Rubyでデータ分析が出来る見ら

by hatappi

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3VCZͰσʔλ෼ੳ͕ ग़དྷΔະདྷ ܰྔ3VCZීٴɾ࣮༻ԽଅਐϑΥʔϥϜ CZാத༔࡞

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ࣗݾ঺հ w ാத༔࡞ w IBUBQQJIBUBQQJ w גࣜձࣾ4QFFF w ܰྔ3VCZྺ͸.*UBNBF

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ࣗݾ঺հ w ാத༔࡞ w 5XJUUFSɺ(JUIVCIBUBQQJ  ͸ͯͳϒϩάIBUBQQJ w גࣜձࣾ4QFFF w σδλϧίϯαϧςΟϯάࣄۀຊ෦  ΞυςΫࣄۀ෦6;06ࣄۀ w 6;06ࣄۀΤϯδχΞ

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3VCZ͸޷͖Ͱ͔͢ʁ

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ܰྔ3VCZͰूΊͨϏοΫσʔλ  ͲͷΑ͏ʹ෼ੳ͞Εͯ·͔͢ʁ

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ϏοΫσʔλʹ͍ͭͯ w σʔλྔ͕ଟ͍ w ٸ଎ʹ૿͑Δ w ݩͱͳΔσʔλͷछྨ͕༷ʑ

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ϏοΫσʔλͷ෼ੳ͕ग़དྷΔͱ w Φεεϝ঎඼ΛϨίϝϯυ͢Δ͜ͱ͕ग़དྷΔ w ిࢠػثྨͷଌఆ͞Εͨσʔλ͔Βܽؕ඼Λ୳͢͜ ͱ͕ग़དྷΔ w Ϩϯτήϯͷ݁Ռ͔ΒજࡏతͳපؾΛݟ͚ͭΔ͜ͱ ͕ग़དྷΔ

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3VCZͰσʔλ෼ੳ͕ग़དྷΔΑ ͏ʹͳΔͱྑ͍ͱࢥ͍·ͤΜ͔

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σʔλ෼ੳʹ͍ͭͯ σʔλநग़ σʔλूܭ σʔλߏங ՄࢹԽ

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σʔλ෼ੳʹ͍ͭͯ w 1BOEBT1ZUIPO੡ͷσʔλ෼ੳ༻ϥΠϒϥϦ w $BTTBOESB෼ࢄσʔλϕʔε؅ཧγεςϜ w 4QBSLߴ଎Ͱεέʔϥϒϧͳ൚༻෼ࢄॲཧΤϯδ ϯ w )#BTFྻࢦ޲ɺ෼ࢄσʔλϕʔε σʔλ෼ੳʹ͸ෳ਺ͷγεςϜΛซ༻ͯ͠ ࢖༻͢Δέʔε͕ଟ͍

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γεςϜؒͷσʔλ࿈ܞ ͦΕͧΕͷγεςϜͰ͸ಠࣗͷϝϞϦߏ଄Λ΋͓ͬͯ Γσʔλަ׵Λߦ͏ࡍʹ$47ͳͲͷϑΝΠϧ΍ 1BSRVFUͱݺ͹ΕΔσΟεΫ্Ͱྻࢦ޲ͰσʔλΛѻ ͏ϑΥʔϚοτΛ࢖͏ͳͲͯ͠࿈ܞ͞Ε͍ͯΔ γεςϜ" γεςϜ#

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ແࢹͷग़དྷͳ͍ σʔλަ׵ίετ

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"QBDIF"SSPX w IUUQTBSSPXBQBDIFPSH w ೥ͷ݄ʹ͕ϦϦʔε w ϝϞϦ্ͰΧϥϜܕσʔλΛѻ͏ͨΊͷϑΥʔϚο τͱΞϧΰϦζϜ w "QBDIF4PGUXBSF'PVOEBUJPOͷτοϓϨϕϧϓ ϩδΣΫτ

