SaaS アナリティクス・シリーズ - 生存分析のためのデータの作り方 Part 2

EXPLORATORY
ΦϯϥΠϯɾηϛφʔ #57
SaaS ΞφϦςΟΫε #14
ੜଘ෼ੳͷͨΊͷσʔλͷ࡞Γํ Part 2

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ΞδΣϯμ
1. ੜଘ෼ੳͷ঺հ
2. ࢧ෷͍σʔλ͔ΒνϟʔϯΛಛఆ͠ɺੜଘ෼ੳͷͨΊͷσʔλΛ࡞Δ
3. WebαʔϏεͷར༻ϩά͔ΒνϟʔϯΛਪఆ͠ɺੜଘ෼ੳͷͨΊͷ
σʔλΛ࡞Δ

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3
ࢧ෷͍σʔλ͔ΒνϟʔϯΛಛఆͨ͠Βɺੜଘ෼ੳ͕
Ͱ͖Δɻ
ͨͩ͠ɺʮࢧ෷͍ʯͱ͍͏νϟʔϯͷಛఆʹ໾ཱͭΠ
ϕϯτΛ࣋ͨͳ͍Ϗδωεܗଶ΋͋Δɻ

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4

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5
Facebook͸޿ࠂܕͷϏδωεͱͳΓɺΑ͘ଟ͘ͷਓʹɺΑΓ௕͍ؒαʔϏεΛར
༻ͯ͠ཉ͍͠ɻ

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6
Ϣʔβʔͷʮࢧ෷͍ʯ͕ൃੜ͠ͳ͍ϏδωεͰ΋ɺੜ
ଘ෼ੳΛߦ͍ɺͲΕ͚ͩͷϢʔβʔΛϦςϯγϣϯͰ
͖͍ͯΔͷ͔Λཧղ͍ͨ͠ɻ

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7
αʔϏεͷར༻σʔλʢΞΫηεϩάͳͲʣΛར༻͢
Ε͹ɺνϟʔϯΛਪఆͯ͠ੜଘ෼ੳ͕Ͱ͖Δɻ

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νϟʔϯͷਪఆํ๏
8
1. ࠷ޙͷར༻೔͔Βͷܦա࣌ؒͰνϟʔϯΛਪఆ͢Δ
2. Ϣʔβʔ͝ͱͷར༻ִ͔ؒΒνϟʔϯΛਪఆ͢Δ

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9

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ҎԼͷλΠϛϯάͰαʔϏεΛར༻͍ͯ͠ΔϢʔβʔΛྫʹߟ͑ͯΈΔɻ
10
2/11 2/18 3/10 3/27
࠷ޙͷར༻

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2/11 2/18 3/10 3/27
࠷ޙͷར༻
11
6/3
ࠓ೔
͜ͷϢʔβʔ͸ɺ࠷ޙͷར༻͔Β2ϲ݄Ҏ্͕ܦա͓ͯ͠ΓɺαʔϏε
ͷར༻ΛࣙΊ͍ͯΔՄೳੑ͕ߴ͍ɻ
68೔ؒ

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12
6/3
ࠓ೔
30೔Ҏ಺
αʔϏεΛܧଓతʹར༻͍ͯ͠ΔϢʔβʔͰ͋Ε͹ɺ1ϲ݄ʹ1౓͸αʔϏεΛར༻
͢Δ΋ͷͱԾఆͯ͠ɺ࠷ޙͷར༻͔Β30೔Ҏ্͕ܦա͍ͯ͠ΔϢʔβʔ͸νϟʔϯ
ͨ͠΋ͷͱͯ͠ਪఆͰ͖Δɻ
5/3
2/11 2/18 3/10 3/27
࠷ޙͷར༻ 30೔લ

