I-Master Data Analysis nge-Linkedin Learning

Ukuhlaziywa kwedatha yokufunda kubalulekile ezweni lanamuhla ledijithali. U-Omar Souissi unikeza ukuqeqeshwa okuphelele ukuze abe yingcweti yalo mkhakha. “Ukuhlaziywa Kwedatha Yokufunda: Izisekelo ezi-1” kuyisifundo esibalulekile kuwo wonke umuntu.

Ukuqeqeshwa kuqala ngencazelo yokuhlaziywa kwedatha. UMnu Souissi ucacisa indima yomhlaziyi wedatha. Lesi singeniso sibalulekile ekuqondeni izinselelo zomsebenzi. Bese ihlola umqondo wesisebenzi sedatha. Lesi sigaba sinweba umbono wezindima zedatha. Indima ngayinye ibalulekile empumelelweni yethimba ledatha nezibalo.

Umqeqeshi ube esethula ubungcweti besayensi yedatha eyahlukene. Lokhu kwehlukahlukana kukhombisa ukunotha komkhakha. Amakhono ososayensi wedatha anemininingwane, enikeza umbono ocacile wezidingo.

Ukuqonda idatha kuyinsika yokuqeqesha. Izinkambu nezinhlobo zedatha ziyafundiswa. Lolu lwazi lubalulekile ukuze ulawule idatha ngempumelelo.

Iphinde ihlanganise ukusetshenziswa kwemisebenzi nemisebenzi. Lawa mathuluzi abalulekile ekudaleni idatha entsha. I-syntax eyisisekelo nemiyalelo ichazwa ngokucacile.

Izivivinyo ezingokoqobo nezinselele

Ukuqeqeshwa kuhlanganisa nezinselele ezingokoqobo, njengokufunda i-SQL. Lezi zivivinyo ziqinisa amakhono azuziwe. Izixazululo ezinikeziwe zisiza ukuhlanganisa ukufunda. UMnu. Souissi uqondisa abafundi ekuchazeni idatha ekhona. Ukuthola nokuhlanza idatha kuyisici esibalulekile. Ibonisa indlela yokuqonda idatha kanye nokuhamba komsebenzi okuhlobene.

Ukujoyina kungesinye isihloko esibalulekile. Ukuqeqeshwa kuchaza ukusetshenziswa kwabo ekuhlaziyeni idatha. Lawa makhono abalulekile ekuxhumaniseni imithombo yedatha eyahlukene. I-CRIP-DM methodology yethulwa. Le ndlela ihlela ukuhlaziya idatha. Amathiphu ayabiwa ukuze kugwenywe amaphutha ajwayelekile.

I-Web scraping nge-Excel yisihloko esisha. Sikubonisa indlela yokuhlanganisa idatha ye-ETL. Ukuhlanzwa kwedatha ngamamakhro e-Excel kanye Nombuzo Wamandla nakho kuhlanganisiwe.

Ukwenza imodeli yedatha nge-Power Pivot kuyikhono elithuthukile. Ukuqeqeshwa kweseka abafundi ngokusebenzisa izinkomba zokusebenza ezibalulekile. Lawa mathuluzi abalulekile ekuhlaziyeni idatha okusebenzayo.

Sengiphetha, lokhu kuqeqeshwa kuwumhlahlandlela ophelele wawo wonke umuntu ofuna ukuba yingcweti ekuhlaziyeni idatha. Inikeza isisekelo esiqinile sokuhlola nokusetshenziswa kwedatha ezimweni ezihlukahlukene zobungcweti.

Nquma Ulimi Lwedatha: Okhiye Bokuhlaziya Okusebenzayo

Ulimi lwedatha luwukhiye wezibalo zesimanje. Ukuqonda lolu limi kuvula iminyango yokuqonda okubalulekile. Lesi sihloko sihlola okuyisisekelo kokukhipha amakhodi ngempumelelo.

