Video: NumPy saib yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Dab tsi yog a saib ntawm a NumPy array? Raws li nws lub npe hais, nws tsuas yog lwm txoj hauv kev los saib cov ntaub ntawv ntawm array. Technically, qhov ntawd txhais tau hais tias cov ntaub ntawv ntawm ob yam khoom sib koom. Koj tuaj yeem tsim saib los ntawm kev xaiv ib daim ntawm cov thawj array, los yog kuj los ntawm kev hloov lub dtype (los yog ib tug ua ke ntawm ob qho tib si).
Ua li no, puas yog NumPy hlais daim ntawv?
Tag nrho cov arrays tsim los ntawm qhov yooj yim txiav yeej ib txwm views ntawm tus thawj array. NumPy hlais tsim ib qho kev pom tsis yog a luam xws li nyob rau hauv cov ntaub ntawv ntawm builtin Python sequences xws li hlua, tuple thiab daim ntawv teev.
NumPy array yog dab tsi? Arrays . A numpy array yog ib daim phiaj ntawm qhov tseem ceeb, tag nrho cov tib yam, thiab yog indexed los ntawm ib tug tuple ntawm nonnegative integers. Tus naj npawb ntawm qhov ntev yog qib ntawm cov array ; lub shape ib array yog ib tug tuple ntawm integers muab qhov loj ntawm tus array raws txhua qhov ntev.
Tom qab ntawd, lo lus nug yog, koj tuaj yeem luam cov ntaub ntawv hauv NumPy li cas?
Lub tsev qiv ntawv muaj nuj nqi luam . luam () yuav tsum tsim ib tug daim ntawv loj ntawm nws qhov kev sib cav, tab sis thaum siv rau a NumPy array nws tsim ib daim ntawv loj hauv kev nkag siab B, piv txwv li cov array tshiab tau txais nws tus kheej luam ntawm cov ntaub ntawv tsis, yog li kev hloov pauv rau ib qho array tsis cuam tshuam rau lwm qhov.
Kuv yuav luam qhov array hauv Numpy li cas?
- Syntax: numpy.copy(a, order='K') Rov qab ib qho array luam ntawm cov khoom muab.
- Parameters: a: array_like. Cov ntaub ntawv nkag.
- xaj: {'C', 'F', 'A', 'K'}, yeem. Tswj lub cim xeeb layout ntawm daim ntawv theej. 'C' txhais tau tias C-order, 'F' txhais tau tias F-order, 'A' txhais tau tias 'F' yog tias ib tug yog Fortran contiguous, 'C' txwv tsis pub.
- Rov qab: arr: ndarray.
Pom zoo:
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