{"id":2069,"date":"2019-12-04T00:22:58","date_gmt":"2019-12-03T15:22:58","guid":{"rendered":"http:\/\/141.164.34.82\/?p=2069"},"modified":"2022-01-10T23:31:56","modified_gmt":"2022-01-10T14:31:56","slug":"%ea%b0%9c%ec%a0%95%ed%8c%90-%eb%b0%9c%ea%b0%84-r%eb%a1%9c-%ed%95%98%eb%8a%94-%eb%b9%85%eb%8d%b0%ec%9d%b4%ed%84%b0-%eb%b6%84%ec%84%9d-%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%84%ec%b2%98%eb%a6%ac%ec%99%80","status":"publish","type":"post","link":"http:\/\/ds.sumeun.org\/?p=2069","title":{"rendered":"\uac1c\uc815\ud310 \ubc1c\uac04! R\ub85c \ud558\ub294 \ube45\ub370\uc774\ud130 \ubd84\uc11d: \ub370\uc774\ud130 \uc804\ucc98\ub9ac\uc640 \uc2dc\uac01\ud654"},"content":{"rendered":"<h1><img loading=\"lazy\" class=\"alignnone size-full wp-image-2068\" src=\"http:\/\/141.164.34.82\/wp-content\/uploads\/2019\/02\/bigData2nd_ad02.png\" alt=\"\" width=\"1477\" height=\"2874\" \/><\/h1>\n<h1>(\uac1c\uc815\ud310!)R\ub85c \ud558\ub294 \ube45\ub370\uc774\ud130 \ubd84\uc11d: \ub370\uc774\ud130 \uc804\ucc98\ub9ac\uc640 \uc2dc\uac01\ud654<\/h1>\n<ul>\n<li>\uc81c\ubaa9 : R\ub85c \ud558\ub294 \ube45\ub370\uc774\ud130 \ubd84\uc11d(\uac1c\uc815\ud310) | \ucd9c\ud310\uc0ac : \uc228\uc740\uc6d0\ub9ac<\/li>\n<li>\uc9c0\uc74c : \uae40\uad8c\ud604 \/ \uac00\uaca9 : 25,000\uc6d0 \/ \ud310\ud615 : 176&#215;250<\/li>\n<li>\ucabd\uc218 : 344\ucabd \/ \ubc1c\ud589\uc77c : 2020\ub144 1\uc6d4 14\uc77c \/ ISBN : 979-11-960144-9-0(93000)<\/li>\n<\/ul>\n<p>\uc774 \ucc45\uc740 \uc5b4\ub290 \uc815\ub3c4 \ud504\ub85c\uadf8\ub798\ubc0d \uacbd\ud5d8\uc774 \uc788\ub294 \ub3c5\uc790\ub97c \ub300\uc0c1\uc73c\ub85c, \uc624\ud508 \uc18c\uc2a4 \ub370\uc774\ud130 \ubd84\uc11d \ub3c4\uad6c\uc778 R\uc744 \ud65c\uc6a9\ud558\uc5ec \ub370\uc774\ud130\ub97c \ubd88\ub7ec\ub4e4\uc774\uace0, \uac00\uacf5\ud558\uace0, \uc2dc\uac01\ud654\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud55c\ub2e4. \uc774 \ucc45\uc740 \uc2dc\uc911\uc758 \ucc45\ub4e4\uacfc \ub2ec\ub9ac \ud2b9\uc815\ud55c \uae30\ub2a5\uc744 \ud558\ub294 \ud568\uc218\ub4e4\uc744 \uc124\uba85\ud558\uae30 \uc804\uc5d0 \ub370\uc774\ud130 \uc804\ucc98\ub9ac\uc758 \ubaa9\uc801\uacfc \uae30\ub2a5\uc5d0 \ub300\ud55c \uac1c\ub150\uc801\uc778 \uc774\ud574\ub97c \uc6b0\uc120 \ud560 \uc218 \uc788\ub3c4\ub85d \ub3c4\uc640\uc900\ub2e4. \uadf8\ub9ac\uace0 \ub0a0\uc9dc\uc2dc\uac04 \uc790\ub8cc\ud615, \ubb38\uc790\uc5f4 \uc790\ub8cc\ud615, \uc815\uaddc\ud45c\ud604\uc2dd \ub4f1\uc5d0 \ub300\ud55c \uc6d0\ub9ac\uc640 \uc751\uc6a9 \ubc29\ubc95\uc744 \uc790\uc138\ud558\uac8c \uc124\uba85\ud558\uc5ec \ubcf5\uc7a1\ud55c \uc804\ucc98\ub9ac \uacfc\uc815\uc5d0\uc11c\ub3c4 \ub17c\ub9ac\uc801 \uc624\ub958\ub97c \ubc94\ud558\uc9c0 \uc54a\ub3c4\ub85d \ud55c\ub2e4. \ubd84\uc0b0\ucc98\ub9ac \uc5c6\uc774 \ube45\ub370\uc774\ud130 \ucc98\ub9ac\ub97c \ud560 \uc218 \uc788\ub294 \ub9c8\uc9c0\ub9c9 \ubcf4\ub958\uc778 \ub370\uc774\ud130\ud14c\uc774\ube14\uc744 dplyr \ud328\ud0a4\uc9c0\uc758 \ud568\uc218\uc640 \ube44\uad50\ud558\uc5ec \uc774\ud574\ub97c \ub3c4\uc654\uace0,ggplot2\uc758 \uc124\uba85\uc5d0\uc11c\ub294 \ud50c\ub86f\uc758 \uc218\ub9ce\uc740 \uc635\uc158\uc744 \uc815\ud558\ub294 \ubc29\ubc95\uc744 \ud55c \ub208\uc5d0 \ubcf4\uae30 \uc2f6\uac8c \ubcf4\uc5ec\uc900\ub2e4. \uadf8 \ubc16\uc5d0\ub3c4 \ubd80\ub85d\uc73c\ub85c RStudio\uc758 \uce58\ud2b8\uc2dc\ud2b8\ub97c \uc218\ub85d\ud558\uc600\ub2e4. \uc5b4\ub290 \uc815\ub3c4 R\uc5d0 \uc775\uc219\ud55c \ub3c5\uc790\ub4e4\uc5d0\uac8c\ub3c4 R\uc758 \ub370\uc774\ud130 \uc804\ucc98\ub9ac\uc640 \uc2dc\uac01\ud654\uc5d0 \ub300\ud574 \uc880 \ub354 \uae4a\uc774 \uc54c \uc218 \uc788\uac8c \ud558\uc600\ub2e4. \ub808\ud37c\ub7f0\uc2a4 \ubd81\uc73c\ub85c\ub3c4 \uc190\uc0c9\uc774 \uc5c6\ub2e4.<\/p>\n<h2>\ucd9c\ud310\uc0ac \uc11c\ud3c9<\/h2>\n<p>\uc774 \ucc45\uc740 \ucfe1\ubd81(Cookbook)\uc774 \uc544\ub2c8\ub2e4!<\/p>\n<p>\ubb3c\ub860 \ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\uc73c\ub85c \uc6d0\ud558\ub294 \ubaa9\uc801\uc744 \ub2ec\uc131\ud558\ub294 \uac00\uc7a5 \ube60\ub978 \ubc29\ubc95\uc740<br \/>\n\uc774\ubbf8 \uc791\ub3d9\ud558\ub294 \uc18c\uc2a4 \ucf54\ub4dc\ub97c \uc2e4\ud589\ud558\ub294 \uac83\uc774\ub2e4. \ud558\uc9c0\ub9cc \uc18c\uc2a4 \ucf54\ub4dc\ub97c \uace0\uccd0\uc57c \ud55c\ub2e4\uba74!?!<\/p>\n<p>\uadf8 \ub54c\ubd80\ud130\ub294 \uc218\ub9ce\uc740 \ubb38\ubc95\uc624\ub958, \ub17c\ub9ac\uc624\ub958(\ubc84\uadf8)\uc5d0<br \/>\n\uc798 \ub3cc\uc544\uac00\ub358 \ud504\ub85c\uadf8\ub7a8\ub3c4 \uc548 \ub3cc\uc544\uac00\ub294 \uc2e0\ube44\ud55c \uacbd\ud5d8\uc744 \ud558\uac8c \ub41c\ub2e4.<\/p>\n<p>\uadf8 \ubc84\uadf8\ub780 \ubb34\uc5c7 \ub54c\ubb38\uc5d0 \uc0dd\uae30\ub294\uac00?<\/p>\n<p>\uc2e4\uc218, \uc218\uba74\ubd80\uc871, \uc8fc\uc758 \uc0b0\ub9cc \ub4f1 \ub2e4\uc591\ud55c \uc6d0\uc778\uc774 \uc788\uaca0\uc9c0\ub9cc,<br \/>\n\ub610 \ub2e4\ub978 \uc8fc\uc694 \uc6d0\uc778\uc740 <strong>\ud2bc\ud2bc\ud558\uc9c0 \ubabb\ud55c \uae30\ucd08<\/strong>\uc5d0 \uc788\ub2e4!<\/p>\n<ul>\n<li>NA &gt; 3\uc740 \uc65c NA\uc774\uace0, NA | TRUE\ub294 \uc65c TRUE\uc778\uac00?<\/li>\n<li>\ub370\uc774\ud130\ud14c\uc774\ube14(data.table)\uc758 \ubcf5\uc7a1\ud55c \ubb38\ubc95\uc740 \uc5b4\ub5bb\uac8c \uc774\ud574\ud574\uc57c \ud558\ub294\uac00?<\/li>\n<li>\uc815\uaddc\ud45c\ud604\uc2dd\uc758 \uba54\ud0c0\ubb38\uc790\ub294 \ubb34\uc5c7\uc774\uace0, \uc5b4\ub5bb\uac8c \ub2e4\ub8e8\uc5b4\uc57c \ud558\ub294\uac00?<\/li>\n<li>ggplot2\uc758 \uc218\ub9ce\uc740 \uc635\uc158\uc740 \uc5b4\ub5bb\uac8c \uc678\uc6cc\uc57c \ud560\uae4c?<\/li>\n<\/ul>\n<p>\ud328\ud0a4\uc9c0, \ubca1\ud130, \ub370\uc774\ud130\ud504\ub808\uc784 \ub4f1 \uae30\ucd08\ubd80\ud130 \ub370\uc774\ud130\ud14c\uc774\ube14, \uc815\uaddc\ud45c\ud604\uc2dd, ggplot2\uae4c\uc9c0<br \/>\n\ub370\uc774\ud130 \uc804\ucc98\ub9ac\uc640 \uc2dc\uac01\ud654\ub97c \uc704\ud55c \ud575\uc2ec\uc744 \ubaa8\ub450 \ub2f4\uc558\ub2e4!