May 2022
Beginner to intermediate
448 pages
13h 7m
Korean
book
밑바닥부터 시작하는 데이터 과학 데이터 분석을 위한 파이썬 프로그래밍과 수학·통계 기초
by Joel Grus, Hangyeol Kim, Seongju Ha, Eunjung Park
Content preview from 밑바닥부터 시작하는 데이터 과학 데이터 분석을 위한 파이썬 프로그래밍과 수학·통계 기초
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Data Science
180
이 코드가 어떻게 작동하는지 한번 자세히 들여다 보자.
12.2
예시: Iris 데이터
Iris
데이터는 기계학습에서 자주 쓰이는 데이터셋 중 하나이다.
Iris
데이터는 붓
꽃(
iris
) 세 종에 속하는
150
개의 꽃의 다양한 측정치를 담고 있다. 각각 꽃의 꽃
잎 길이(
petal
length
), 꽃잎 너비(
petal
width
), 꽃받침 길이(
sepal
length
), 꽃
받침 너비(
sepal
width
)와 종(
species
)이 기록되어 있다. 해당 데이터는
https://
archive.ics.uci.edu/ml/datasets/iris
에서 받을 수 있다.
import requests
data = requests.get(
"https://archive.ics.uci.edu/ml/machine-learning-databases/iris/iris.data"
)
with open('iris.dat', 'w') as f:
f.write(data.text)
데이터는 쉼표로 분리되어 있으며 아래의 필드를 지니고 있다.
꽃받침
길이
,
꽃받침
너비
,
꽃잎
길이
,
꽃잎
너비
,
분류
가령 첫 행은 다음과 같이 생겼다.
5.1,3.5,1.4,0.2,Iris-setosa
이번 장에서는 첫 네 가지 측정치를 사용하여 종을 분류해낼 수 있는 모델을 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.