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13
6/3
ࠓ೔
࠷ޙͷར༻
5/17
Ծʹ5/17ʹ࠷ޙͷར༻͕͋ͬͨϢʔβʔ͸ɺ30೔લΑΓ΋ޙʹɺαʔϏ
εΛར༻͍ͯ͠ΔͨΊɺνϟʔϯ͍ͯ͠ͳ͍Ϣʔβʔͱͯ͠ਪఆͰ͖Δɻ
30೔Ҏ಺
5/3
2/11 2/18 3/10 4/10
30೔લ

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14
νϟʔϯͷ൑ఆ
࠷ޙͷར༻೔ <= (ࠓ೔ͷ೔෇ − 30೔)
6/3
ࠓ೔
30೔Ҏ಺
5/3
2/11 2/18 3/10 3/27

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15
νϟʔϯͷ൑ఆ
࠷ޙͷར༻೔ <= (today() − days(30))
6/3
ࠓ೔
30೔Ҏ಺
5/3
2/11 2/18 3/10 3/27

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16
ࠓճ࢖͏αϯϓϧσʔλ
ΞΫηεϩά

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17
1ߦ͕1ΞΫηεΛද͍ͯ͠Δɻ
ࠃͷ৘ใ
ސ٬ID
ΞΫηε೔࣌ ར༻OS

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1ߦ͕1ϢʔβʔʹͳΔΑ͏ʹɺ࠷ॳͱ࠷ޙͷར༻೔Λूܭ͢Δɻ
18

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19
useridͷྻϔομϝχϡʔ͔ΒूܭʢsummarizeʣΛબ୒͢Δɻ

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20
ΞΫηε೔࣌Λ஋ʹબ୒͠ɺूܭؔ਺ʹ࠷ॳͷ೔ʢminʣΛબ୒͠ɺ࠷
ॳͷར༻λΠϛϯάΛूܭ͢Δɻ

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21
ΞΫηε೔࣌Λ஋ʹબ୒͠ɺूܭؔ਺ʹ࠷ॳͷ೔ʢminʣΛબ୒͠ɺ࠷
ॳͷར༻λΠϛϯάΛूܭ͢Δɻ

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22
ྻ໊Λ෼͔Γ΍͍͢ྻ໊ʹมߋ͢Δɻ

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23
࠷ॳͷར༻λΠϛϯάͱ࠷ޙͷར༻λΠϛϯάΛूܭͰ͖ͨɻ

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ࠓ೔ͷ೔෇ͱ࠷ޙͷར༻೔Λ΋ͱʹɺ30೔Ҏ಺ʹར༻͕͔͋ͬͨΛܭ
ࢉͯ͠ɺνϟʔϯΛਪఆ͢Δɻ
24
࠷ޙͷར༻೔ <= (today() − days(30))

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25
࠷ޙͷར༻೔͔ΒܭࢉΛ࡞੒ʢMutateʣ͢Δɻ

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26
νϟʔϯΛਪఆ͢ΔܭࢉࣜΛೖྗ࣮͠ߦ͢Δɻ

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27
νϟʔϯΛਪఆͰ͖Δɻ

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28
ͱ͜ΖͰɺɺɺ

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29
ຖ೔ͷΑ͏ʹαʔϏεΛར༻͢Δਓ΋͍Ε͹ɺͦ΋ͦ
΋2ϲ݄ʹ1౓͔͠αʔϏεΛར༻͠ͳ͍ਓ΋͍Δɻ
·ͨ30೔ͱ͍͏ਪఆج४ʹ͸ࠜڌ͕ͳ͍ɻ
Ϣʔβʔ͝ͱͷαʔϏεͷར༻ঢ়گʹ஫໨ͯ͠ɺ
νϟʔϯΛਪఆ͢Δ͜ͱ͸Ͱ͖ͳ͍͔ɻ

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30

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31
2िؒʹ1౓ͷִؒͰར༻͍ͯ͠ΔϢʔβʔΛྫʹߟ͑ͯΈΔɻ
3/15
1/11 1/25 2/4 2/18 3/1