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ϩʔܕͱΧϥϜܕ *% ঎඼໊ Ձ֨ ൃച೔ ϖϯ ফ͠ΰϜ ఆن ϩʔܕ  ߦͰσʔλΛ؅ཧ ΧϥϜܕ ྻͰσʔλΛ؅ཧ *% ঎඼໊ Ձ֨ ൃച೔ ϖϯ ফ͠ΰϜ ఆن w ΧϥϜܕ͸ྻ୯ҐͰσʔλΛ֨ೲ͢Δ͜ͱͰ֨ೲ͞Εͨσʔλ ͸ಉ͡ܕͷͨΊѹॖޮ཰͕ྑ͍ w ྻͰूܭΛ͍ͨ͠৔߹ͳͲʹଞͷྻΛࢀর͠ͳ͍ͷͰϩʔܕΑ Γ΋༨෼ͳσʔλΛࢀর͠ͳ͍ͨΊૣ͍

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"QBDIF"SSPXͷಛ௃ w 'BTU w 'MFYJCMF w 4UBOEBSE

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"QBDIF"SSPXͷಛ௃ w 'BTU w 'MFYJCMF w 4UBOEBSE

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'BTU w ࠷৽ͷϓϩηοαʹؚ·ΕΔ4*.% 4JOHMF *OTUSVDUJPO.VMUJQMF%BUB Λ࢖༻͢Δ͜ͱ͕ग़དྷ Δ w ΧϥϜܕͷσʔλΛѻ͑Δ͜ͱͰ$16Ωϟογϡ Λޮ཰Α͘࢖༻͢Δ͜ͱ͕ग़དྷΔ w ίϐʔͳ͠ͰσʔλΛಡΈࠐΉ;FSP$PQZΛαϙʔ τ

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"QBDIF"SSPXͷಛ௃ w 'BTU w 'MFYJCMF w 4UBOEBSE

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'MFYJCMF w +BWB $ $ 1ZUIPOͳͲ֤छݴޠ͔Βѻ͏͜ͱ ͕ग़དྷΔͷ"SSPXରԠͨ͠γεςϜΛॊೈʹѻ͏͜ ͱ͕ग़དྷΔ w ଞͷݴޠʹؔͯ͠΋ରԠ͸ਐΊΒΕ͍ͯΔ

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"QBDIF"SSPXͷಛ௃ w 'BTU w 'MFYJCMF w 4UBOEBSE

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4UBOEBSE w $BMDJUF $BTTBOESB %SJMM )BEPPQ )#BTF *CJT *NQBMB ,VEV 1BOEBT 1BSRVFU 1IPFOJY 4QBSL 4UPSNͷͷϏοΫσʔλؔ࿈ϓϩδΣΫ τͷ։ൃऀ͕ࢀՃ w "QBDIF*ODVCBUPS͕লུ͞Εͨ"QBDIF4PGUXBSF 'PVOEBUJPOͷτοϓϨϕϧϓϩδΣΫτ

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"QBDIF"SSPX͕ͳ͍࣌

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"QBDIF"SSPX͕͋Δ࣌

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"QBDIF"SSPXʹରԠ͢Δ͜ͱͰඞཁͳ෦෼͔Β 3VCZΛ࢖ͬͨσʔλ෼ੳΛ͸͡ΊΔ͜ͱ͕ग़དྷΔ w 3VCZͰूΊͨσʔλΛ"SSPXʹରԠ͍ͯ͠Δ 1BOEBT΍4QBSLʹ࿈ܞ͠෼ੳͨ݁͠ՌΛ3VCZͰ ड͚औͬͯ3BJMTΛ࢖ͬͨXFCΞϓϦͰՄࢹԽ w 1BOEBT΍4QBSL෦෼Λঃʑʹ3VCZ΁Ҡߦ͢Δ͜ ͱ΋ग़དྷΔ 3VCZ͕ରԠ͢Ε͹ʁʂ ྫ

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Πϝʔδ

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3VCZ͔Β"QBDIF"SSPX Λ࢖͏͜ͱ͕ग़དྷΔͷ͔

