평가 classcategoryscore 1Koreanlanguage90 2Englishlanguage85 3Physicsscience70 4Biologyscience75 5Chemistryscience60
• Source Code #그래프시작,데이터지정 bargraph=ggplot(score_data)+ #그래프종류지정 geom_bar()+ #데이터와시각적요소의맵핑1 #Data.Class=>bar.name aes(x=class)+ #데이터와시각적요소의맵핑2 #Data.Score=>bar.height aes(y=score)+ #Y축범위지정 ylim(0,100)
• Graph
• Mapping Category Data To Color #그래프시작,데이터지정 bargraph=ggplot(score_data)+ #그래프종류지정 geom_bar()+ #데이터와시각적요소의맵핑1 #Data.Class=>bar.name aes(x=factor(class))+ #데이터와시각적요소의맵핑2 #Data.Score=>bar.height aes(y=score)+ #데이터와시각적요소의맵핑3 #Data.Category=>bar.color aes(fill=category)+ #Y축범위지정 ylim(0,100)
• Graph
• Coordination #그래프시작,데이터지정 bargraph=ggplot(score_data)+ #그래프종류지정 geom_bar()+ #데이터와시각적요소의맵핑1 #Data.Class=>bar.name aes(x=class)+ #데이터와시각적요소의맵핑2 #Data.Score=>bar.height aes(y=score)+ #데이터와시각적요소의맵핑3 #Data.Category=>bar.color aes(fill=category)+ #좌표계지정 coord_flip()+ #Y축범위지정 ylim(0,100)
• Graph
• Creating Graph Process
• Creating Graph Process Variables Algebra Scales Statistics Geometry Coordinates Aesthetics
• Creating Graph Process Process Variables Algebra Scales Statistics Geometry Coordinates Aesthetics Who Science Programmer Designer
• Mathematical Graph Twovariables
• 3 Dimension Threevariables
• Gapminder Prof.HansRosling
• What Dimension? XYspaceisnot2dementioninvisualization X Y Color Size Interaction Year Nation …
• Charles Joseph Minard WhatDimension? 
• Lapisan
• MangakaMap 2008
• Putne 2013
• Moplo 2013
• Thank you very much!