Iziseko zoCwangciso lweDatha

Kwihlabathi lanamhlanje ledijithali, idatha ikuyo yonke indawo. Zingamandla aqhuba phantse zonke izigqibo ezicwangcisiweyo, nokuba ziinkampani ezinkulu okanye iinkampani eziqalwayo. Nangona kunjalo, ngaphambi kokuba le datha isetyenziswe ngokufanelekileyo, kufuneka icocwe kwaye ihlalutywe. Kulapho uqeqesho lwe-OpenClassrooms "Coca kwaye uhlalutye iDatha yakho" luza kudlala.

Olu qeqesho lubonelela ngentshayelelo ebanzi kwiindlela eziyimfuneko zokucoca idatha. Ijongana nemingeni eqhelekileyo efana nexabiso elilahlekileyo, iimpazamo zokungena, kunye nokungahambelani okunokuthi kuphazamise uhlalutyo. Ngee-tutorials-on-on-on kunye ne-case studies, abafundi bakhokelwa kwinkqubo yokuguqula idatha ekrwada ibe yimibono enokwenzeka.

Kodwa akuphelelanga apho. Nje ukuba idatha icocekile, uqeqesho lungena kuhlalutyo lokuhlola. Abafundi bafumanisa indlela yokuphonononga idatha yabo kwii-engile ezahlukeneyo, iintsingiselo ezivezwayo, iipateni kunye nokuqonda ebekunokuthi kanti bekuphosiwe.

UBaluleko oluBalulekileyo lokuCocwa kweeNkcukacha

Nayiphi na inzululwazi yedatha iya kukuxelela: uhlalutyo lulungile kuphela njengedatha esekelwe kuyo. Kwaye ngaphambi kokuba uhlalutyo lomgangatho lunokwenziwa, kunyanzelekile ukuba kuqinisekiswe ukuba idatha icocekile kwaye ithembekile. Kulapho ukucocwa kwedatha kungena khona, into ehlala ijongelwa phantsi kodwa ibaluleke kakhulu kwisayensi yedatha.

I-OpenClassrooms "Coca kwaye uhlalutye i-Dataset Yakho" ikhosi ibonisa imingeni eqhelekileyo abahlalutyi abajongene nayo xa besebenza kunye neeseti zedatha yehlabathi. Ukusuka kumaxabiso alahlekileyo ukuya kwiimpazamo zokungena, ukungangqinelani kunye nokuphinda-phinda, idatha ekrwada ayifane ilungele ukuhlalutya nje ukuba ifunyenwe.

Uya kwaziswa kubuchule kunye nezixhobo zokubona nokulawula ezi mpazamo. Ingaba ngokuchonga iintlobo ezahlukeneyo zeempazamo, ukuqonda impembelelo yazo kwi-analytics yakho, okanye ukusebenzisa izixhobo ezifana nePython ukucoca ngokufanelekileyo idatha yakho.

Kodwa ngaphaya kobuchule, yintanda-bulumko efundiswa apha: yokubaluleka kobungqongqo kunye nengqalelo kwiinkcukacha. Ngenxa yokuba impazamo engabonwayo, kungakhathaliseki ukuba incinane kangakanani na, inokugqwetha uhlalutyo olupheleleyo ize ikhokelele kwizigqibo eziphosakeleyo.

Ukuntywila nzulu kuHlahlelo lweDatha yoHlolo

Emva kokuqinisekisa ukucoceka kunye nokuthembeka kwedatha yakho, inyathelo elilandelayo kukuphonononga nzulu ukukhupha ukuqonda okubalulekileyo. Uhlalutyo lweDatha yoHlolo (EDA) lelo nyathelo libalulekileyo ekutyhileni iintsingiselo, iipateni, kunye nezinto ezingaqhelekanga kwidatha yakho, kwaye ikhosi ye-OpenClassrooms ikukhokela kule nkqubo inika umdla.

I-AED ayiloluhlu nje lwamanani okanye iigrafu; yindlela yokuqonda ulwakhiwo kunye nobudlelwane phakathi kwedatha yakho. Uya kufunda ukubuza imibuzo efanelekileyo, usebenzise izixhobo zokubala ukuze uyiphendule, kwaye utolike iziphumo kumxholo onentsingiselo.

Ubuchwephesha obunjengokusasazwa kwedatha, uvavanyo lwe-hypothesis, kunye nohlalutyo lwe-multivariate luya kugutyungelwa. Uya kufumanisa ukuba indlela nganye inokutyhila njani imiba eyahlukeneyo yedatha yakho, ibonelela ngombono obanzi.

Kodwa ngaphezu kwayo nantoni na, eli candelo lekhosi ligxininisa ukubaluleka kokufuna ukwazi kwisayensi yedatha. I-AED ifana nokuphonononga njengoko iluhlalutyo, kwaye ifuna ingqondo evulekileyo yokufumanisa ukuqonda okungalindelekanga.