<\/p>\n<h2>\uc800\uc790\uc18c\uac1c<\/h2>\n<h4>\uc9c0\uc740\uc774 : \uae40\uad8c\ud604<\/h4>\n<ul>\n<li>\uc11c\uc6b8\ub300\ud559\uad50 \uc778\uc9c0\uacfc\ud559 \ubc15\uc0ac<\/li>\n<li>\uc11c\uc6b8\ub300\ud559\uad50 \ubb3c\ub9ac\ud559 \ud559\uc0ac<\/li>\n<li>\uc11c\uc6b8\ub300\ud559\uad50 \uc0ac\ud68c\uacfc\ud559\uc6d0 \ubc29\ubc95\ub860 \ucee8\uc124\ud134\ud2b8<\/li>\n<li>\uc11c\uc6b8\ub300\ud559\uad50 \uc0ac\ud68c\uacfc\ud559\uc6d0 R \uac15\uc758<\/li>\n<li>\uc11c\uac15\ub300\ud559\uad50, \uad6d\ubbfc\ub300\ud559\uad50 \ub4f1 \uac15\uc758(\uc2ec\ub9ac\ud1b5\uacc4, \ubd84\uc11d\ud504\ub85c\uadf8\ub798\ubc0d)<\/li>\n<li>R \ud328\ud0a4\uc9c0 mirt\uc758 \uacf5\ud5cc\uc790<\/li>\n<li>&#8216;\uae30\ucd08 \ud1b5\uacc4\ud559\uc758 \uc228\uc740 \uc6d0\ub9ac&#8217;, &#8216;\uc218\ud559\uc758 \uc228\uc740 \uc6d0\ub9ac&#8217; \ub4f1\uc758 \uc800\uc790<\/li>\n<li>2019\ub144 \ubc95\ud559\uc801\uc131\uc2dc\ud5d8 \ubd84\uc11d(\ubc95\ud559\uc804\ubb38\ub300\ud559\uc6d0\ud611\uc758\ud68c \uc758\ub8b0)<\/li>\n<\/ul>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>\ucc28 \ub840<\/p>\n<p>\uc11c\ubb38 1<\/p>\n<p>1 \ub4e4\uc5b4\uac00\uae30 3<br \/>\n1.1 R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4<\/p>\n<p>2 R\uc758 \ud328\ud0a4\uc9c0(Packages) 5<br \/>\n2.1 \ud328\ud0a4\uc9c0 \uc124\uce58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5<br \/>\n2.2 \ud328\ud0a4\uc9c0 \uad00\ub828 \uc815\ubcf4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6<br \/>\n2.3 \ud328\ud0a4\uc9c0 \ubd88\ub7ec\uc624\uae30\/\ud655\uc778\ud558\uae30\/\uc81c\uac70\ud558\uae30 . . . . . . . . . . . . . . . . . . 7<br \/>\n2.4 \ud328\ud0a4\uc9c0 \uad00\ub9ac\ud558\uae30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7<br \/>\n2.5 \uc911\ubcf5\ub418\ub294 \ud568\uc218\uc640 \ubcc0\uc218 . . . . . . . . . . . . . . . . . . . . . . . . . . 8<\/p>\n<p>3 R\uc758 \ubcc0\uc218, \uc790\ub8cc\ud615, \uc5f0\uc0b0\/\ud568\uc218 9<br \/>\n3.1 R\uc758 \ubcc0\uc218 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9<br \/>\n3.2 R\uc758 \ub370\uc774\ud130 \ud0c0\uc785(\uc790\ub8cc\ud615) . . . . . . . . . . . . . . . . . . . . . . . . 13<br \/>\n3.3 \uc5f0\uc0b0(Operations)\uacfc \ud568\uc218(Functions) . . . . . . . . . . . . . . . . . 16<br \/>\n3.4 \ud2b9\ubcc4\ud55c \uac12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21<\/p>\n<p>4 \ub370\uc774\ud130 \uad6c\uc870 25<br \/>\n4.1 \ubca1\ud130(Vector) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25<br \/>\n4.2 \ud589\ub82c(matrix), \ubc30\uc5f4(array), \ub370\uc774\ud130\ud504\ub808\uc784(data.frame), \ub9ac\uc2a4\ud2b8(list) 37<br \/>\n4.3 \ud589\ub82c, \ubc30\uc5f4, \ub370\uc774\ud130\ud504\ub808\uc784, \ub9ac\uc2a4\ud2b8\uc758 \ubd80\ubd84\uc120\ud0dd\ud558\uae30 . . . . . . . . . . . . 42<br \/>\n4.4 \ud589\ub82c, \ubc30\uc5f4, \ub370\uc774\ud130\ud504\ub808\uc784, \ub9ac\uc2a4\ud2b8 \uc218\uc815\ud558\uae30 . . . . . . . . . . . . . . . 46<br \/>\n4.5 CRUD(Create, Read, Update, Delete) . . . . . . . . . . . . . . . 47<br \/>\n4.6 3\ucc28 \uc774\uc0c1\uc758 \ub2e4\ucc28\uc6d0 \ubc30\uc5f4 . . . . . . . . . . . . . . . . . . . . . . . . . 49<\/p>\n<p>5 dplyr \ud328\ud0a4\uc9c0\ub97c \ud65c\uc6a9\ud55c \ub370\uc774\ud130 \uac00\uacf5 57<\/p>\n<p>5.1 magrittr\uc758 \ud30c\uc774\ud504 \uc5f0\uc0b0\uc790 . . . . . . . . . . . . . . . . . . . . . . . 