June 2018
Beginner to intermediate
304 pages
7h 38m
Korean
Content preview from 우아한 사이파이: 수학, 과학, 엔지니어링을 위한 파이썬 데이터 분석 라이브러리 SciPy
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178
우아한 사이파이
단순하게 행렬을 출력하는 것이라면 .
toarray
( ) 메서드를 사용한다.
pred
=
np
.
array
([
0
,
1
,
0
,
0
,
1
,
1
,
1
,
0
,
1
,
1
])
gt
=
np
.
array
([
0
,
0
,
0
,
0
,
0
,
1
,
1
,
1
,
1
,
1
])
cont
=
confusion
_
matrix
(
pred
,
gt
)
print
(
cont
)
(
0
,
0
)
1
.
0
(
1
,
0
)
1
.
0
(
0
,
0
)
1
.
0
(
0
,
0
)
1
.
0
(
1
,
0
)
1
.
0
(
1
,
1
)
1
.
0
(
1
,
1
)
1
.
0
(
0
,
1
)
1
.
0
(
1
,
1
)
1
.
0
(
1
,
1
)
1
.
0
print
(
cont
.
toarray
())
[[
3
.
1
.]
[
2
.
4
.]]
잘 동작한다!
5.4.1
연습문제 : 메모리 사용량 줄이기
1
장에서 넘파이의 브로드캐스팅을 사용하여 배열을 연산하는 방법을 살펴봤다. 혼동행렬을 계
산할 때 메모리 사용량을 어떻게 줄일 수 있을까?
HINT
_
넘파이의
np
.
broadcast
_
to
() 함수 문서를 참조한다.
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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.