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લ೔ʹ13Λग़ͯ͠Ϛʔδ

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SFEEBUBUPPMTSFEBSSPX

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3VCZ΋σʔλ෼ੳͷ஥ؒೖΓ

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"QBDIF"SSPXΛମݧ

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ݕূ಺༰ w 1ZUIPOͰ໿(ͷσʔλΛ$47 "QBDIF"SSPXͰ ॻ͖ࠐΈ3VCZͰͦΕͧΕΛಡΈࠐΉ w ֤ϑΥʔϚοτʹ͓͚Δॻ͖ࠐΈͱಡΈࠐΈͷ࣌ؒ Λܭଌͯ͠ൺֱΛߦ͏

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ݕূ؀ڥ w "84ͷ&$ΠϯελϯεͷUMBSHF w W$16 ϝϞϦ( w 6CVOUV-54 w 1ZUIPO w 3VCZ w "QBDIF"SSPX

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$47 ॻ͖ࠐΈ

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$47 ಡΈࠐΈ

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"QBDIF"SSPX ॻ͖ࠐΈ

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"QBDIF"SSPX ಡΈࠐΈ

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%&.0

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݁Ռ ॻ͖ࠐΈ ඵ ಡΈࠐΈ ඵ $47 "QBDIF"SSPX ˞(ͷσʔλΛͦΕͧΕճܭଌͨ͠ฏۉΛهࡌ IUUQIBUBQQJIBUFCMPKQFOUSZ

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3FE%BUB5PPMT

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3FE%BUB5PPMT w גࣜձࣾΫϦΞίʔυͷਢ౻͞Μ͕೥݄ʹ ϓϩδΣΫτΛઃཱ w 3VCZ༻ͷσʔλॲཧπʔϧΛఏڙ͢Δ͜ͱΛ໨త ͱͨ͠ϓϩδΣΫτ w ଟ͘ͷݴޠ͕ڞ௨ͯ͠࢖༻Ͱ͖Δ"QBDIF"SSPXΛ ࢖༻͢Δ͜ͱͰ3VCZίϛϡχςΟʔΛ௒͑ͯڠྗ ͢Δ

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׆ಈ಺༰

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׆ಈ಺༰ w 3FE"SSPX w طଘHFNͷ"SSPXԽ w ৽͍͠πʔϧΛఏڙ

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׆ಈ಺༰ w 3FE"SSPX w طଘHFNͷ"SSPXԽ w ৽͍͠πʔϧΛఏڙ

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3FE"SSPX w "QBDIF"SSPXͷ3VCZόΠϯσΟϯά w 3VCZόΠϯσΟϯάͷ։ൃ͚ͩͰͳ͘"QBDIF "SSPXຊମͷ։ൃ΋ߦ͍ͬͯΔ

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׆ಈ಺༰ w 3FE"SSPX w طଘHFNͷ"SSPXԽ w ৽͍͠πʔϧΛఏڙ

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4DJ3VCZ w Պֶٕज़ܭࢉɺσʔλՄࢹԽ༻్ͷ(FN܈ͷ૯শ w 1ZUIPOͰ͍͏QBOEBTʹ͋ͨΔEBSV΍OVNQZʹ͋ ͨΔOVNPOBSSZͳͲ͕͋Δ w (FN͕ؒಠཱ͍ͯͯ͠࿈ܞ  ͕೉͍͠

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1Z$BMM w !NSLO͞Μ͕࡞੒͞Εͯ ͍Δ3VCZͱ1ZUIPOͷϒϦο δϥΠϒϥϦ w 1ZUIPOͰ࡞੒͞Εͨطଘ ͷࢿ࢈Λ࢖͏͜ͱ͕ग़དྷΔ ͷͰ3VCZͰ1ZUIPOͷΦϒ δΣΫτΛ࢖༻͢Δ͜ͱ͕ ग़དྷΔ

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طଘHFNͷ"SSPXԽ 4DJ3VCZ 1Z$BMM "QBDIF"SSPXʹରԠͤ͞Δ͜ͱͰ طଘͷHFNΛ࢖༻ͯ͠σʔλ෼ੳΛ͸͡ΊΒΕΔ

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׆ಈ಺༰ w 3FE"SSPX w طଘHFNͷ"SSPXԽ w ৽͍͠πʔϧΛఏڙ