57<br \/>\n5.2 dplyr\uc758 \ubc29\uc2dd: \ubd80\ubd84 \uc120\ud0dd(Subsetting) . . . . . . . . . . . . . . . . . 60<br \/>\n5.3 dplyr\uc758 \ubc29\uc2dd : \uc218\uc815 . . . . . . . . . . . . . . . . . . . . . . . . . . 67<br \/>\n5.4 dplyr\uc758 \uae30\ud0c0 \ud3b8\uc758 \uae30\ub2a5 . . . . . . . . . . . . . . . . . . . . . . . . . 73<\/p>\n<p>6 \ub0a0\uc9dc\uc640 \uc2dc\uac04(Date and Time) 77<br \/>\n6.1 R\uc758 \ub0a0\uc9dc\uc640 \uc2dc\uac04 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78<br \/>\n6.2 \ub0a0\uc9dc\uc758 \ud45c\uae30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79<br \/>\n6.3 \ub0a0\uc9dc \ud45c\uae30 \ubcc0\ud658 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80<br \/>\n6.4 \ub0a0\uc9dc\uc2dc\uac04 \ud45c\uae30 \uc778\uc2dd . . . . . . . . . . . . . . . . . . . . . . . . . . . 81<br \/>\n6.5 \ub0a0\uc9dc, \uc2dc\uac04 \uc5f0\uc0b0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85<br \/>\n6.6 \ub0a0\uc9dc(\uc2dc\uac04)\uc758 \ud2b9\uc815\ud55c \uc815\ubcf4 \ucc38\uc870 . . . . . . . . . . . . . . . . . . . . . 86<br \/>\n6.7 \ub0a0\uc9dc(\uc2dc\uac04) \uac31\uc2e0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87<br \/>\n6.8 \ud65c\uc6a9 \uc608 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90<\/p>\n<p>7 \ud329\ud130 \uc790\ub8cc\ud615 91<br \/>\n7.1 \ud329\ud130\ud615\uc758 \uc911\uc694\uc131 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92<br \/>\n7.2 \ub370\uc774\ud130 \uc804\ucc98\ub9ac\uc5d0 \uc788\uc5b4\uc11c \ud329\ud130\ud615 . . . . . . . . . . . . . . . . . . . . . 92<br \/>\n7.3 forcats \ud328\ud0a4\uc9c0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94<\/p>\n<p>8 R\ub85c \ub370\uc774\ud130 \uc77d\uc5b4\uc624\uae30 97<br \/>\n8.1 R \ub0b4\uc7a5 \ub370\uc774\ud130 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97<br \/>\n8.2 \ub4e4\uc5b4\uac00\uae30 : write.table\/read.table, save\/load . . . . . . . . . . . 98<br \/>\n8.3 \ud14d\uc2a4\ud2b8\ub85c \uc800\uc7a5\ub41c \ub370\uc774\ud130 \ud654\uc77c \uc77d\uae30 . . . . . . . . . . . . . . . . . . . 99<br \/>\n8.4 EXCEL \ud654\uc77c \uc77d\uae30 . . . . . . . . . . . . . . . . . . . . . . . . . . . 106<br \/>\n8.5 \uadf8 \ubc16\uc758 \ud1b5\uacc4 \ud504\ub85c\uadf8\ub7a8 \ub370\uc774\ud130 \ud654\uc77c . . . . . . . . . . . . . . . . . . . 107<\/p>\n<p>9 \ub370\uc774\ud130 \uac00\uacf5 109<br \/>\n9.1 \uc9d1\ub2e8\ubcc4\ub85c \ud568\uc218 \uc801\uc6a9\ud558\uae30 . . . . . . . . . . . . . . . . . . . . . . . . . 110<br \/>\n9.2 \uc5ec\ub7ec \ub370\uc774\ud130 \ud504\ub808\uc784 \ud569\uce58\uae30 . . . . . . . . . . . . . . . . . . . . . . . 118<br \/>\n9.3 \uc138\ub85c\ud615\/\uac00\ub85c\ud615 \ubcc0\ud658 . . . . . . . . . . . . . . . . . . . . . . . . . . . 124<\/p>\n<p>10 \ud328\ud0a4\uc9c0 \ub370\uc774\ud130\ud14c\uc774\ube14(data.table) 129<br \/>\n10.1 package:dplyr\uacfc package:data.table\uc758 \ube44\uad50 . . . . . . . . . . . . . 129<br \/>\n10.2 data.table\uc758 \ud0a4(key) \ud65c\uc6a9\ud558\uae30 . . . . . . . . . . . . . . . . . . . . 