Kugonana Kufufuza Kugwirizana pakati pa Mitundu
Kugonjetsa ndi njira yosungiramo zinthu zamagetsi zomwe zimagwiritsidwa ntchito pofotokoza zamtundu wazinthu zamtunduwu (zomwe zimatchedwanso machitidwe opitirira ), kupatsidwa dataset yapadera. Mwachitsanzo, kuponderezedwa kungagwiritsidwe ntchito kufotokozera mtengo wa mankhwala kapena ntchito, kupatsidwa zosiyana zina.
Kugonjetsedwa kumagwiritsidwa ntchito m'mafakitale osiyanasiyana pofuna kupanga malonda ndi malonda, kulingalira zachuma, kuwonetsa zachilengedwe komanso kusanthula zochitika.
Kugonjetsa Vs. Kulemba
Kugonjetsa ndi kusinthasintha ndi njira zamagetsi zomwe zimagwiritsidwa ntchito kuthetsa mavuto ofanana, koma nthawi zambiri zimasokonezeka. Zonsezi zimagwiritsidwa ntchito polosera, koma kugwiritsiridwa ntchito kumagwiritsiridwa ntchito kulongosola zamtengo wapatali kapena kupitirizabe pamene gulu likugawa deta muzinthu zosiyana.
Mwachitsanzo, kugwiritsidwa ntchito kumagwiritsidwa ntchito kufotokozera mtengo wa nyumba pogwiritsa ntchito malo ake, mapazi apamwamba, mtengo wogulitsidwa kotsiriza, mtengo wa nyumba zofanana, ndi zina. Chiwerengerochi chikanakhala kuti mutha kukonzekera nyumba kumagulu, monga kusamalidwa, kukula kapena chiŵerengero cha umbanda.
Mitundu ya Njira Zowonongeka
Mtundu wosavuta komanso wokalamba wa regression ndizowonongeka moyenera kugwiritsidwa ntchito kulingalira mgwirizano pakati pa mitundu iwiri. Njira imeneyi imagwiritsa ntchito njira ya masamu yowongoka (y = mx + b). Mwachidule, izi zikutanthauza kuti, popatsidwa graph ndi Y ndi X-axis, ubale pakati pa X ndi Y ndi mzere wolunjika ndi zochepa zochepa. Mwachitsanzo, tingaganize kuti, chifukwa cha kuchuluka kwa chiwerengero cha anthu, chakudya chochuluka chidzawonjezeka mofanana - izi ziyenera kukhala ndi mgwirizano wolimba pakati pa ziwerengero ziwirizo. Kuti muwone izi, ganizirani graph yomwe Y-axis ikuwongolera kuwonjezeka kwa chiwerengero, ndipo mzere wa X umayang'ana kupanga chakudya. Pamene chiwerengero cha Y chikuwonjezeka, chiwerengero cha X chidzawonjezeka pamtunda womwewo, kupanga mgwirizano pakati pawo molunjika.
Njira zowonjezereka, monga kuponderezana kwambiri, kufotokozera mgwirizano pakati pa mitundu yosiyanasiyana - mwachitsanzo, kodi pali mgwirizano pakati pa ndalama, maphunziro ndi komwe munthu amasankha kukhala? Kuwonjezereka kwa mitundu yosiyanasiyana kumabweretsa zovuta za kuneneratu. Pali mitundu yambiri ya njira zowonongeka zowonjezereka kuphatikizapo miyezo, yowoneka bwino, yowoneka bwino komanso yowonjezera, aliyense ali ndi ntchito yakeyo.
Panthawiyi, ndikofunika kumvetsetsa zomwe tikuyesera kuti tidziwitse (zosinthika kapena zowonongedwa) ndi deta yomwe tikugwiritsa ntchito kuti tipeze maulosi (zosiyana kapena zosintha). Mu chitsanzo chathu, tikufuna kufotokozera malo omwe munthu amasankha kuti akhale (ndalama zomwe zatsimikiziridwa zosinthidwa) zomwe amapatsidwa ndi maphunziro (zonse zosintha).
- Kugonjetsa kwapakati pafupipafupi kumaganizira mitundu yonse yodzinenera nthawi yomweyo. Mwachitsanzo 1) Kodi pali mgwirizano wotani pakati pa ndalama ndi maphunziro (owonetsetsa) ndi kusankha malo oyandikana nawo (kunenedweratu); ndi 2) Kodi munthu aliyense payekha amadzipereka bwanji pa chiyanjano chimenecho?
- Kugonjetsa kawirikawiri kumayankha funso losiyana. Kugwiritsa ntchito njira zochepetsera zochitika zowonongeka kumagwiritsira ntchito njira zomwe zimagwiritsidwa ntchito bwino pofuna kufotokozera zosankhidwazo - kutanthawuza kuti chitsanzo choyendetsa bwino chikuyesa ndondomeko ya kufunika kwa mitundu yoyenera ndikusankha gawo loyenera. Vuto la vutoli limagwiritsira ntchito "masitepe" kuti apange chiyanjano chofanana. Chifukwa cha kuponderezedwa kwamtunduwu, zowonongeka zonse sizikhoza kuwonekera ngakhale mu mgwirizano womaliza.
- Kugonjetsa kwachikhalidwe , monga njira yowonongeka, ndiyo njira yofanana, koma zotsatilazi zimalowetsedweratu mu dongosolo lomwe lidatchulidwa kale, mwachitsanzo, njira yosinthidwayo ilibe dongosolo lokhazikitsa lowetsani zotsatila. Izi zimagwiritsidwa ntchito kawirikawiri pamene munthu amene amapanga equation equation ali ndi luso wodziwa zamunda.
- Regression regwise ndi ofanana ndi stepwise koma amafufuza seti ya zosiyanasiyana kusiyana zosiyanasiyana.