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৽͍͠πʔϧΛఏڙ w SFEEBUBUPPMTYUFOTPSBSSPXHMJC w YUFOTPSͱݺ͹ΕΔ$Ͱ࣮૷͞Εͨଟ࣍ݩ഑ྻ Λѻ͏ϥΠϒϥϦͷ"QBDF"SSPXରԠ w SFEEBUBUPPMTSFEDIBJOFS w 1ZUIPO੡ͷਂ૚ֶशϑϨʔϜϫʔΫͷ$IBJOFS Λ3VCZ΁ϙʔςΟϯάͨ͠΋ͷ

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$IBJOFSͱ͸ w גࣜձࣾ1SFGFSSFE/FUXPSLT 1'* ͕։ൃͨ͠ਂ૚ֶशϑ ϨʔϜϫʔΫ w ࠃ಺࢈ w 1ZUIPO੡Ͱॊೈੑɺ௚ײతɺߴػೳͱ͍ͬͨͭͷಛ௃Λ ΋͍ͬͯΔ w Πϯετʔϧָ͕QJQJOTUBMMDIBJOFS w (16΋ରԠͯ͠Δ  IUUQIBUBQQJIBUFCMPKQFOUSZ

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SFEEBUBUPPMTSFEDIBJOFS w $IBJOFSͷΫϥε΍ύϥϝʔλͷ࣋ͪํΛࢀߟʹ3VCZͰॻ ͘͜ͱͰ͔Β࡞ΔΑΓ΋εϜʔζʹ࡞੒͢Δ͜ͱ͕ग़དྷΔ w $IBJOFSຊମ΁ͷϑΟʔυόοΫ΋͍ͯ͘͠ w "QBDIF"SSPXʹରԠͨ͠/VNP/"SSBZΛ࢖༻͢Δ͜ͱ Ͱ"QBDIF"SSPXʹରԠͨ͠ਂ૚ֶशϑϨʔϜϫʔΫΛ࣮ݱ ͢Δ͜ͱ͕ग़དྷΔ 3FE $IBJOFS

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.VMUJ-BZFS1FSDFQUSPO .-1 w ύʔηϓτϩϯ͸ෳ਺ͷ৴߸ Λड͚औΓɺͻͱͭͷ৴߸Λ ग़ྗ͢Δ  w ύʔηϓτϩϯ͸͍ͭ͘΋ॏ ͶΔ͜ͱ͕ग़དྷΔɻ͜ΕΛଟ ૚ύʔηϓτϩϯͱ͍͏

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3FE$IBJOFSͷ.-1࣮૷

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3FE%BUB5PPMTͷࠓޙ w Ҿ͖ଓ͖طଘͷHFNͷ"BQDIF"SSPX΁ͷରԠ͸ߦ ͏ w SFEDIBJOFSͷΑ͏ͳ৽͍͠πʔϧͷ࡞੒ 3VCZؒͰσʔλ෼ੳ͕ ग़དྷΔΑ͏ʹͳΓ͍ͨ

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3FE%BUB5PPMTͷࠓޙ w "QBDIF"SSPXຊମͷ։ൃͷ௥ै w 3VCZόΠϯσΟϯάͷ࡞੒ 3VCZ͚ؒͩͰͳ͘ݴޠ΋௒͑ͯڠྗͯ͠ σʔλ෼ੳ͕ग़དྷΔΑ͏ʹͳΓ͍ͨ

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·ͱΊ w ܰྔ3VCZͰूΊͨσʔλΛ3VCZͰ෼ੳ͕ग़དྷΔ Α͏ʹͳΕ͹3VCZ͚ͩͰ׬݁͢Δ͜ͱ͕ग़དྷΔ w "QBDIF"SSPXʹରԠ͢Δ͜ͱͰඞཁͳ෦෼͔Β 3VCZͰσʔλ෼ੳΛ͸͡ΊΔ͜ͱ͕ग़དྷΔ w 3VCZͰ΋σʔλ෼ੳ͕ग़དྷΔະདྷ΁ʂ