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32
3/15 6/3
ࠓ೔
2िؒʹ1౓ͷִؒͰαʔϏεΛར༻͍ͯ͠ΔϢʔβʔ͕ɺ2ϲ݄Ҏ্αʔϏεΛ
ར༻͍ͯ͠ͳ͚Ε͹ɺͦͷϢʔβʔ͸νϟʔϯ͍ͯ͠ΔͱਪఆͰ͖Δɻ
࠷ޙͷར༻
80೔ؒ
1/11 1/25 2/4 2/18 3/1

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33
2ϲ݄͓͖ʹɺαʔϏεΛར༻͍ͯ͠ΔϢʔβʔͰ͸Ͳ͏ͩΖ͏ɻ
4/20
12/20 2/20

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34
6/3
ࠓ೔
Ծʹ1ϲ݄Ҏ্ɺαʔϏεͷར༻͕ͳͯ͘΋ɺࠓޙ΋αʔϏεΛར༻͢ΔՄೳੑ͕
े෼͋Γɺ͜ͷϢʔβʔ͸νϟʔϯͨ͠΋ͷͱਪఆ͢Δ͜ͱ͸ݱ࣮తͰ͸ͳ͍ɻ
4/20
࠷ޙͷར༻
44೔ؒ
12/20 2/20

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35
ͦΕͧΕͷϢʔβʔͷར༻ִؒΛݩʹνϟʔϯΛ൑அ
ͨ͠΄͏͕ɺΑΓਖ਼֬ʹνϟʔϯΛਪఆͰ͖Δɻ

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36
͔͠͠ɺར༻ִؒ͸͹Βͭ͘ɻ

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37
60 10
7
21
9
3
30
4/20
4/10
4/3
3/13
3/4
1/4
1/1
11/30

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38
Ϣʔβʔ͝ͱʹར༻ִؒͷස౓Λूܭͯ͠ɺνϟʔϯ
Λਪఆ͢Δ͖͍͠஋ΛܾΊΔɻ

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39
1ਓͷϢʔβʔͷ͜Ε·Ͱͷར༻ִؒͷස౓Λूܭ͢ΔʢώετάϥϜʣ
10 20 30 50 100
0 40 60 70 80 90
10
20
30
ස౓
ར༻ִؒʢ೔ʣ

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40
࠷େͷར༻ִؒΛ͖͍͠஋ͱͯ͠ɺ࠷ޙͷར༻͔Βͷܦա೔਺͕ɺͦ
ͷִؒΛ௒͍͑ͯΔ৔߹ʹνϟʔϯ͍ͯ͠Δ΋ͷͱਪఆͰ͖Δɻ
10 20 30 50 100
0 40 60 70 80 90
10
20
30
ස౓
ར༻ִؒʢ೔ʣ
ར༻ִؒͷ࠷େ஋
νϟʔϯ

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41
ͨͩ͠ɺར༻ִ͕ؒͨ·ͨ·ۃ୺ʹۭ͍ͯ͠·͏͜ͱ΋͋Δɻ
4/20
2/24
1/7
11/30
9/26
6/18 10/26
6/5
13 100 30 35 38 48 55

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42
10 20 30 50 100
0 40 60 70 80 90
10
20
30
ස౓
ར༻ִؒʢ೔ʣ
ར༻ִؒͷ࠷େ஋
࠷େͷར༻ִؒΛ͖͍͠஋ʹ͢Δͱɺ1ճͷۃ୺ͳར༻ִؒʹৼΓճ͞ΕɺλΠϜ
ϦʔʹνϟʔϯΛਪఆͰ͖ͳ͍ɻ
νϟʔϯ

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43
ۃ୺ͳར༻ִؒͷ஋ͷӨڹΛड͚ͳ͍Α͏ʹɺશମͷ95%ͷར༻ִ͕ؒ
ؚ·ΕΔͱ͜Ζʹɺ͖͍͠஋Λઃఆ͢Δɻ
10 20 30 50 100
0 40 60 70 80 90
10
20
30
ස౓
ར༻ִؒʢ೔ʣ
͖͍͠஋
શମͷ95%ͷར༻
ִؚ͕ؒ·ΕΔ
55