Ukuhlaziywa kwedatha kuqala ngokuqonda izinhlobo zedatha. Uhlobo ngalunye lunezici zalo kanye nokusetshenziswa kwalo. Lokhu kuqonda kubalulekile ekuhlaziyeni okufanelekile.

Ukusebenza kwedatha eyisisekelo kungenye insika. Kubandakanya ukuhlunga, ukuhlunga kanye nokuhlanganisa. Ukwenza kahle le misebenzi kukuvumela ukuthi ulawule idatha kalula.

Imisebenzi ethuthukisiwe, njengezibalo zezibalo, ibalulekile. Zembula izitayela namaphethini. Le misebenzi iguqula idatha eluhlaza ibe imininingwane engasebenza.

Ukutolika idatha kuwubuciko. Ukwazi ukufunda nokuqonda idatha kuyimpahla. Leli khono libalulekile ukuze ufinyelele iziphetho ezinokwethenjelwa.

Ukubukwa kwedatha kudlala indima enkulu. Baguqula idatha eyinkimbinkimbi ibe imidwebo eqondakalayo. Lokhu kubonwa kwenza kube lula ukuxhumana ngemiphumela.

Ukumodela idatha kuyisinyathelo esithuthukisiwe. Kubandakanya ukusetshenziswa kwamathuluzi afana ne-Power Pivot. Lawa mathuluzi asiza ukudala amamodeli abikezelayo kanye nokuhlaziya okujulile.

Ukuqopha ulimi lwedatha kuyikhono eliyigugu. Ivumela idatha ukuthi iguqulwe ibe izinqumo ezinolwazi. Emhlabeni oqhutshwa idatha, lobu buciko buyinto eyinhloko yanoma yimuphi uchwepheshe.

Amathrendi Kusayensi Yedatha: Lokho Wonke Uchwepheshe Odinga Ukukwazi

Isayensi yedatha ithuthuka ngokushesha, iletha amathuba amasha. Ubuhlakani bokwenziwa nokufunda komshini kulawula indawo. Ukuhlanganiswa kwabo kwisayensi yedatha kuvula amathuba angapheli. Lokhu kuhlanganiswa kuyisishayeli sokusungula izinto ezintsha.

Idatha enkulu iyaqhubeka ikhula ngokubaluleka. Ikhono lokuphatha amasethi amakhulu edatha libalulekile. Lokhu kuphatha kwenza kube nokwenzeka ukwembula imininingwane efihliwe. Ukuzenzakalela ekuhlaziyeni idatha nakho kuyazuza. Amathuluzi azenzakalelayo akhulisa ukusebenza kahle futhi anciphisa amaphutha. Lokhu okuzenzakalelayo konga isikhathi esibalulekile.

Amakhono okubona idatha adingeka kakhulu kunangaphambili. Bavumela idatha eyinkimbinkimbi ukuthi yethulwe ngendlela eqondakalayo. Lawa makhono abalulekile ekuxhumaneni. Isayensi yedatha yezokuziphatha isiba isihloko esishisayo. Ochwepheshe kufanele baqaphele imithelela yesimilo somsebenzi wabo. Lokhu kuqwashisa kubalulekile ekusebenzeni ngendlela efanele.

Ukufunda ngokujulile kuwumkhuba oqhubekayo. Inikeza amakhono athuthukile ezibalo. Ukwenza kahle le nqubo kuyimpahla yochwepheshe. Isayensi yedatha iguqula wonke umkhakha. Kusukela kwezempilo kuye kwezezimali, umthelela wayo usemhlabeni wonke. Lolu shintsho luwuguquko ekuthathweni kwezinqumo.

Amakhono esayensi yedatha asephenduke into ehlukahlukene. Abasagcini kososayensi bedatha. Bonke ochwepheshe bangazuza kulawa makhono.

Ukuhlala unolwazi lwakamuva ngamathrendi akamuva kubalulekile. Ezweni eliqhutshwa idatha, lolu lwazi lubalulekile.

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