Ezweni lokukhohlisa nokuhlaziya idatha, ukuphatha amanani ashodayo kuwumsebenzi obalulekile. AmaPandas, umtapo wezincwadi wePython osetshenziswa kakhulu, usivumela ukuthi siphathe kahle idatha engekho. Indlela eyodwa evamile yokubhekana namanani angekho ihilela ukusebenzisa izichazamazwi ukwenza imephu nokushintshanisa la manani. Kulesi sihloko, sizoxoxa ngokuthi angawasebenzisa kanjani amandla e-Pandas ne-Python ukusebenzisa izichazamazwi zokushintsha amanani angekho kudathasethi.
Python
Kuncane ongakwethula kuPython. Kwaziwa yibo bonke abathuthukisi.
Noma yini oyifunayo ingenziwa ngePython futhi lokhu, kanye nobulula nobulula bayo, kuyenze yaba ngolunye lwezilimi zokuhlela zenkanyezi namuhla. Ulimi oluthayiphiwe ngokuqinile olugxile entweni lapho kubaluleke kakhulu ukugcina ukufundeka kwekhodi.
Ulimi lwenkanyezi kusayensi yedatha, ukufunda ngomshini, ukufunda okujulile, nakho konke okuhlobene.
Kodwa usengakwazi ukwakha izinhlelo zokusebenza zewebhu, noma elinye ithuluzi ongalicabanga.
Kukhona izitolo zezincwadi zayo yonke into!!!
Kulesi sigaba sixazulula ezinye zezinkinga eziyinhloko umthuthukisi wePython avame ukubhekana nazo. Ngale ndlela indlela yokuba i-ninja dev ku-python iqinisekisiwe.
Kuxazululiwe: uziyeka kanjani izinsuku ze-pandas datetime
Imfashini nezinhlelo kungase kubonakale njengemihlaba emibili ehluke ngokuphelele, kodwa uma kuziwa ekuhlaziyweni kwedatha nokubikezela kwethrendi, kungahlangana kahle. Kulesi sihloko, sizohlola inkinga evamile yokuhlaziywa kwedatha embonini yemfashini: ukushiya izinsuku ezithile kudatha ye-pandas datetime. Lokhu kungaba usizo ikakhulukazi lapho uhlaziya amaphethini, amathrendi, nedatha yokuthengisa. Sizodlula encazelweni yesinyathelo nesinyathelo sekhodi, futhi sixoxe ngemitapo yolwazi ehlukahlukene kanye nemisebenzi ezosisiza ukuthi sifinyelele umgomo wethu.
Ixazululiwe: i-pandas yetafula kuya ku-postgresql
Emhlabeni wokuhlaziywa kwedatha kanye nokukhohlisa, omunye wemitapo yolwazi yePython edume kakhulu AmaPandas. Ihlinzeka ngamathuluzi anamandla ahlukahlukene okusebenza ngedatha ehlelekile, okwenza kube lula ukuyilawula, ukuyibona ngeso lengqondo nokuhlaziya. Omunye wemisebenzi eminingi umhlaziyi wedatha angase ahlangabezane nayo ukungenisa idatha kusuka ku- CSV ifayela ku-a I-PostgreSQL database. Kulesi sihloko, sizoxoxa ngendlela yokwenza lo msebenzi ngempumelelo nangempumelelo usebenzisa kokubili AmaPandas futhi ngc2 umtapo wolwazi. Sizophinde sihlole imisebenzi ehlukene kanye nemitapo yolwazi ehilelekile kule nqubo, sinikeze ukuqonda okuphelele kwesixazululo.
Kuxazululiwe: uchungechunge lwama-pandas lwengeza igama kuyo yonke into ochungechungeni
I-Pandas iwumtapo wezincwadi onamandla futhi ovumelana nezimo ku-Python, ovame ukusetshenziselwa ukukhohlisa idatha nemisebenzi yokuhlaziya. Enye yezingxenye ezibalulekile ngaphakathi kwePandas yi- Series into, eyenza amalungu afanayo anohlangothi olulodwa, anelebuli. Kulesi sihloko, sizogxila enkingeni ethile: ukwengeza igama kuyo yonke into ochungechungeni lwePandas. Sizohamba ngesixazululo, sixoxa ngekhodi isinyathelo ngesinyathelo ukuqonda ukusebenza kwayo kwangaphakathi. Ukwengeza, sizoxoxa ngamalabhulali ahlobene, imisebenzi, futhi sinikeze imininingwane ngezinkinga ezifanayo.
