I-Python NumPy yilayibrari yomthombo ovulekileyo obonelela ngenkxaso enkulu, i-multi-dimensional arrays kunye ne-matrices, kunye noluhlu olubanzi lwemisebenzi yemathematika ukusebenza kwezi zakhiwo zedatha. Omnye umsebenzi onjalo ngu ascontiguousarray esebenzela injongo yokuguqula igalelo scalar okanye uluhlu kuluhlu oludityanisiweyo kwinkumbulo. Lo msebenzi udlala indima ebalulekileyo xa usebenza ngee-algorithms ezinzima ezifuna izibalo eziphezulu zokusebenza.
INumPy
Isonjululwe: IPython NumPy asscalar Function Umzekelo 02
Ithala leencwadi le-Python's NumPy sisixhobo esibalulekileyo esisetyenziswa ngabaphuhlisi kunye nabadwelisi benkqubo kwihlabathi lohlalutyo lwedatha, isayensi yedatha kunye nakwiinkalo ezahlukeneyo zesayensi. Ithala leencwadi leNumPy laziwa ngenkxaso yalo yoluhlu olubanzi kunye noluhlu olubanzi lwemisebenzi yezibalo. Phakathi kwale misebenzi, omnye umsebenzi othile obizwa ngokuba yi i-asscalar () idlala indima ebalulekileyo kwizicelo ezithile, ngakumbi xa isiza ekuguquleni uluhlu olunento enye kwixabiso le-scalar. Kule nqaku, siza kuxubusha ingcamango yomsebenzi we-asscalar, iimeko zokusetyenziswa kwayo, kwaye ubonise umzekelo wokubonelela ngesinyathelo ngesinyathelo inkcazo yekhowudi. Ngaphaya koko, siza kwazisa iiheader ezimbini ezinxulumeneyo ezixoxa ngemixholo ehambelanayo kunye namathala eencwadi ukuqonda okunzulu kwesi sihloko.
Isonjululwe: amaxabiso angekho ninzi awahlaziywayo
Kweli nqaku, siza kuphonononga umba wokuhlaziya amaxabiso e-NumPy kunye nokubonelela ngesisombululo esibanzi kule ngxaki. I-NumPy lithala leencwadi lePython elisetyenziswa ngokubanzi kuluhlu lokukhohlisa kunye nokusebenza kwe-arithmetic. Isebenza kakuhle kwaye inika umsebenzi oguquguqukayo. Ukuqonda inkqubo yokuhlaziya uluhlu lwe-NumPy kubalulekile kuye nawuphi na umphuhlisi osebenza ngedatha yamanani kwiPython.
Isonjululwe: imod yepython yoluhlu numpy
IPython, njengolwimi lwenkqubo oluguquguqukayo nolunamandla, ibonelela ngeelayibrari ezininzi kunye neemodyuli ukwenza imisebenzi ibe lula kubaphuhlisi. Elinye lamathala eencwadi athandwayo ngu INumPy. Lithala leencwadi elivulelekileyo elisetyenziswa kakhulu kwikhompuyutha yamanani nenzululwazi, uhlalutyo lwedatha, kunye nokufunda koomatshini. Ibonelela ngemisebenzi eluncedo eyahlukahlukeneyo ukwenza imisebenzi kuluhlu, ngakumbi kwinqanaba lemathematika kunye nealjebra yomgca. Kweli nqaku, siza kuxubusha Python NumPy ukulungiswa kwezintlu, igxile kwingxaki eyisombululayo, ukubaluleka kwemisebenzi ebandakanyekayo, kunye nokuhlalutya nzulu kwiikhowudi zesampulu zokuqonda ngcono.
