Emhlabeni wanamuhla, ukusebenzisana nedatha sekuyikhono elibalulekile konjiniyela nabahlaziyi ngokufanayo. Umtapo owodwa onamandla osiza ekwenzeni ukuhlaziya idatha ngu pandas, eyakhiwe phezu kolimi lokuhlela lwePython. Kulesi sihloko, sizobheka indlela yokufaka ama-pandas kuPython usebenzisa I-Git, baqonde ukusebenza kwelabhulali, futhi bahlole imisebenzi ehlukahlukene ezosiza emisebenzini yethu yokuhlaziya idatha. Ngakho-ke, ake sicwilise kukho.
AmaPandas
Kuxazululiwe: buyekeza ifayela izikhathi eziningi kuma-panda
Ukubuyekeza ifayela izikhathi eziningi kuma-Panda kuyisidingo esibalulekile ngenkathi usebenza namasethi edatha amakhulu emkhakheni wokuhlaziya idatha, ukukhohlisa idatha, nokuhlanza idatha. I-Pandas iwumtapo wezincwadi we-Python osetshenziswa kakhulu ohlinzeka ngezakhiwo zedatha okulula ukuzisebenzisa namathuluzi okuhlaziya idatha avumela abasebenzisi ukuthi babhekane namafomethi ahlukahlukene wefayela njenge-CSV, i-Excel, ne-SQL yolwazi.
Inkinga enkulu esizogxila ekubhekaneni nayo kulesi sihloko ukuthi ungabuyekeza kanjani ifayela izikhathi eziningi usebenzisa umtapo wezincwadi wePandas ePython. Lokhu kuhlanganisa ukufunda idatha, ukwenza izinguquko ezidingekayo noma izinguquko, bese ubhala idatha uyibuyisele efayeleni. Sizocubungula ingxenye ngayinye yenqubo, sichaze ikhodi ehilelekile, futhi sixoxe ngemitapo yolwazi embalwa nemisebenzi ehambisana nale nkinga.
Kuxazululiwe: i-python pandas hambisa ikholomu yokugcina endaweni yokuqala
Umtapo wezincwadi we-pandas we-Python ungumtapo wezincwadi onamandla futhi oguquguqukayo wokukhohlisa nokuhlaziya idatha, ikakhulukazi lapho usebenza nedatha yethebula ngesimo samafreyimu edatha. Umsebenzi owodwa ovamile lapho usebenza nozimele bedatha ukuhlela kabusha uhlelo lwekholomu ukuze lulingane nezidingo ezithile. Kulesi sihloko, sizogxila endleleni yokususa ikholomu yokugcina endaweni yokuqala kuhlaka lwedatha ye-pandas. Lokhu kungaba usizo ikakhulukazi uma ufuna ukuletha ukunaka kumakholomu athile, ikakhulukazi uma isethi yedatha inenani elikhulu lamakholomu.
Kuxazululiwe: I-Fernet%3A Ayikwazi ukususa ukubhala ngezinhlamvu ezilondolozwe ku-csv ngama-panda
I-Fernet iwumtapo wezincwadi wokubethela we-symmetric e-Python ohlinzeka ngokubethela okuphephile nokusebenziseka kalula kwedatha ebucayi. Ikesi elilodwa elivamile lokusebenzisa i-Fernet ukubethela idatha ngaphambi kokuyigcina kufayela le-CSV, ukuqinisekisa ukuthi abantu abagunyaziwe kuphela abangakwazi ukuyifinyelela. Kodwa-ke, ukususa ukubethela kwalezi zinhlamvu ezibethelwe kufayela le-CSV kungaba yinto ekhohlisayo, ikakhulukazi uma usebenzisa umtapo wezincwadi we-Pandas.
Kulesi sihloko, sizoxoxa ngesixazululo senkinga yokususa ukubethela kwezintambo ezilondolozwe kufayela le-CSV kusetshenziswa i-Fernet ne-Panda. Sizohlinzeka ngencazelo yesinyathelo nesinyathelo sekhodi, futhi sijule emisebenzini efanelekile kanye nemitapo yolwazi ehilelekile kule nqubo.
Kuxazululiwe: sebenzisa i-dict ukuze ungene esikhundleni sama-panda amanani angekho
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.
Ixazululiwe: indlela yokuguqula igama libe inombolo kuma-python pandas
Emhlabeni wanamuhla, ukukhohlisa nokuhlaziya idatha sekuyingxenye ebalulekile yezimboni ezihlukahlukene. Umsebenzi owodwa onjalo ovame ukwenzeka ukuguqula amagama abe izinombolo kumasethi wedatha. Lesi sihloko sizoxoxa ngokuthi umtapo wezincwadi onamandla wePython, ama-panda, ungasetshenziswa kanjani ukwenza lo msebenzi ngempumelelo. Sizohlola izinyathelo, ikhodi, nemiqondo ehilelekile ekuxazululeni le nkinga, siqinisekise ukuthi uyayiqonda inqubo futhi ungayisebenzisa kalula.
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: 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.