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44
͜ͷΑ͏ʹɺස౓Λখ͍͞ํ͔ΒॱʹͳΒ΂ͯɺશମͷσʔλͷͲͷ͘
Β͍ΛؚΉ͔Λද͖͍͢͠஋ΛύʔηϯλΠϧͱݺͿɻ
10 20 30 50 100
0 40 60 70 80 90
10
20
30
ස౓
ར༻ִؒʢ೔ʣ
ར༻ִؒͷ95ύʔηϯλΠϧ
55
શମͷ95%ͷར༻
ִؚ͕ؒ·ΕΔ

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45
10 20 30 50 100
0 40 60 70 80 90
10
20
30
ස౓
ར༻ִؒʢ೔ʣ
55
νϟʔϯ
ར༻ִؒͷ࠷େ஋Ͱ͸ͳ͘ɺ95%ύʔηϯλΠϧΛ͖͍͠஋ʹઃఆ͢Δ͜ͱͰɺۃ
୺ʹେ͖͍ར༻ִؒΛআ͍ͯɺར༻࣮ଶʹΑΓ͍ۙܗͰ͖͍͠஋ΛઃఆͰ͖Δɻ

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46
6/3
ࠓ೔
4/20
4/9
࠷ޙͷར༻
ར༻ִؒͷ95ύʔηϯλΠϧ: 55೔ؒ
࠷ޙͷར༻೔ͱࠓ೔ͷ೔෇͔Βར༻ִؒͷ95ύʔηϯλΠϧ෼ɺ͔͞ͷ΅ͬͨ೔෇
Λൺ΂ͯɺνϟʔϯΛ͍ͯ͠Δ͔Ͳ͏͔Λ൑ఆ͢Δɻ
55೔લ
2/24
1/7
11/30
9/26
6/18 10/26
6/5

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47
6/3
ࠓ೔
4/20
4/9
࠷ޙͷར༻
55೔લ
2/24
1/7
11/30
9/26
6/18 10/26
6/5
࠷ޙͷར༻೔ <= (<ࠓ೔ͷ೔෇> − <ར༻ִؒͷ95ύʔηϯλΠϧ>)
νϟʔϯͷ൑ఆ

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48
͜ͷਪఆΛϢʔβʔ͝ͱʹߦ͏ɻ

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49
10 20 30 50 100
0 40 60 70 80 90
10
20
30
ར༻ִؒʢ೔ʣ
Ϣʔβʔ͝ͱʹར༻ִؒͷ95ύʔηϯλΠϧΛܭࢉ͢Δɻ
55
10 20 30 50 100
0 40 60 70 80 90
10
20
30
ར༻ִؒʢ೔ʣ
32
ϢʔβʔA
ϢʔβʔB

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50
6/3
4/20
4/9
Ϣʔβʔ͝ͱͷར༻ִؒͷύʔηϯλΠϧΛར༻ͯ͠ɺνϟʔϯਪఆ͢Δɻ
3/3
1/7
12/30
11/29
9/26
6/18
3/20
ར༻ִؒͷ95ύʔηϯλΠϧ: 55೔
ར༻ִؒͷ95ύʔηϯλΠϧ: 32೔
6/3
ࠓ೔
4/20 5/14
2/18
2/2
12/23
11/15
10/3
8/28
7/20
ࠓ೔
࠷ޙͷར༻
55೔લ
32೔લ
࠷ޙͷར༻

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51
ͪͳΈʹɺɺɺ

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52
10 20 30 50 100
0 40 60 70 80 90
10
20
30
ස౓
ར༻ִؒʢ೔ʣ
νϟʔϯͷਪఆج४ΛγϏΞʹ͚ͨ͠Ε͹ɺΑΓখ͞ͳύʔηϯλΠϧΛར༻
͢Ε͹ྑ͍ɻ
42
νϟʔϯ

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53
Let’s try!

