Munyika yezvirongwa, zvakakosha kuti uzive maitiro ekushandisa uye kubata data nemazvo. Imwe yakakurumbira mitauro yepurogiramu inobvumira vanogadzira kushanda nedata nemazvo ndeye Python. Nekuda kwekuita kwayo kwakasiyana-siyana uye akawanda maraibhurari, Python yave inofarira pakati pevagadziri uye data masayendisiti. Imwe raibhurari yakadaro numpy, iyo inonyanya kushanda nearrays uye nhamba dzekushanda. Muchikamu chino, tichaongorora nzira yekuwana chinhu chimwe chete kubva kuArrayList muNumPy array, kurukura maraibhurari uye mabasa anoshandiswa, uye ongorora munhoroondo yezvishandiso zvePython.
NumPy, pfupiso ye Numerical Python, iraibhurari ine simba inoshandiswa kune akasiyana siyana masvomhu nenhamba. Iyo inonyanya kutariswa yeNumPy ndeye yayo ndarray chinhu, inova multidimensional array iyo inogona kuchengeta uye kushandura yakawanda data. Kuti utore chinhu chimwe chete kubva kuArrayList, isu tinofanirwa kuongorora mukuita kunoshanda kunopihwa neiyi raibhurari inobatsira.
import numpy as np
# Creating a NumPy array
array = np.array([1, 2, 3, 4, 5])
# Accessing a single element
element = array[2]
print("Single Element from ArrayList in NumPy Array: ", element)
Mune kodhi snippet iri pamusoro, isu tinotanga kupinza iyo NumPy raibhurari se np. Kutevera izvi, isu tinogadzira NumPy array inonzi array iyo ine zvinhu 1, 2, 3, 4, uye 5. Kuti tiwane chinhu chimwe chete, tinoshandisa array indexing. Indekisi inotangira pa0, saka kuti tiwane chinhu chechitatu (chine index ye2), tinoshandisa hurongwa[2]. Izvi zvinodzosera kukosha 3, iyo inochengetwa mu element kuchinja uye kudhindwa kune console.
Kushanda neNumPy Arrays
NumPy arrays chinhu chakakosha cheNumPy raibhurari. Ivo vanopa inoshanda uye nekukurumidza nzira yekubata data kana ichienzaniswa neyechinyakare Python zvinyorwa. Iyo ndarray chinhu chinoita kuti zvive nyore kuita masvomhu mashandiro uye kugadzirisa zvakare data sezvinodiwa.
- Kugadzira arrays: Pane nzira dzinoverengeka dzekugadzira arrays muNumPy. Dzimwe nzira dzakajairika dzinosanganisira np.array(), np.zeros(), uye np.ones(). Aya mabasa anobatsira kutanga mitsara ine zviyero zvinodiwa uye rudzi rwe data.
- Kuwana zvinhu: Zvinhu zvimwechete zvinogona kuwanikwa uchishandisa indexing, nepo zvinhu zvakawanda kuburikidza nekucheka kana fancy indexing.
- Kudzoreredza uye kugadziridza: NumPy arrays anogona kuumbwa patsva uye kugadziridzwa nerubatsiro rwe gadzirisa () uye resize() mabasa. Aya mabasa anobatsira kushandura zviyero zvearray pasina kushandura data.
Python uye Maraibhurari Ayo Akawanda
Python yakawana mukurumbira wakakura nekufamba kwemakore, zvakanyanya nekuda kwekureruka kwayo uye kuverenga. Kunze kwekureruka kwayo kwekushandisa, Python inopa huwandu hwakawanda hwemaraibhurari uye mamodule anoita kuti iwedzere kushanda uye ine simba.
Mamwe maraibhurari anozivikanwa ePython anosanganisira:
- numpy: Sezvambotaurwa, NumPy ndiyo yekuenda-kusarudzo yenhamba nesainzi computations.
- pandas: Raibhurari yakagadziridzwa yakanangana nekunyengedza nekuongorora data, ichipa DataFrame uye Series data zvimiro zvekubata data.
- matplotlib: Raibhurari inoshandiswa kugadzira 2D zvirongwa uye magirafu kubva kwakasiyana dhatasets, ichipa akawanda maitiro ekugadzirisa.
- SciPy: Raibhurari yakavakirwa paNumPy, iyo inopa humwe mashandiro esainzi uye tekinoroji komputa.
Simba rePython nehuwandu hwayo hwakakura hwemaraibhurari akaita kuti ive chishandiso chakakosha munzvimbo dzakasiyana siyana, kusanganisira kuvandudzwa kwewebhu, kuongororwa kwedata, hungwaru hwekugadzira, uye kudzidza kwemichina. Nekugona aya maraibhurari, vagadziri vanogona kunyatsogadzirisa matambudziko akaomarara uye kugadzira ekucheka-kumucheto mhinduro dzepasirese fashoni uye kupfuura.