Kuxazululiwe: engeza amakholomu amaningi kuhlaka lwedatha uma engekho ama-panda
I-Pandas iyilabhulali ye-Python yomthombo ovulekile enikeza ukusebenza okuphezulu, izakhiwo zedatha okulula ukuzisebenzisa, namathuluzi okuhlaziya idatha. Sekuyinketho yonjiniyela nososayensi bedatha uma kukhulunywa ngokukhohlisa nokuhlaziya idatha. Esinye sezici ezinamandla ezinikezwe i-Pandas ukudala nokulungisa amafreyimu edatha. Kulesi sihloko, sizohlola inqubo yokwengeza amakholomu amaningi kuhlaka lwedatha uma engekho, sisebenzisa umtapo wezincwadi we-pandas. Sizohamba encazelweni yesinyathelo nesinyathelo sekhodi bese singena emisebenzini ehlobene, imitapo yolwazi, nezinkinga ongahlangabezana nazo endleleni.
Kuxazululiwe: faka ama-panda amakholomu amaningi
I-Pandas iwumtapo wezincwadi wePython onamandla futhi oguquguqukayo osetshenziswa kabanzi ukukhohlisa nokuhlaziya idatha. Imfuneko eyodwa evamile lapho usebenza ngedatha ukufaka amakholomu amaningi ku-DataFrame. Kulesi sihloko, sizohlola inqubo yokwengeza amakholomu amaningi ku-DataFrame sisebenzisa umtapo wezincwadi we-Pandas, sixoxe ngekhodi, futhi singene sijule emisebenzini ehlobene, amalabhulali, nemiqondo engakusiza ukuthi ube uchwepheshe we-Pandas.
Kuxazululiwe: ukuthola inombolo yamanani angekho kuma-panda
I-Pandas iyilabhulali yokukhohlisa yedatha yomthombo ovulekile esetshenziswa kabanzi yePython. Ihlinzeka ngezakhiwo zedatha nemisebenzi edingekayo ukuze kusetshenziswe ngempumelelo nokuhlaziya amasethi edatha amakhulu. Inkinga eyodwa evamile yedatha ososayensi nabahlaziyi abahlangabezana nayo ngenkathi besebenzisa ama-panda ukuphatha amanani ashodayo kudathasethi. Kulesi sihloko, sizohlola ukuthi singabala kanjani inani lamanani alahlekile ku-DataFrame ye-pandas sisebenzisa amasu ahlukahlukene, izincazelo zesinyathelo ngesinyathelo zekhodi, futhi sijule kweminye yemitapo yolwazi nemisebenzi ehilelekile ekuxazululeni le nkinga.
Kuxazululiwe: guqula isitembu sesikhathi sibe ama-panda enkathi
Emhlabeni wanamuhla, ukusebenza ngedatha yochungechunge lwesikhathi kuyikhono elibalulekile kunjiniyela. Omunye wemisebenzi evamile ukuguqula isitembu sesikhathi sibe enkathini ethile, njengedatha yangeviki noma yenyanga. Lo msebenzi ubalulekile ekuhlaziyeni okuhlukahlukene, njengokufunda amathrendi namaphethini kudatha. Kulesi sihloko, sizohlola ukuthi singasiguqula kanjani isitembu sesikhathi sibe isikhathi kudathasethi yochungechunge lwesikhathi sisebenzisa umtapo wezincwadi wePython onamandla, iPandas. Sizophinde singene sijule kukhodi, sihlole imitapo yolwazi nemisebenzi ehilelekile kule nqubo, futhi siqonde ukubaluleka kwayo ekuxazululeni le nkinga.
I-Pandas iwumthombo ovulekile wokuhlaziya idatha nomtapo wolwazi wokukhohlisa, ohlinzeka ngemisebenzi eguquguqukayo nesebenza kahle kakhulu ukuze isebenze nedatha yochungechunge lwesikhathi. Kwenza umsebenzi wethu ube lula, unembile, futhi usebenze kahle.
Kuxazululiwe: hlunga wonke amakholomu kuma-panda
Emhlabeni wokuhlaziya idatha, ukuphatha amasethi edatha amakhulu kungaba umsebenzi onzima. Enye yezingxenye ezibalulekile zale nqubo ukuhlunga idatha ukuze uthole ulwazi olufanele. Uma kukhulunywa ngePython, umtapo wolwazi onamandla pandas uyeza ukuzosisiza. Kulesi sihloko, sizoxoxa uwahlunga kanjani wonke amakholomu ku-pandas DataFrame. Sizodlula encazelweni yesinyathelo nesinyathelo sekhodi futhi sinikeze ukuqonda okujulile kwemitapo yolwazi nemisebenzi engasetshenziswa ezinkingeni ezifanayo.