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54
1. ར༻ִؒͷܭࢉ
2. ࠷ॳͷར༻೔ɺ࠷ޙͷར༻೔ɺར༻ִؒͷ95ύʔηϯλΠϧͷूܭ
3. νϟʔϯͷਪఆ

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55
3. νϟʔϯͷਪఆ

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Ϣʔβʔͷར༻ִؒΛͲͷΑ͏ʹܭࢉ͢Δͷ͔ɻ
56
60 10
7
21
9
3
30
4/20
4/10
4/3
3/13
3/4
1/4
1/1
11/30

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1ߦ͕1ΞΫηεͷσʔλ͔ΒɺϢʔβʔͷར༻ִؒΛܭࢉ͍ͨ͠ɻ
57
Ϣʔβʔ໊ ར༻೔ ར༻ִؒʢ೔ʣ
Tom 2020-02-01
Tom 2020-05-01 90
Tom 2020-09-01 123

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ར༻ִؒ͸αʔϏεͷར༻೔͔Βલճͷར༻೔ΛҾ͍ͯɺܭࢉͰ͖Δɻ
58
Tom 2020-02-01
Tom 2020-05-01 90
Tom 2020-09-01 123

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lagؔ਺Λར༻ͯ͠ɺલճͷར༻೔Λऔಘ͢Δɻ
59
Ϣʔβʔ໊ ར༻೔ lag(ར༻೔)
Tom 2020-02-01
Tom 2020-05-01 2020-02-01
Tom 2020-09-01 2020-05-01
lag(<ར༻೔>)

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60
Ϣʔβʔ໊ ར༻೔ lag(ར༻೔) ར༻ִؒ
Tom 2020-02-01
Tom 2020-05-01 2020-02-01 90
Tom 2020-09-01 2020-05-01 123
<ར༻೔> − lag(<ར༻೔>)
ར༻ִؒ

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61
͍͔ͭ͘஫ҙ͕ඞཁͳ͜ͱ͕͋Δɻ

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Tom 2020-02-01
Tom 2020-09-01 212
Tom 2020-05-01 -123
ར༻೔Ͱฒͼସ͑ΒΕ͍ͯͳ͍ͱਖ਼͍͠ར༻ִ͕ؒܭࢉͰ͖ͳ͍ɻ

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Tom 2020-02-01
Tom 2020-05-01 90
Tom 2020-09-01 123
ར༻೔ΛঢॱͰฒͼସ͑Δɻ

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Ϣʔβʔ໊ ར༻೔
Tom 2020-02-01
Tom 2020-05-01
Tom 2020-09-01
John 2020-01-01
John 2020-02-03
σʔλʹ͸TomҎ֎ͷϢʔβʔ͕͍Δɻ

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Ϣʔβʔ໊ ར༻೔ lag(ར༻೔) ར༻ִؒ
Tom 2020-02-01
Tom 2020-05-01 2020-02-01 90
Tom 2020-09-01 2020-05-01 123
John 2020-01-01 2020-09-01 -243
John 2020-02-03 2020-01-01 33
͔͠͠ɺ͜ͷ··ͩͱTomͱJohnʹ·͕ͨͬͯલճͷར༻೔Λܭࢉ͠
ͯ͠·͏ɻ

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Ϣʔβʔ໊ ར༻೔
Tom 2020-02-01
Tom 2020-05-01
Tom 2020-09-01
John 2020-01-01
John 2020-02-03
Ϣʔβʔ໊ͰάϧʔϓԽ͢Δɻ

