numpy 2

numpy.random.rand

import numpy as npx = np.random.rand(1)print(x)rand(0.1) ํ•˜๋ฉด error ๋ฐœ์ƒ. ํ .... ์ธ์ˆ˜๋Š” 1๋ณด๋‹ค ์ปค์•ผ ํ•˜๋Š”๊ตฐ!rand(3.4)ํ•ด๋„ error ๋ฐœ์ƒ.  ํ .... ์ธ์ˆ˜๋Š” 1๋ณด๋‹ค ํฐ ์ •์ˆ˜๋งŒ ๊ฐ€๋Šฅํ•œ๊ฐ€ ๋ณด๊ตฐ!rand(-2) ํ•ด๋„ error ๋ฐœ์ƒ.  ํ .... ์ธ์ˆ˜๋Š” 1๋ณด๋‹ค ํฐ ์–‘์˜ ์ •์ˆ˜๋งŒ ๊ฐ€๋Šฅํ•œ๊ฐ€ ๋ณด๊ตฐ!import numpy as npx = np.random.rand(3)print(x)๊ฒฐ๊ณผ๋ฅผ ๋ณด๋‹ˆ, ์ธ์ˆ˜์— N์ด๋ผ๋Š” ์ •์ˆ˜๋ฅผ ๋„ฃ์œผ๋ฉด, ์›์†Œ ๊ฐฏ์ˆ˜๊ฐ€ N์ธ 1์ฐจ์› ๋ฐฐ์—ด์ด ์ƒ๊ธฐ๊ณ , ๊ฐ ์›์†Œ๋Š” 0~1์‚ฌ์ด์˜ ๋žœ๋ค์ˆซ์ž๊ฐ€ ๋˜๋Š” ๊ฒƒ ๊ฐ™๋‹ค. ๊ทธ๋ ‡๋‹ค๋ฉด rand(2,3) ์€ ์–ด๋–ค ๊ฒฐ๊ณผ์ผ๊นŒ?import numpy as npx = np.random.rand(2,3)print(x)๊ฐ€๋กœ 2..

numpy 2021.08.03

[numpy] linspace vs arange

โ–  linspace vs arange๋‘˜ ๋‹ค ์ˆซ์ž๋กœ ๋œ ์‹œํ€€์Šค๋ฅผ ๋งŒ๋“ ๋‹ค๋Š” ์ ์—์„œ ๋™์ผarange(์‹œ์ž‘ ์ˆซ์ž, ๋ฏธ๋งŒ ์ˆซ์ž, ๊ฐ„๊ฒฉ)np.arange(10, 0, -1) → [10, 9, 8, 7, 6, 5, 4, 3, 2, 1] ์ด ๋จ.0์ด ํฌํ•จ ์•ˆ๋œ๋‹ค.์ฆ‰, arange๋Š” 'A์—์„œ ์‹œ์ž‘ํ•ด์„œ ์ผ์ •๊ฐ„๊ฒฉ์œผ๋กœ ์ˆซ์ž๋ฅผ ๋งŒ๋“ค๋˜, B๋Š” ํฌํ•จํ•˜์ง€ ์•Š์„ ๋•Œ๊นŒ์ง€'๋ผ๋Š” ์˜๋ฏธ๋‹ค.๋ฐ˜๋ฉด linspace๋Š” ๋ฐ˜๋“œ์‹œ ๋ ๊ตฌ๊ฐ„์„ ํฌํ•จํ•œ๋‹ค.np.linspace(์‹œ์ž‘ ์ˆซ์ž, ์ดํ•˜ ์ˆซ์ž, ๊ทธ ์‚ฌ์ด์— ์ฐ์„ ์ˆซ์ž ์ˆ˜)Python 3.12.4 (tags/v3.12.4:8e8a4ba, Jun 6 2024, 19:30:16) [MSC v.1940 64 bit (AMD64)] on win32Type "help", "copyright", "credits" ..

numpy 2020.11.01