Isonjululwe: Ukuguqulwa koluhlu lube kokubini kusetyenziswa iNumPy binary_repr
Kwihlabathi lanamhlanje elikhawulezayo, uhlalutyo lwedatha kunye nokukhohlisa kusentliziyweni yezicelo ezininzi eziqhekezayo. Esinye sezo zicelo kukuguqulwa koluhlu lube kokubini kusetyenziswa ithala leencwadi leNumPy elinamandla, elisetyenziswa ngokubanzi ukwenza imisebenzi yezibalo nenzululwazi ekwinqanaba eliphezulu, lematriki enemilinganiselo emininzi kunye nezinto ezinoluhlu. Kweli nqaku, siza kuphonononga ukuphunyezwa okusebenzayo kolu guqulelo sisebenzisa i-binary_repr umsebenzi ovela kwi-NumPy, ngelixa sikwabonelela ngenkcazo yesinyathelo ngesinyathelo sekhowudi ephantsi. Endleleni, siza kuxoxa ngamathala eencwadi anxulumeneyo kunye nemisebenzi enokuthi ngokufanayo incede ekusombululeni iingxaki ngaphakathi kobuqhetseba bedatha kunye nohlalutyo.
Isonjululwe: ungayifumana njani into enye kuluhlu lwe-arrayt kwi-numpy array
Kwilizwe lenkqubo, kubalulekile ukwazi indlela yokulawula nokuphatha idatha ngokufanelekileyo. Olunye ulwimi oludumileyo lwenkqubo oluvumela abaphuhlisi ukuba basebenze ngedatha ngokufanelekileyo Python. Ngenxa yokuguquguquka kwayo kunye namathala eencwadi amaninzi, iPython iye yaba yintandokazi phakathi kwabaphuhlisi kunye nososayensi bedatha. Elinye laloo thala leencwadi INumPy, ejongene nokusebenza kunye noluhlu kunye nokusebenza kwamanani. Kweli nqaku, siza kuphonononga indlela yokufumana into enye kwiArrayList kuluhlu lweNumPy, sixoxe ngamathala eencwadi kunye nemisebenzi esetyenzisiweyo, kwaye sijonge kwimbali yezi zixhobo zePython.
Isonjululwe: NumPy left_shift Code Xa amagalelo kunye ne-bit shift ingamanani
I-NumPy lithala leencwadi eliyimfuneko kuye nawuphi na umdwelisi wePython osebenza ngedatha yezibalo okanye yamanani. Inika uluhlu olunamandla kunye nobuchule bokukhohlisa bematrix. Omnye wemisebenzi eyaziwa kancinci ebonelelwa yiNumPy kukukwazi ukwenza imisebenzi ebukhali kwizinto zoluhlu. Oku kuquka umsebenzi weshifti ye-bitwise ekhohlo, enokusetyenziswa kumanani ngaphakathi koluhlu lweNumPy. Kweli nqaku, siza kuphonononga umsebenzi weNumPy left_shift kwaye sinikeze inyathelo ngenyathelo lesifundo sendlela yokusebenzisa lo msebenzi uluncedo.
Isonjululwe: NumPy bitwise_kunye Umzekelo Xa amagalelo ngamanani
I-NumPy yilayibrari eyimfuneko kuyo nayiphi na inzululwazi yedatha okanye umhlalutyi wamanani osebenza nePython, njengoko iqulethe imisebenzi eyahlukeneyo yezibalo eziphezulu kunye nezixhobo ezivumela ukubala amanani ngokufanelekileyo. Umsebenzi omnye onjalo, i bitwise_kunye, yenza isihlanganisi esilumkileyo phakathi kwamanani amabini egalelo okanye uluhlu, ikhupha isiphumo kwifomati yokubini. Eli nqaku liza kuxoxa ngokusetyenziswa kweNumPy bitwise_kunye umsebenzi xa usebenza ngamanani, ucacisa ukusebenza kwawo ngamanyathelo, kunye nokubonelela ngemizekelo yokuqonda ngakumbi.
Isonjululwe: Python NumPy column_stack Function Function with 2d array
I-Python NumPy lithala leencwadi elidumileyo elibonelela ngemisebenzi emininzi ephucukileyo yezibalo kwaye iyenza isebenze kakuhle kakhulu ngokusebenza ngeendlela ezininzi. Umsebenzi omnye onjalo oluncedo ngumsebenzi we-NumPy column_stack. Kweli nqaku, siza kujonga nzulu kwi-column_stack function kunye nesicelo sayo ekusebenzeni nge-2d arrays. Siza kuphonononga amathala eencwadi ahlukeneyo kunye nemisebenzi enxulumene nokusebenza kunye noluhlu lwePython.