[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_9":-5,"_91":-5,"_92":93,"_94":95,"_96":97,"_98":99,"_100":101,"_102":103,"_104":12,"_105":106,"_107":108,"_109":110},"routes/_store+/_readers+/u.$username/route",{"_9":10,"_11":12},"user",{"_13":14,"_15":16,"_17":18,"_19":16,"_20":16,"_21":16,"_22":16,"_23":16,"_24":16,"_25":16,"_26":16,"_27":-5,"_28":-5,"_29":-5,"_30":31,"_32":33,"_34":12,"_35":36,"_37":38,"_39":40,"_41":42,"_43":44,"_45":46,"_47":48,"_49":50,"_51":52,"_53":54,"_55":56,"_57":58,"_59":60,"_61":62,"_63":64,"_65":66,"_67":68,"_69":-5},"isPreview",false,"name","Roger W Johnson","githubname","","username","rwjohnson","instagramname","linkedinname","profileBlurbWithNofollow","twittername","youtubeUrl","facebookUrl","youtubeName","mastodonName","tiktokName","blueskyName","redditName","profileLaunchVideos",[],"publicProfile",true,"mediaSheetAvailable","reviewDisplayPreference","none","profileReviews",[],"avatarX512",{"_83":90},"avatarX1024",{"_83":90},"publishedBooks",[70,71],"unpublishedBooks",[],"retiredBooks",[],"publishedCourses",[],"unpublishedCourses",[],"retiredCourses",[],"publishedBundles",[],"publishedTranslations",[],"unpublishedBundles",[],"retiredBundles",[],"publishedTracks",[],"unpublishedTracks",[],"retiredTracks",[],"latestPodcastEpisode",{"_72":85,"_74":86,"_76":87,"_78":79,"_80":14,"_81":88},{"_72":73,"_74":75,"_76":77,"_78":79,"_80":14,"_81":82},"id","Z2lkOi8vbGVhbnB1Yi9TdG9yZTo6Qm9va1Byb2R1Y3QvNTEwNTg","slug","leastsquaresregressionthebasicsusingr2ndedition","title","Least Squares & Regression: The Basics Using R (2nd Edition)","publisherSlug","leanpub","authorString","coverHero2x",{"_83":84},"url","https://d2sofvawe08yqg.cloudfront.net/leastsquaresregressionthebasicsusingr2ndedition/s_hero2x?1650393965&1650393965","Z2lkOi8vbGVhbnB1Yi9TdG9yZTo6Qm9va1Byb2R1Y3QvNjg1OTg","Data_Analysis_with_R","Data Analysis with R",{"_83":89},"https://d2sofvawe08yqg.cloudfront.net/Data_Analysis_with_R/s_hero2x?1764713518&1764713518","https://d39qdlcrvnra4b.cloudfront.net/avatars/2086204/original/Roger_Twins_Sept_2019.jpg?1597098880","shoppingCartId","shoppingCart",{"_72":123,"_124":125,"_126":33,"_127":16,"_128":129,"_130":131,"_132":33},"locale","en","readerTheme","light","constants",{"_121":122},"publishers",{"_117":118,"_119":120},"learnerOrganizations",[],"needsLocaleCookieSync","announcements",{"_111":112,"_113":-5},"sentryEnvironment","production","sentryRelease","e22b65bc3aa4916cc207393636d56c9615cd02a8","announcement_store",{"_114":12,"_115":116},"announcement_authors","flag","text","

Kick off your book project, get started with GhostAI, get better at marketing, or spend the day doing all three! Free live workshops on Zoom. Saturday, June 27, 2026.

\n","companies",[],"universities",[],"paypalClientId","AX53Cwz8jR6rVVzzZiZNWWXl0dGagi-GZrjG-S3Ua14E5nrKMn7DxDQ730O4R8LusLPp49ALn6aRVaEy","no-cart","count",0,"free","updatedAt","paymentGateway","STRIPE","cartItems",[],"loading"]

Roger W Johnson

Books by Roger W Johnson

Find your next book on Leanpub.