TokyoR #110 Beginners' Session1

TokyoR #110 の初心者セッションで話した内容です。

Transcript

1. ॳ৺ऀηογϣϯ
   
   $POpHVSJOH
   3
   &OWJSPONFOU
    5PLZP3
   
   !LPUBUZBNUFNB
   
2. ࣗݾ঺հ 5XJUUFS*%
   
   
   
   
   
   
   !LPUBUZBNUFNB
   େֶͰͷઐ໳
   ߦಈੜଶֶ
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   ཱҊdั֫d࣮ݧd෼ੳ·ͰϫϯΦϖ
   ࠓ·Ͱ
   
   
   
   
   
   
   
   
   
   
   ٬ઌ΅ͬͪ෼ੳ԰ˠΞύϨϧ௨ൢձࣾ
   ݱࡏ
   
   
   
   
   
   
   
   
   
   
   
   
   
   ҩྍݕࠪձࣾ
   3ྺ
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   ೥ա͔͗ͨ΋ʁӬԕͷॳ৺ऀ
   ۙگ
   
   
   
   
   
   
   
   
   
   
   
   
   
   "84ͱ4IJOZ"QQ͔͍ͬͯ͠͡ͳ͍
   ฏԺͳ೔ʑ͕๚Ε·͢Α͏ʹʜ
   
3. ໨త 3Λ࢖͏ͨΊͷ؀ڥઃఆ͕
   Ͱ͖ΔΑ͏ʹ͢Δ
   3Λշదʹ࢖͏ઃఆ͕
   Ͱ͖ΔΑ͏ʹ͢Δ
4.  ϓϩάϥϜݴޠ
   
   *%&ͱ͸
    3
   
   34UVEJP
   ͱ͸
   ɹ
   Πϯετʔϧํ๏
    3ͷ؀ڥͱσ ΟϨΫτϦͷؔ܎
    ઈରύεͱ૬ରύε
    QSPKFDU
   ͱ͸
    σʔλίʔυͷ؅ཧͱ%JSFDUPSZͷߏ੒
    3ͷػೳ֦ு
   ɹ
   QBDLBHFͷΠϯετʔϧͱ؅ཧ
    ύοέʔδʹ͋Δσʔλͷݺͼग़͠
   .&/6
5. ϓϩάϥϜݴޠ
   
   *%&ͱ͸ ϓϩάϥϜݴޠͱ͸ɿ
   ίϯϐϡʔλʹ೚ҙͷಈ࡞Λͤ͞Δ໋ྩΛॻͨ͘Ίͷݴޠ
   &Y
   
   3
   1ZUIPO
   3VCZ
   FUD
   
   *%& ౷߹։ൃ؀ڥ ͱ͸ɿ
   ϓϩάϥϜΛ࢖ͬͯ։ൃ͕͠΍͍͢Α͏ʹ࡞ΒΕͨ؀ڥ
   &Y
   
   34UVEJP
   +VQJUFS
   /PUFCPPL
   FUD
   *%& ౷߹։ൃ؀ڥ ϓϩάϥϜݴޠ
6. 3
   
   34UVEJPͱ͸ 3ͱ͸ɿ
   ɹ౷ܭֶͷͨΊʹಛԽͨ͠ϓϩάϥϜ
   ɹˠσʔλಡΈࠐΈʙղੳʙΞϓϦ࡞੒·ͰҰ௨Γ؆୯ʹͰ͖Δ
   34UVEJPͱ͸ɿ
   ɹ1PTJU͕ࣾఏڙ͢Δ3ʹಛԽͨ͠*%& ౷߹։ൃ؀ڥ
   ɹ3NBSLEPXO΍4IJOZɺ(JUɺ%8)ͱͷ࿈ܞ͕εϜʔζʹ
   ɹίʔσ ΟϯάதͷαδΣετ΍ิ׬ػೳ͕ॆ࣮
   34UVEJP 3
7. 3
   
   34UVEJP
   ͱ͸ 3ຊମͷΠϯετʔϧɿ
   $3"/ $PNQSFIFOTJWF
   3
   "SDIJWF
   /FUXPSL
   ɾ$3"/ͱ͸ɿެࣜͷຊମٴͼύοέʔδ഑৴༻8FCαΠτ
   ɹIUUQTDSBOSQSPKFDUPSHɹ
   ɾ.BD؀ڥͷ৔߹͸IPNFCSFXͰ΋ΠϯετʔϧՄ
   ɹIPNFCSFXͷ)1 IUUQTCSFXTIJOEFY@KB
   34UVEJPͷΠϯετʔϧɿ
   ɾQPTJUࣾͷ)1͔ΒΠϯετʔϥΛμ΢ϯϩʔυ
   ɹ IUUQTQPTJUDPQSPEVDUTPQFOTPVSDFSTUVEJP
   ɾ.BD؀ڥͷ৔߹͸IPNFCSFX
   DBTLͰ΋ΠϯετʔϧՄ
   ஫ҙ఺ɿ3ຊମˠ34UVEJPͷॱʹΠϯετʔϧ͢Δ͜ͱ
   
