Zofunikira pakukonza Data
M'dziko lamakono la digito, deta ili paliponse. Ndiwo omwe amatsogolera pafupifupi zisankho zonse zanzeru, kaya makampani akuluakulu kapena oyambitsa nzeru. Komabe, deta iyi isanayambe kugwiritsidwa ntchito bwino, iyenera kutsukidwa ndi kufufuzidwa. Apa ndipamene maphunziro a OpenClassrooms "Yeretsani ndi Kusanthula Ma Data Anu" amabwera.
Maphunzirowa amapereka chidziwitso chokwanira cha njira zofunika zoyeretsera deta. Imathetsa mavuto omwe anthu ambiri amakumana nawo monga zikhalidwe zomwe zikusowa, zolakwika zolowera, ndi zosagwirizana zomwe zingasokoneze kusanthula. Ndi maphunziro apamanja ndi maphunziro a zochitika, ophunzira amatsogozedwa ndi njira yosinthira deta yaiwisi kukhala zidziwitso zotheka.
Koma si zokhazo. Deta ikayeretsedwa, maphunziro amalowa muunthu wofufuza. Ophunzira amapeza momwe angayang'anire deta yawo mosiyanasiyana, kuwulula zomwe zikuchitika, mawonekedwe, ndi kuzindikira zomwe mwina akanaphonya.
Kufunika Kofunikira Kwambiri Kuyeretsa Data
Wasayansi aliyense wa data angakuuzeni: kusanthula kumangofanana ndi zomwe zakhazikitsidwa. Ndipo musanayambe kusanthula khalidwe, m'pofunika kuonetsetsa kuti deta ndi yoyera ndi yodalirika. Apa ndipamene kuyeretsa deta kumabwera, chinthu chomwe nthawi zambiri sichimaganiziridwa koma chofunikira kwambiri pa sayansi ya data.
Kosi ya OpenClassrooms ya "Yeretsani ndi Kusanthula Chida Chanu" ikuwonetsa zovuta zomwe akatswiri amakumana nazo akamagwira ntchito ndi ma dataset apadziko lonse lapansi. Kuchokera pamakhalidwe osowa ndi zolakwika zolowetsa mpaka kusagwirizana ndi kubwereza, deta yaiwisi nthawi zambiri imakhala yokonzeka kuyesedwa ikangopezedwa.
Mudzadziwitsidwa za njira ndi zida kuti muwone ndikuwongolera zolakwika izi. Kaya ndikuzindikira mitundu yosiyanasiyana ya zolakwika, kumvetsetsa momwe zimakhudzira ma analytics anu, kapena kugwiritsa ntchito zida ngati Python kuyeretsa bwino deta yanu.
Koma kupyola njirazo, ndi filosofi yomwe imaphunzitsidwa apa: kufunika kokhazikika komanso kusamala mwatsatanetsatane. Chifukwa cholakwa chosadziwika, ngakhale chaching'ono chotani, chikhoza kupotoza kusanthula kwathunthu ndikupangitsa malingaliro olakwika.
Phunzirani Kwambiri mu Kusanthula kwa Data Yofufuza
Pambuyo poonetsetsa ukhondo ndi kudalirika kwa deta yanu, sitepe yotsatira ndikubowola mu izo kuti atenge zidziwitso zamtengo wapatali. Exploratory Data Analysis (EDA) ndiye gawo lofunikira kwambiri pakuvumbulutsa zomwe zikuchitika, machitidwe, ndi zolakwika mu data yanu, ndipo maphunziro a OpenClassrooms amakuwongolerani munjira yosangalatsayi.
AED si mndandanda wa ziwerengero kapena ma graph; ndi njira yodziwikiratu kuti mumvetsetse kapangidwe kanu ndi maubwenzi omwe ali mkati mwazosunga zanu. Muphunzira kufunsa mafunso oyenera, kugwiritsa ntchito zida zowerengera kuti muwayankhe, ndikutanthauzira zotsatira zake m'njira yomveka.
Njira monga kugawa deta, kuyesa kwa hypothesis ndi kusanthula kwa multivariate zidzaphimbidwa. Muphunzira momwe njira iliyonse ingasonyezere mbali zosiyanasiyana za deta yanu, ndikupereka chithunzithunzi chokwanira.
Koma koposa zonse, gawo ili la maphunzirowa likugogomezera kufunikira kwa chidwi mu sayansi ya data. DEA ndiyofufuza mochuluka monga momwe imakhalira kusanthula, ndipo imafunikira malingaliro otseguka kuti awulule zidziwitso zosayembekezereka.
