Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
DataFrames and Types with Julia
Search
Kiichi
October 20, 2018
Programming
1.2k
0
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
DataFrames and Types with Julia
Presentation at JuliaTokyo #8
https://juliatokyo.connpass.com/event/100780/
Kiichi
October 20, 2018
Other Decks in Programming
See All in Programming
地域 SRE コミュニティ最前線 - ホンマでっかSRE勉強会
tk3fftk
0
170
【やさしく解説 設計編 #0】DDDのコード、読めるのに分からない人へ
panda728
PRO
2
230
気圧・高度・GPSを記録&可視化するアプリ「Koudo」を作った話
hjmkth
1
350
Semantic Version 単位で戦略を柔軟に変えて、パッケージアップデートを自動化する
daitasu
1
340
Vue × Nuxt × Oxc どこまで使える?実運用の現在地
andpad
0
360
SLOをサービス品質の共通言語にするために 取り組んできたこと
wakana0222
0
400
Snowflake Summitでの新機能 CoCo / CoWork / snowflake-summit-2026-overall-what-new-coco
tatsuhiro
1
220
過去最大のMCPアップデート! 2026-07-28 RC版の謎に迫る
licux
6
460
TSKaigi Night Talks 2026_TypeScriptでサプライチェーンの整合性を型に閉じ込める
geekplus_tech
0
430
フィードバックで育てるAI開発
kotaminato
1
110
AI がコードを書く時代における新卒エンジニアの仕事風景 (2026) / New Graduate Engineers in the Era of AI Coding (2026)
sushichan044
0
200
才能?センス?知らん、 続けたもん勝ちだ。-- 結婚・出産・癌を越えてなお、私がプロダクトを創り続ける理由
16bitidol
2
800
Featured
See All Featured
Stewardship and Sustainability of Urban and Community Forests
pwiseman
0
250
Discover your Explorer Soul
emna__ayadi
2
1.2k
Dominate Local Search Results - an insider guide to GBP, reviews, and Local SEO
greggifford
PRO
0
200
The Invisible Side of Design
smashingmag
301
52k
SERP Conf. Vienna - Web Accessibility: Optimizing for Inclusivity and SEO
sarafernandez
2
1.5k
コードの90%をAIが書く世界で何が待っているのか / What awaits us in a world where 90% of the code is written by AI
rkaga
62
44k
[SF Ruby Conf 2025] Rails X
palkan
2
1.1k
What the history of the web can teach us about the future of AI
inesmontani
PRO
1
630
Chasing Engaging Ingredients in Design
codingconduct
0
230
Leveraging Curiosity to Care for An Aging Population
cassininazir
1
310
The innovator’s Mindset - Leading Through an Era of Exponential Change - McGill University 2025
jdejongh
PRO
1
220
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
287
14k
Transcript
%BUB'SBNFTBOE5ZQFTXJUI+VMJB +VMJB5PLZP 0DUPCFS
!,J@DIJ
%BUB'SBNFT.FUB +VMJB%# 2VFSZWFSTFΛͦΕͧΕ৮ͬͯΈͨr,J@DIJ!#MPH IUUQLJDIJKQ Q
%BUB'SBNFTBOE5ZQFTXJUI+VMJB +VMJB5PLZP 0DUPCFS
%BUB'SBNF 4FQBM-FOHUI 4FQBM8JEUI 1FUBM-FOHUI 1FUBM8JEUI 4QFDJFT
4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB ộ *SJT
5XP4VQFSDPVQMFTJO%BUB4DJFODF
8IP`TOFYU
5IF$BOEJEBUFT %BUB'SBNFT %BUB'SBNFT.FUB +VMJB%# 2VFSZWFSTF 2VFSZKM
%BUB'SBNFT %BUB'SBNFT.FUB .PTUQPQVMBSUBCVMBSGSBNFXPSLJO+VMJB &BTZUPVTFGPSUJEZWFSTFQBOEBTVTFST 1SPWJEJOHNBDSPTGPSEBUBQSPDFTTJOH
None
None
None
None
None
+VMJB%# /PUBEBUBCBTFTFSWFS "QBSUPG+VMJB'*/QSPKFDUCZ+VMJB$PNQVUJOH *OD *ONFNPSZ PVUPGDPSF BOEEJTUSJCVUFEDPNQVUJOH
None
None
None
2VFSZWFSTF "ONFUBQBDLBHFPGNVMUJQMFQBDLBHFT w %BUB7BMVFT w *UFSBCMF5BCMFT w2VFSZ w 7FHB-JUF w
'JMF*0 w &YDFM'JMFT w 4UBU'JMFT w $47'JMFT w 'FBUIFS'JMFT w%BUB'SBNFT w %BUB7PZBHFS
None
None
5IF$BOEJEBUFT %BUB'SBNFT %BUB'SBNFT.FUB +VMJB%# 2VFSZWFSTF 2VFSZKM
0, *KVTUXBOUUPFYUSBDU b4FQBM-FOHUI`
None
8IJDIJTUIFCFTU
W W %BUB'SBNFT %BUB'SBNFT.FUB +VMJB%# 2VFSZWFSTF BTPG0DUPCFS
%BUB'SBNFTBOE5ZQFTXJUI+VMJB +VMJB5PLZP 0DUPCFS
1. A list 2. With (unique) names 3. Containing vectors
(including lists!) 4. With equal NROW() 5. Optional row names best avoided — Hadley Wickham at TokyoR “What is a data frame?” 4FQBM-FOHUI 4FQBM8JEUI 1FUBM-FOHUI 1FUBM8JEUI 4QFDJFT 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB
4FQBM-FOHUI 4FQBM8JEUI 1FUBM-FOHUI 1FUBM8JEUI 4QFDJFT 4FUPTB
4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB ộ *SJT 6OJRVFOBNFT 7FDUPST
4FQBM-FOHUI 4FQBM8JEUI 1FUBM-FOHUI 1FUBM8JEUI 4QFDJFT 4FUPTB
4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB ộ *SJT -JTU 7FDUPS\"OZ^
FY%BUB'SBNFT 4FQBM-FOHUI 4FQBM8JEUI 1FUBM-FOHUI 1FUBM8JEUI 4QFDJFT
4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB
FY+VMJB%# *OEFYFE5BCMFT 4FQBM-FOHUI 4FQBM8JEUI 1FUBM-FOHUI 1FUBM8JEUI 4QFDJFT
4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB
%J⒎FSFOUQBDLBHFTDPOTUSVDU EJ⒎FSFOUUZQFTPGEBUBGSBNFT
5BCMFUSBJUTK* *UFSBCMF5BCMFTKM (FOFSJDUBCVMBSJOUFSGBDF
5BCMFUSBJUTl5BCMF/BNFE5VQMFz
/BNFE5VQMF
4FQBM-FOHUI 4FQBM8JEUI 1FUBM-FOHUI 1FUBM8JEUI 4QFDJFT 4FUPTB
4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB 4FUPTB
*UFSBCMF5BCMF
5IF$BOEJEBUFT %BUB'SBNFT %BUB'SBNFT.FUB +VMJB%# 2VFSZWFSTF 2VFSZKM
5IF$BOEJEBUFT 6QEBUFE 5BCMFUSBJUTK* *UFSBCMF5BCMFTKM %BUB'SBNFT +VMJB%# 2VFSZWFSTF BOENPSF
%BUB'SBNFT.FUB 2VFSZ