8. 3
   
   34UVEJPͱ͸ εΫϦϓτΛॻ͘ ࣮ࢪ݁Ռͷग़ྗ ؀ڥʹ͋ΔσʔλͳͲΛදࣔ
   ˠλϒͰදࣔΛ੾Γସ͑ Πϯετʔϧ͞Εͨ
   1BDLBHFΛදࣔ
   ˠλϒͰදࣔΛ੾Γସ͑ ࠓͷQSPKFDU໊Λදࣔ 34UVEJPͷΠϝʔδ
   
9. 34UVEJP
   4FSWFS άϧʔϓͰ࢖͏ղੳ؀ڥΛ࡞Γ͍ͨ৔߹
   34UVEJP
   4FSWFS
   ɾ-JOVYܥͷ04Λ࢖ͬͨαʔόʹߏங͠ɺෳ਺ਓͰར༻Ͱ͖Δղੳ ؀ڥ
   ˠղੳऀ͕؀ڥߏங͠ͳͯ͘ྑ͍
   ˠαʔόͷεϖοΫʹΑͬͯ͸ϩʔΧϧ1$ΑΓύϫϑϧ
   ˠωοτ͑͞௨͍ͯ͡Ε͹ɺجຊతʹͲ͔͜ΒͰ΋ղੳͰ͖Δ
   34UVEJP
   4FSWFSͷߏஙɿ
   ɾ34UVEJPͷ)1͔Βαʔόͷ04ʹ߹ΘͤͨΠϯετʔϥΛμ΢ϯ ϩʔυ IUUQTQPTJUDPEPXOMPBESTUVEJPTFSWFS
   ɾ3 SCBTF ͷΠϯετʔϧ
   ɾ34UVEJP
   TFSWFSͷΠϯετʔϧ
   
10. 3ͷ؀ڥͱσΟϨΫτϦͷؔ܎ 1$ϝϞϦͷҰ෦ΛUFNQPSBSZͳϝϞϦͱͯ͠࢖༻
    ˠ3Λऴྃ͢Δͱফ͑Δ
    ˠ3Ͱ࣮ߦͨ݁͠ՌΛ3ऴྃޙ΋อ؅͢Δʹ͸SET΍DTWͳͲͷ
    ɹ1$্ͷΦϒδΣΫτͱͯ͠อଘ͓ͯ͘͜͠ͱ͕ඞཁ
    ΦϒδΣΫτͷอଘઌʹ೚ҙͷσΟϨΫτϦΛ
    ࡞ۀ༻σ ΟϨΫτϦ 8PSLJOH
    %JSFDUPSZ8% ͱͯ͠ඥ෇͚
    ˠ8%͕εΫϦϓτϑΝΠϧͷอଘ΍σʔλͷ૬ରύεͷى఺
    ˠݱࡏͷ8%͸zHFUXE zͰ֬ೝ
    