145<br \/>\n10.3 data.table\uc744 \ud65c\uc6a9\ud55c \ubcd1\ud569 . . . . . . . . . . . . . . . . . . . . . . . 149<br \/>\n10.4 \uadf8 \ubc16\uc758 \ud2b9\uc218\ud55c \uae30\ud638 : .SD, .GRP, .N, .I, .BY, .EACHI, .. . . . . . . . . 158<\/p>\n<p>10.5 \ub370\uc774\ud130\ud14c\uc774\ube14 \uc885\ud569 . . . . . . . . . . . . . . . . . . . . . . . . . . . 165<\/p>\n<p>11 \ubb38\uc790\uc5f4(character) 167<br \/>\n11.1 \uc778\ucf54\ub529 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167<br \/>\n11.2 \ub300\ud45c\uc801\uc778 \uc778\ucf54\ub529 \ubc29\ubc95 . . . . . . . . . . . . . . . . . . . . . . . . . . 168<br \/>\n11.3 \uc778\ucf54\ub529 \ubc29\ubc95\uc758 \uc885\ub958 . . . . . . . . . . . . . . . . . . . . . . . . . . . 168<br \/>\n11.4 R\uc5d0\uc11c \uc778\ucf54\ub529 \ub2e4\ub8e8\uae30 . . . . . . . . . . . . . . . . . . . . . . . . . . 169<br \/>\n11.5 R\uc5d0\uc11c \ubb38\uc790\uc5f4 \uc785\ub825 . . . . . . . . . . . . . . . . . . . . . . . . . . . 171<br \/>\n11.6 \uc720\ub2c8\ucf54\ub4dc \uc815\uaddc\ud654(Normalization) . . . . . . . . . . . . . . . . . . . 173<br \/>\n11.7 \ubb38\uc790\uc5f4\uc758 \uc815\ub82c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174<br \/>\n11.8 \ubb38\uc790\uc5f4\uc744 \ub2e4\ub8e8\ub294 \ud568\uc218\ub4e4 . . . . . . . . . . . . . . . . . . . . . . . . . 175<br \/>\n11.9 \ud328\ud0a4\uc9c0 stringr\uc744 \ud65c\uc6a9\ud55c \ubb38\uc790\uc5f4 \uad00\ub9ac . . . . . . . . . . . . . . . . . 183<\/p>\n<p>12 \uc815\uaddc\ud45c\ud604\uc2dd 185<br \/>\n12.1 R\uacfc \uc815\uaddc\ud45c\ud604\uc2dd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185<br \/>\n12.2 \ud655\uc7a5\uc815\uaddc\ud45c\ud604\uc2dd(ERE; Extended Regular Expressions) . . . . . . . 186<br \/>\n12.3 Perl \ud638\ud658 \uc815\uaddc\ud45c\ud604\uc2dd . . . . . . . . . . . . . . . . . . . . . . . . . . 196<br \/>\n12.4 \ud328\ud0a4\uc9c0 stringr, stringi . . . . . . . . . . . . . . . . . . . . . . . . 198<br \/>\n12.5 stringi \ud328\ud0a4\uc9c0\uc640 \uc815\uaddc\ud45c\ud604\uc2dd\uc744 \ud65c\uc6a9\ud55c \ubb38\uc790\uc5f4 \ub370\uc774\ud130 \uac00\uacf5 . . . . . . . 199<\/p>\n<p>13 \ud750\ub984 \uc81c\uc5b4\uc640 \ud568\uc218 201<br \/>\n13.1 \uc81c\uc5b4\ubb38: \uc870\uac74\uacfc \ubc18\ubcf5 . . . . . . . . . . . . . . . . . . . . . . . . . . 201<br \/>\n13.2 \ud568\uc218 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208<\/p>\n<p>14 \uae30\uc220 \ud1b5\uacc4\ub7c9 215<br \/>\n14.1 1\ubcc0\uc218 \uae30\uc220 \ud1b5\uacc4\ub7c9 . . . . . . . . . . . . . . . . . . . . . . . . . . . 215<br \/>\n14.2 \ub370\uc774\ud130 \ud504\ub808\uc784\uc758 \ubaa8\ub4e0 \ubcc0\uc218(\uceec\ub7fc)\uc5d0 \ub300\ud574 \uc694\uc57d\ud1b5\uacc4\uce58 \uad6c\ud558\uae30 . . . . . . 218<\/p>\n<p>15 \uac04\ud3b8 \uc2dc\uac01\ud654 221<br \/>\n15.1 \uac04\ud3b8 \uc2dc\uac01\ud654\uc758 \uc608 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222<\/p>\n<p>16 ggplot2 227<br \/>\n16.1 \ub4e4\uc5b4\uac00\uae30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227<br \/>\n16.2 \uc2dc\uac01\uc801 \ub9f5\ud551(Aesthetic mapping) . . . . . . . . . . . . . . . . . . . 