March 2018
Beginner to intermediate
332 pages
6h 1m
Korean
Content preview from 9가지 사례로 익히는 고급 스파크 분석(2판): 현실 세계 빅데이터로 배우는 데이터 과학과 머신러닝
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322
9가지 사례로 익히는 고급 스파크 분석 (2판)
[((0, 0, 0), array([ 0.4])), ((0, 0, 1), array([ 0.35707142]))]
(2, 76, 87, 20)
특정 모양 (이 경우는
2
×
76
×
87
)을 가진
Series
를 로컬 넘파이 배열로 재패키징할 수도 있다.
repacked = stddev.toarray()
plt.imshow(repacked[:,:,0], interpolation='nearest', cmap='gray',
aspect='equal')
print type(repacked)
print repacked.shape
...
<type 'numpy.ndarray'>
(2, 76, 87)
plot
메서드로 동일한 공간적 관계를 이용하여 각
3D
화소의 표준편차를 그려볼 수 있다(그림
11
-
4
). 네트워크 트래픽과 메모리를 꽤 소비할 것이므로 클라이언트로 너무 많은 데이터가
반환되지 않도록 주의해야 한다.
그림
11-4
원본 제브라피쉬 데이터에서
3D
화소별 표준편차
다른 방법으로, 시계열 데이터의 중심을 맞추고(
center
메서드 ) 그 부분집합 (
subset
메서드 )
을 직접 그려볼 수도 있다 (그림
11
-
5
).
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and much more.
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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.