11. 3؀ڥͱ8%ͷؔ܎ͷΠϝʔδ
    3ͷ؀ڥͱσΟϨΫτϦͷؔ܎ 3؀ڥ 1$؀ڥ εΫϦϓτϑΝΠϧ΍
    σʔλͳͲͷ΍ΓऔΓ ೚ҙͷσΟϨΫτϦʢ8%ʣͱ
    ؔ࿈෇͚
    8PSLJOH
    %JSFDUPSZ8%
    ˠ૬ରύεͷى఺
12. ύεͱ͸ɿ
    ໨తͷϑΥϧμϑΝΠϧͷอଘ৔ॴΛࣔ͢ॅॴͷΑ͏ͳ΋ͷ
    ઈରύεͱ͸ɿ
    ϧʔτσ ΟϨΫτϦ $΍% ͔Βهड़ͨ͠ύε
    ૬ରύεͱ͸ɿ
    8PSLJOH
    %JSFDUPSZ 8% Λى఺ʹهड़ͨ͠ύε
    ˠ8%ΑΓઌͷύεΛॻ͖ɺͦͷલʹzzΛ͚ͭΔ
    ྫɿ೔ຊࠃɹ˘˘ݝɹʓʓࢢɹººொɹɾɾɾ
    ྫɿ$ !!!!ʝʝ3NE ྫɿʓʓࢢɹººொɹɾɾɾ
    ྫɿʝʝ3NE ઈରύεͱ૬ରύε
13. QSPKFDU
    ͱ͸ 3ͷQSPKFDUͱ͸ɿ
    σ ΟϨΫτϦͱͷඥ෇͚ʢ8%ʣɺ3؀ڥͳͲΛ·ͱΊΔ࢓૊Έ
    ˠQSPKFDUΛઃఆ͢Δ͜ͱͰղੳ؀ڥͷ੾Γସ͕͑༰қʹ
    ˠෳ਺ͷղੳΛಉ࣌ʹ࣮ߦ͍ͯ͠Δͱඇৗʹศར
    ˠ(JUͱͷ࿈ܞ͕εϜʔζʹ
    3؀ڥ 1$؀ڥ QSPKFDU QSPKFDU
14. QSPKFDUͷઃఆํ๏ ৽͍͠ϑΥϧμΛ࡞ͬͯ8%ʹ͢Δ ࠓ͋ΔϑΥϧμΛ8%ʹ͢Δ ӈ্ʹ͋Δ1SPKFDUΛΫϦοΫ
    ˠ/FX
    1SPKFDUΛબ୒ (JUIVC͔ΒΫϩʔϯͯ͘͠Δ
    ˎࠓճͷର৅֎
15. QSPKFDUͷઃఆํ๏ ৽͍͠ϑΥϧμΛ࡞ͬͯ8%ʹ͢Δ ࠓ͋ΔϑΥϧμΛ8%ʹ͢Δ 8%ʹ͢ΔϑΥϧμΛબ୒ 8%ͷ໊લ QSPKFDU໊ 8%Λஔ͘ϑΥϧμΛબ୒ ✔ ✔ QSPKFDUͰࢦఆͨ͠8%ʹ
    <QSPKFDU໊3QSPK>ͱ͍͏
    ϑΝΠϧ͕Ͱ͖͍ͯΕ͹
    ઃఆ׬ྃ
16. σʔλίʔυͷ؅ཧͱ%JSFDUPSZͷߏ੒ QSPKFDUͷσ ΟϨΫτϦͷதΛͲ͏ߏங͢Δ͔
    ˠσʔλ΍ίʔυͷ؅ཧͷ͠΍͢͞ͱ
    ɹσΟϨΫτϦͷߏ੒͸΄΅Πίʔϧ
    ˠϓϩδΣΫτͷछྨ͝ͱʹɺܾ·ͬͨߏ੒ʹ͢Δ
     Կ͕Ͳ͜ʹ͋Δͷ͔ଞͷϝϯόʔ΍কདྷͷࣗ෼ʹ෼͔Γ΍ ͘͢͢Δ
     ܾ·ͬͨܗΛ४උ͓ͯ͘͠ͱ୳ͨ͠Γ೰Ή͜ͱ͕ݮΔ
    ࢀরɿ
    IUUQTTXDBSQFOUSZKBHJUIVCJPSOPWJDFHBQNJOEFSKB@FQJTPEFTQSPKFDU JOUSPJOEFYIUNM
    
    IUUQTRJJUBDPN4IVOUBSP@4BUPJUFNTEEEG
    
17. σʔλίʔυͷ؅ཧͱ%JSFDUPSZͷߏ੒ QSPKFDU SBXEBUBDTW NBTUFSDTW UFTU3 UFTU3 ຊ൪3 ຊ൪3 ຊ൪3 QSPKFDU JOQVU EBUB NBTUFS NJEEMF PVUQVU GVODUJPO 3' HMN 3' HMN ݟ΍͘͢෼͔Γ΍͍͢ߏ଄ͱ໊લʹ IUUQTXXXPSFJMMZDPKQCPPLT
18. EJSFDUPSZpMF؅ཧͷؔ਺ ؔ਺໊ ಈ࡞ HFUXE ݱࡏͷσΟϨΫτϦͷύεΛऔಘ TFUXE lQBUIz σΟϨΫτϦͷҠಈ EJSDSFBUF lQBUIOBNFz
    SFDVSTJWF σΟϨΫτϦͷ࡞੒ MJTUpMFT lQBUIz
    SFDVSTJWF
    GVMMOBNF σΟϨΫτϦ಺ͷϑΝΠϧύεͷऔಘ pMFSFNPWF lQBUIOBNFz ϑΝΠϧͷ࡟আ pMFSFOBNF GSPN
    UP ϑΝΠϧ໊ͷมߋ SFDVSTJWF536&'"-4&ɺ֊૚ߏ଄Λऔಘ͢Δ͔Ͳ͏͔
    GVMMOBNF536&'"-4&ɺઈରύεͰऔಘ͢Δ͔Ͳ͏͔ ࢀরɿ
    IUUQTXXXLBSBEBHPPEOFUBOBMZUJDTSS
    