229<br \/>\n16.3 \uae30\ud558\ud559\uc801 \ub300\uc0c1(geom) . . . . . . . . . . . . . . . . . . . . . . . . . . 248<br \/>\n16.4 \ubcf4\uc870\uc120(Auxillary lines) . . . . . . . . . . . . . . . . . . . . . . . . 257<br \/>\n16.5 \uc88c\ud45c\uacc4(Coordinate system) . . . . . . . . . . . . . . . . . . . . . . 259<\/p>\n<p>16.6 Coordinate system . . . . . . . . . . . . . . . . . . . . . . . . . . 259<br \/>\n16.7 \ubc94\ub840(Legends) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265<br \/>\n16.8 \uc81c\ubaa9\uacfc \ud14c\ub9c8(Title and Theme) . . . . . . . . . . . . . . . . . . . . 267<br \/>\n16.9 \uacb0\uacfc \uc815\ub9ac \ubc0f \uc800\uc7a5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273<br \/>\n16.10ggplot2(gg = Grammar of Graphics) \ucd1d\uc815\ub9ac . . . . . . . . . . . . 275<\/p>\n<p>17 \uc5f0\uc2b5\ubb38\uc81c \ud574\ub2f5 279<br \/>\n\ub370\uc774\ud130 \uad6c\uc870 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279<br \/>\n\ub370\uc774\ud130 \ubd88\ub7ec\ub4e4\uc774\uae30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280<br \/>\n\uc81c\uc5b4\uc640 \ud568\uc218 I. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282<\/p>\n<p>R\uc5d0\uc11c \ud558\ub294 \ubca1\ud130\/\ud589\ub82c \uc5f0\uc0b0 283<br \/>\n\ubca1\ud130\uc5f0\uc0b0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283<br \/>\n\ud55c \ud589\ub82c \uc5f0\uc0b0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283<br \/>\n\ub450 \ud589\ub82c\uc758 \uc5f0\uc0b0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284<br \/>\n\uc120\ud615(\ud589\ub82c) \ub300\uc218 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284<\/p>\n<p>A \uc218 \ud45c\uae30 \ubc29\ubc95 287<br \/>\nA.1 \uad6d\uc81c\ud45c\uc900 ISO 80000-1 . . . . . . . . . . . . . . . . . . . . . . . . . 287<br \/>\nA.2 \ud55c\uae00 \ub9de\ucda4\ubc95 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287<br \/>\nA.3 \ub2e4\ub978 \ub098\ub77c\uc758 \uc218 \ud45c\uae30 . . . . . . . . . . . . . . . . . . . . . . . . . . . 288<br \/>\nA.4 R\uc5d0\uc11c \uc218 \uc77d\uae30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288<\/p>\n<p>B dplyr\uc744 SQL\ub85c \ubc88\uc5ed\ud558\uae30 289<br \/>\nB.1 \uc218\uae30 \ubc88\uc5ed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289<br \/>\nB.2 dbplyr \ud328\ud0a4\uc9c0\ub97c \uc0ac\uc6a9\ud55c \uc790\ub3d9 \ubc88\uc5ed . . . . . . . . . . . . . . . . . . . 292<\/p>\n<p>C \ud654\uc77c\uacfc \ub514\ub809\ud1a0\ub9ac \uad00\ub828 \ud568\uc218\ub4e4 293<br \/>\nC.1 \ub514\ub809\ud1a0\ub9ac . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293<br \/>\nC.2 \uc2a4\ud06c\ub9bd\ud2b8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295<br \/>\nC.3 \ud654\uc77c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296<\/p>\n<p>D R\uc758 \uc0c9, \uc138\uacc4 \ud0c0\uc784\uc874 299<\/p>\n<p>E \uce58\ud2b8\uc2dc\ud2b8 305<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<p><strong>\uc628\ub77c\uc778 \uc11c\uc810 \uc0b4\ud3b4\ubcf4\uae30(\ucd9c\uac04 \uc2dc \uc5c5\ub370\uc774\ud2b8 \uc608\uc815)<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/book.naver.com\/bookdb\/book_detail.nhn?bid=15970846\">\ub124\uc774\ubc84\ucc45<\/a><\/li>\n<li><a href=\"http:\/\/www.yes24.com\/Product\/Goods\/85008235\">\uc608\uc2a424<\/a><\/li>\n<li><a href=\"http:\/\/www.kyobobook.co.kr\/product\/detailViewKor.laf?mallGb=KOR&amp;ejkGb=KOR&amp;linkClass=&amp;barcode=9791196014490\">\uc778\ud130\ub137 \uad50\ubcf4\ubb38\uace0<\/a><\/li>\n<li><a href=\"https:\/\/www.aladin.co.kr\/shop\/wproduct.aspx?ItemId=222097118\">\uc54c\ub77c\ub518<\/a><\/li>\n<li><a href=\"http:\/\/book.interpark.com\/product\/BookDisplay.do?_method=detail&amp;sc.prdNo=324104742\">\uc778\ud130\ud30c\ud06c \ub3c4\uc11c<\/a><\/li>\n<li><a href=\"http:\/\/www.ypbooks.co.kr\/book.yp?bookcd=100997665&amp;gubun=NV\">\uc601\ud48d\ubb38\uace0<\/a><\/li>\n<\/ul>\n<hr \/>\n<p>\ub354 \ube60\ub974\uac8c, \ub354 \uccb4\uacc4\uc801\uc73c\ub85c, \ub354 \uc644\ubcbd\ud558\uac8c,<br \/>\n\ub370\uc774\ud130 \ubd84\uc11d\uc744 \uc704\ud55c R\uc744 \ubc30\uc6b4\ub2e4!<\/p>\n<ul>\n<li>R \ucd5c\uc2e0 \ubc84\uc804 3.6.1(2019-07-05) \ubc18\uc601<\/li>\n<li>\ube45\ub370\uc774\ud130 \ubd84\uc11d\uc744 \uc704\ud55c \ucd5c\uc120\uc758 \uc120\ud0dd-<code>data.table<\/code> \ud328\ud0a4\uc9c0(\ucd5c\uc2e0\ubc84\uc804 1.12.6)\uc5d0 \ub300\ud55c \uc124\uba85 \uc218\ub85d<\/li>\n<li>RStudio\uc758 <code>ggplot2<\/code> \ub4f1 \ud328\ud0a4\uc9c0 \uce58\ud2b8\uc2dc\ud2b8(cheatsheet) \uc218\ub85d<\/li>\n<li>\ubc31\uacfc\uc0ac\uc804\uc2dd\uc758 \ub098\uc5f4\uc774 \uc544\ub2c8\ub77c \uac1c\ub150 \uc911\uc2ec\uc758 \uccb4\uacc4\uc801\uc778 \uc774\ud574 \uc911\uc2dc<\/li>\n<li>\uc880 \ub354 \ud14c\ud06c\ub2c8\uceec\ud55c \uc2ec\uce35 \ud65c\uc6a9 \ubc29\ubc95\uacfc \uc624\ub958\ub97c \uc0ac\uc804\uc5d0 \ubc29\uc9c0\ud558\ub294 \ubc29\ubc95 \uc124\uba85<\/li>\n<li>\uac01\uc885 \ucc38\uace0 \uc790\ub8cc \ubc0f \ud45c \uc218\ub85d<\/li>\n<li>\ub2e4\uc591\ud55c \uc6d0\uc11c\uc758 \ub0b4\uc6a9 \uc885\ud569\n<ul>\n<li>Spector(2008). Data Manipulation with R.<\/li>\n<li>Kabacoff(2015). R in Action: Data Analysis and Graphics with R<\/li>\n<li>Wickham(2016). ggplot2: Elegant Graphics for Data Analysis.<\/li>\n<li>Lander(2017). R for Everyone: Advanced Analytics and Graphics.<\/li>\n<li>Wickham &amp; Grolemund(2017). R for Data Science.<\/li>\n<li>Van Der Loo &amp; De Jong(2018). Statistical Data Cleaning with Applications in R.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><a href=\"https:\/\/buk.io\/@kb2183\"><strong>\uccb4\ud5d8\ud310<\/strong><\/a>\uc744 <strong><a href=\"http:\/\/buk.io\">buk.io<\/a><\/strong>\uc5d0\uc11c \uac04\ub2e8\ud558\uac8c \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<ul>\n<li><a href=\"http:\/\/141.164.34.82\">\uc228\uc740\uc6d0\ub9ac DS<\/a><\/li>\n<li><a href=\"http:\/\/books.sumeun.org\">\uc228\uc740\uc6d0\ub9ac \uc2e0\uac04\uc18c\uc2dd<\/a><\/li>\n<li><a href=\"http:\/\/sumeun.org\">\uc228\uc740\uc6d0\ub9ac<\/a><\/li>\n<\/ul>\n<p>\uc2e4\uc2b5\uc6a9 \ud654\uc77c\uc740 \ub2e4\uc74c\uc758 github\uc5d0\uc11c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4(2020-10 \uc5c5\ub370\uc774\ud2b8).<\/p>\n<ul>\n<li><a href=\"https:\/\/github.com\/kwhkim\/DSwithRv2\">https:\/\/github.com\/kwhkim\/DSwithRv2<\/a><\/li>\n<li>\uae30\uc874 \ud654\uc77c r-book-preproc-vis-02.zip<\/li>\n<\/ul>\n<hr \/>\n<ul>\n<li>\uc81c 1\ud310 : \uad6c\ud310\uc774 <a href=\"http:\/\/www.kyobobook.co.kr\/eventRenewal\/eventViewByPid.laf?eventId=84458\">\uad50\ubcf4\ubb38\uace0 2019\ub144 \uc62c\ud574\uc758 \ucc45<\/a> \ud6c4\ubcf4\ub85c \uc120\uc815\ub418\uc5c8\uc2b5\ub2c8\ub2e4! \uac10\uc0ac\ud569\ub2c8\ub2e4!<img loading=\"lazy\" class=\"alignnone size-full wp-image-2101\" src=\"http:\/\/141.164.34.82\/wp-content\/uploads\/2019\/12\/thebookoftheyear2019.png\" alt=\"\" width=\"1049\" height=\"1080\" \/><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>(\uac1c\uc815\ud310!)R\ub85c \ud558\ub294 \ube45\ub370\uc774\ud130 \ubd84\uc11d: \ub370\uc774\ud130 \uc804\ucc98\ub9ac\uc640 \uc2dc\uac01\ud654 \uc81c\ubaa9 : R\ub85c \ud558\ub294 \ube45\ub370\uc774\ud130 \ubd84\uc11d(\uac1c\uc815\ud310) | \ucd9c\ud310\uc0ac : \uc228\uc740\uc6d0\ub9ac \uc9c0\uc74c : \uae40\uad8c\ud604 \/ \uac00\uaca9 : 25,000\uc6d0 \/ \ud310\ud615 : 176&#215;250 \ucabd\uc218 : 344\ucabd \/ \ubc1c\ud589\uc77c : 2020\ub144 1\uc6d4 14\uc77c \/ ISBN : 979-11-960144-9-0(93000) \uc774 \ucc45\uc740 \uc5b4\ub290 \uc815\ub3c4 \ud504\ub85c\uadf8\ub798\ubc0d \uacbd\ud5d8\uc774 \uc788\ub294 \ub3c5\uc790\ub97c \ub300\uc0c1\uc73c\ub85c, \uc624\ud508 \uc18c\uc2a4 \ub370\uc774\ud130 \ubd84\uc11d \ub3c4\uad6c\uc778 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2067,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[371,187,28,30,94,1,146,165,179],"tags":[147,148,417,149,150,418],"jetpack_featured_media_url":"http:\/\/ds.sumeun.org\/wp-content\/uploads\/2019\/02\/BigData2nd_ad01.png","_links":{"self":[{"href":"http:\/\/ds.sumeun.org\/index.php?rest_route=\/wp\/v2\/posts\/2069"}],"collection":[{"href":"http:\/\/ds.sumeun.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/ds.sumeun.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/ds.sumeun.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/ds.sumeun.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2069"}],"version-history":[{"count":13,"href":"http:\/\/ds.sumeun.org\/index.php?rest_route=\/wp\/v2\/posts\/2069\/revisions"}],"predecessor-version":[{"id":2244,"href":"http:\/\/ds.sumeun.org\/index.php?rest_route=\/wp\/v2\/posts\/2069\/revisions\/2244"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/ds.sumeun.org\/index.php?rest_route=\/wp\/v2\/media\/2067"}],"wp:attachment":[{"href":"http:\/\/ds.sumeun.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2069"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/ds.sumeun.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2069"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/ds.sumeun.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2069"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}