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Ϣʔβʔ໊ͰάϧʔϓԽ͓ͯ͘͜͠ͱͰɺϢʔβʔ͝ͱʹར༻ִ͕ؒద
੾ʹܭࢉͰ͖Δɻ
Ϣʔβʔ໊ ར༻೔ lag(ར༻೔) ར༻ִؒʢ೔ʣ
Tom 2020-02-01
Tom 2020-05-01 2020-02-01 90
Tom 2020-09-01 2020-05-01 123
John 2020-01-01
John 2020-02-03 2020-01-01 33

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68
΋͏1ͭ஫ҙ͕ඞཁͳ͜ͱ͕͋Δɻ

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Ϣʔβʔ໊ ར༻೔ lag(ར༻೔) ར༻ִؒʢ೔ʣ
Tom 2020-02-01
Tom 2020-02-01 2020-02-01 0
Tom 2020-05-01 2020-02-01 90
Tom 2020-09-01 2020-05-01 123
ಉ͡೔ʹෳ਺ͷΞΫηε͕͋Δͱɺར༻ִ͕ؒ0೔ʹͳͬͯ͠·͏ͷ
Ͱɺ1೔1ΞΫηεͷσʔλʹ͢Δඞཁ͕͋Δɻ

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ར༻೔Ͱιʔτ
70

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ϢʔβʔIDͰάϧʔϓԽ
71

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1೔1ΞΫηεʹϑΟϧλ͢Δɻ
72

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ར༻ִؒͷܭࢉ
73

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ར༻ִؒͷܭࢉ
74

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3. νϟʔϯͷਪఆ
75

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76
֤Ϣʔβʔͷར༻ִ͕ؒܭࢉͰ͖ͨΒɺੜଘۂઢ༻ͷσʔλΛ࡞੒͢ΔͨΊʹɺ
࠷ॳͷར༻೔ɺ࠷ޙͷར༻೔ɺར༻ִؒͷ95ύʔηϯλΠϧΛूܭ͍ͨ͠ɻ
Ϣʔβʔ໊ ࠷ॳͷར༻೔ ࠷ޙͷར༻೔ ར༻ִؒͷ95ύʔηϯλΠϧ
Tom 2020-02-01 2020-11-20 120
John 2020-01-01 2020-04-04 39
Tom 2020-02-01
Tom 2020-05-01 90
Tom 2020-09-01 123
Tom 2020-11-20 80
John 2020-01-01
John 2020-02-03 33
John 2020-02-24 21
John 2020-04-04 40

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Tom 2020-02-01 2020-11-20 120
John 2020-01-01 2020-04-04 39
Tom 2020-02-01
Tom 2020-05-01 90
Tom 2020-09-01 123
Tom 2020-11-20 80
John 2020-01-01
John 2020-02-03 33
John 2020-02-24 21
John 2020-04-04 40
ར༻೔ͷ࠷খ஋ͱ࠷େ஋Λूܭ͢Ε͹ɺ࠷ॳͷར༻೔ɺ࠷ޙͷར༻೔ʹ
ͳΔɻ
77

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Tom 2020-02-01
Tom 2020-05-01 90
Tom 2020-09-01 123
Tom 2020-11-20 80
John 2020-01-01
John 2020-02-03 33
John 2020-02-24 21
John 2020-04-04 40
78
ར༻ִؒͷ95ύʔηϯλΠϧΛूܭ͍ͨ͠ɻ
Tom 2020-02-01 2020-11-20 120
John 2020-01-01 2020-04-04 39

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quantile(<ར༻ִؒ>, probs = <ύʔηϯλΠϧ>)
79
ύʔηϯλΠϧͷूܭ
※࣮ࡍʹूܭ͢Δࡍ͸ɺsummarize(ूܭ)ؔ਺ͷதͰར༻͢Δ

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80
※࣮ࡍʹूܭ͢Δࡍ͸ɺsummarize(ूܭ)ؔ਺ͷதͰར༻͢Δ
quantile(<ར༻ִؒ>, probs = 0.95)
Tom 2020-02-01
Tom 2020-05-01 90
Tom 2020-09-01 123
Tom 2020-11-20 80
John 2020-01-01
John 2020-02-03 33
John 2020-02-24 21
John 2020-04-04 40
Tom 2020-02-01 2020-11-20 120
John 2020-01-01 2020-04-04 39

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Ϣʔβʔ͝ͱʹूܭ(Summarize)͢Δɻ
81

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࠷ॳͷར༻೔ͷूܭ
82
ूܭؔ਺ʹ࠷ॳͷ೔(min)Λબ୒͢Δɻ

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࠷ޙͷར༻೔ͷूܭ
83
ूܭؔ਺ʹ࠷ޙͷ೔(max)
Λબ୒͢Δɻ

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ར༻ִؒͷ95ύʔηϯλΠϧΛूܭ͢Δɻ
84
ूܭؔ਺ʹ෼Ґ਺Λબ୒͢Δɻ

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ར༻ִؒͷ95ύʔηϯλΠϧΛूܭ͢Δɻ
85
ύʔηϯλΠϧΛখ਺Ͱೖྗ͢Δ

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86
࠷ॳͱ࠷ޙͷར༻೔ɺར༻ִؒͷ95ύʔηϯλΠϧΛूܭͰ͖ͨɻ

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3. νϟʔϯͷਪఆ
87

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88
6/3
ࠓ೔
4/20
4/9
࠷ޙͷར༻
55೔લ
2/24
1/7
11/30
9/26
6/18 10/26
6/5
࠷ޙͷར༻೔ <= (<ࠓ೔ͷ೔෇> − <ར༻ִؒͷ95ύʔηϯλΠϧ>)
νϟʔϯͷ൑ఆ

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89
ࠓ೔ͷ೔෇ɺ࠷ޙͷΞΫηε೔ɺར༻ִؒͷ90ύʔηϯλΠϧΛ࢖ͬ
ͯνϟʔϯΛਪఆ͢ΔܭࢉΛ࡞੒ʢMutateʣ͢Δɻ
࠷ޙͷར༻೔ <= (ࠓ೔ͷ೔෇ − ར༻ִؒͷ90ύʔηϯλΠϧ)

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90
νϟʔϯΛ൑ఆ͢ΔܭࢉΛ࡞੒͢Δɻ

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91
νϟʔϯΛਪఆͰ͖ͨɻ

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92
ͱ͜ΖͰɺɺɺ

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93
αʔϏεར༻ස౓͕গͳ͍Ϣʔβʔ͸ɺ෼෍Λݟੵ΋
ΔͨΊͷσʔλ͕े෼ͱ͸ݴ͑ͳ͍ɻ

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94
αʔϏεར༻ස౓͕গͳ͍Ϣʔβʔ͸ɺ෼෍Λݟੵ΋ΔͨΊͷσʔλ͕
े෼ͱ͸ݴ͑ͳ͍ɻ

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95
ͦ͜ͰɺαʔϏεͷར༻ස౓ʹԠͯ͡ɺνϟʔϯͷ൑ఆํ๏Λม͑Δɻ
ར༻ճ਺͕5ճҎԼ
࠷ޙͷར༻೔͔Βͷܦա࣌ؒͰ
νϟʔϯΛਪఆ͢Δ
Ϣʔβʔ͝ͱͷར༻ִؒΛ΋ͱ
ʹνϟʔϯΛਪఆ͢Δɻ
Yes
No

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96
࠷ॳͱ࠷ޙͷར༻೔ͱར༻ִؒͷ90ύʔηϯλΠϧΛूܭͨ͠εςοϓͷ
τʔΫϯΛ࠶౓։͖ɺར༻೔ͷҰҙͷ஋Λूܭͯ͠ɺར༻ස౓Λूܭ͢Δɻ

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SaaS アナリティクス・シリーズ - 生存分析のためのデータの作り方 Part 2

SaaS アナリティクス・シリーズ - 生存分析のためのデータの作り方 Part 2

Ikuya Murasato

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