    IUUQTRJJUBDPNPLJZVLJJUFNTFCFFCGD
    
19. 3ͷػೳ֦ு 3ͷػೳΛ֦ு͢ΔͨΊͷϓϩάϥϜɿQBDLBHF
    lQBDLBHFzΛ௥Ճ͢Δ͜ͱͰ؆୯ʹػೳ֦ு͕Ͱ͖Δ
     ੈքதͰ։ൃ͞Ε͍ͯͯศརͳख๏͕͙͢࢖͑Δ
     σϞ࣮ߦͷͨΊͷαϯϓϧσʔλ΋࢖͑Δ
    3ެࣜͷQBDLBHFू
     $3"/
     IUUQTDSBOJTNBDKQ
    HJUIVCʹެ։͞Ε͍ͯΔݸਓ࡞੒QBDLBHF
     ͪ͜Β͸ࣗݾ੹೚Ͱ
    
20. QBDLBHFͷ௥Ճ QBDLBHFͷ௥Ճํ๏
     34UVEJPͷ1BDLBHFTλϒΛ࢖͏
     3FQPTJUPSZ $3"/ ʹνΣοΫ
     Πϯετʔϧ͍ͨ͠QBDLBHF໊Λೖྗ
     JOTUBMMΛԡ͢
    νΣοΫΛ
    ֎͞ͳ͍͜ͱ
21. QBDLBHFͷ௥Ճ QBDLBHFͷ௥Ճํ๏
     JOTUBMMQBDLBHFؔ਺Λࣗ෼Ͱॻ͘
     ෳ਺Πϯετʔϧ͢Δ࣌͸D ͰғΉ
     ґଘQBDLBHFͷ͏ͪ4VHHFTUT·ͰΠϯετʔϧ͢Δ࣌͸
    
    lEFQFOEFODJTF
    
    536&zΛ௥Ճ
    &YBNQMF
    JOTUBMMQBLDBHFT D lSFBESz
    lEBUBUBCMFz
    
    
    
    
    
    
    
    
    
    
    EFQFOEFODJFT
    
    536&
    ࢀর
    IUUQTTUBUTCJPQBQZSVTKQSCBTJDQBDLBHFIUNM
    
22. QBDLBHFͷݺͼग़͠ ࢖͏࣌ʹ͸
    lMJCSBSZ z
    PS
    lSFRVJSF zͰ؀ڥʹݺͼग़͔͢
    QBDLBHFGVODJPOͰ࢖͏
    
    MJCSBSZ EQMZS
    
    PS
    SFRVJSF EQMZS
    
    EQMZSTFMFDU
    ɾԿ͕ҧ͏͔ʁ
    MJCSBSZ͸؀ڥʹΞλον͍ͯ͠Δ͕
    
    Ͱ͸Ξλον͍ͯ͠ͳ͍
    ˠෳ਺ͷQBDLBHFΛΞλονͨ࣌͠ʹؔ਺໊͕͔ͿΔͱલʹΞ λονͨ͠QBDLBHFͷؔ਺ΛϚεΫͯ͠͠·͏
    ˠ໊લ͕͔ͿΔ
    PS
    ͲͷQBDLBHFͷؔ਺͔໌֬ʹ͓͖͍ͯͨ͠ ৔߹͸
    
    Ͱؔ਺Λݺͼग़͢ํ๏͕༗ޮ
    ࢀর
    IUUQXIBOMZ[OFXTDPN3FOWJSPONFOUTIUNM
    IUUQTOPUDIBJOFEIBUFOBCMPHDPNFOUSZɹ
    
23. QBMNFSQFOHVJOTύοέʔδ͔ΒlQFOHVJOTzσʔλΛݺͼग़͢
    IUUQTBMMJTPOIPSTUHJUIVCJPQBMNFSQFOHVJOT
    
    ## packageͷΠϯετʔϧ install.packages(palmerpenguins, dependencies = TRUE)) ## packageͷݺͼग़͠ library(palmerpenguins) ύοέʔδʹ͋Δσʔλͷݺͼग़͠ "SUXPSL
    CZ
    !BMMJTPO@IPSTU
24. QSPKFDU΍QBDLBHFͳͲղੳ؀ڥΛշదʹ͢Δํ๏͕
    ͍Ζ͍Ζ͋Γ·͢ɻ
    ࣗ෼ͳΓͷӡ༻ํ๏ͱ؀ڥઃఆΛ͏·͘૊Έ߹Θͤ ͯշదͳ3ੜ׆Λա͍ͯͩ͘͝͠͞ɻ
    3ͷ࢖͍ํʹࠔͬͨΒʜ
     IFMQ Λ࢖͏
     $3"/ͷެࣜQEGΛಡΉ
     SXBLBMBOHʹ࣭໰͢Δ
     HPPHMFઌੜͷ͓ੈ࿩ʹͳΔ
    ࠷ޙʹ &/+0: