Icandelo Inqununu

Icandelo oyintloko isekelwe uzama ukucacisa inqanaba ubuninzi mahluko kwindawo ezithile ezahlukeneyo, nomntu nelungiselelwe echazwe kungqinelwano matrix oxwesileyo. Kukho enye indlela, olusekelwe kucazululo factor, ezijolise nokuphumeza isilinganiselo isizalo ukuhlanganisa usebenzisa inani elithile lemiba (ngaphantsi kwenani kwangaphambili eziguquguqukayo), kodwa ngeendlela kelelo kakhulu yahlukile indlela yokuqala ecetywayo.

Ngenxa yoko, indlela uhlalutyo factor onokuchaza unxulumano phakathi izinto ngokwabo, nomntu kwi iziqalelo uhlobo ukuhlanganisa matrix ngaphandle kwakhe kwikonw ngekona.

Ngokusekelwe ukusetyenziswa esebenzayo, zama ukuqonda imfuneko ukusetyenziswa indlela ethile. Uhlalutyo Factor kusetyenziswa xa kukho umdla kubaphandi ukufunda ubudlelwane phakathi kwezinto, uhlalutyo icandelo esiyintloko kusetyenziswa xa imfuneko ukunciphisa umlinganiselo data, kwaye ubukhulu encinane into efunekayo nentsingiselo yawo.

Ngenxa yamava ethu, sinako ukubona ukuba iindlela analysis factor usebenzisa inani elikhulu ngokwaneleyo kokuma. Le mali kufuneka ube umyalelo sezingeni eliphezulu ngaphezu eziliqela ezichongiweyo.

Icandelo Inqununu zithandwa kakhulu kuphando urhwebo, njengoko ingasetyenziswa phambi multicollinearity idatha engumthombo. Kwinkqubo zeekhweshine lwazi ziqulathe imibuzo efanayo, kwaye iimpendulo kubo yaye ndiza zihambelane nemithetho-siseko multicollinearity.

Icandelo Inqununu Kuyacetyiswa ukuqwalasela iseti neziphawuli kufuneka ukuba umphandi Uyabanyathelisa pre-ukhetho yeekhomponenti okanye izinto. Eyona ibalulekileyo kwezi ezi eigenvalues zokuvakalisa umgangatho kwiintsali yezahlukileyo zicacisiwe yile factor. Kukho omnye ulawulo obalulekileyo ubhontsi, nto leyo iluncedo kakhulu ukuqikelela inani lemiba (izinto kufuneka logama nje kukho eigenvalues ngaphezu kwesinye). Lo mgaqo uyakwazi ukuchaza kancinci lula - i eigenvalues va isabelo yomahluko nganye ezinga malungu abantu eziguquguqukayo obucacisa zinto, kwaye kwimeko kunene iyunithi wayo ukuba kufuneka baveze ezo nisikwe equlathe ngaphezu kwesinye variable.

Kuyimfuneko kwakhona ukuba kulawula "eigenvalues ngamnye" ukucacisa - enokwehla, kunye nemfuneko ukusetyenziswa yayo kumiselwa kuphela uphando. Hi xikombiso, le eigenvalue unalo ixabiso ngaphantsi kwe umanyano, kodwa kungenxa ukusasazeka, isasazwe phakathi kwezinto. Enye abanezakhono endle lorhwebo kubaluleke kakhulu ukuba imiba segmentation ezichongiweyo baba ingqiqo enkulu. Ke ezo zinto, equlathe eigenvalues angaphezu kwesinye, kodwa musa i intsingiselo nenjongo, ukuba azithathelwa ngqalelo. Kwaye kusenokuba kukho imeko kakhulu okwahlukileyo.

Omnye umba obalulekileyo malunga nokusetyenziswa ngendlela ebonakalayo iindlela Uhlalutyo factor - umbuzo ujikeleziso. Ingathatyathwa okukhetha nokujikeleziswa. Eyona uthandwayo kubo - indlela varimax. Oku kusekelwe kwinqanaba ubuninzi ukuchithachitheka ezahlukeneyo kwi into ngamnye. Le ndlela kuyanceda ukufumana ujikelezo, apho ezinye izinto ezi amaxabiso aphezulu, ngoxa abanye - phantsi ngokwaneleyo akwiqela ngamnye ngamnye.

Enye indlela ujikelezo - kvartimaks, kuyanceda ukufumana kujikelezo ethile, apho imiba ye-bume nganye ngamnye ukuba imithwalo zombini ephantsi phezulu.

ekvimaks indlela ujikeleza kwizibhambathiso phakathi kweendlela ezimbini kuxoxwe ngasentla.

Zonke ezi iindlela orthogonal enamazembe ngokufanayo nkqo, usebenziso zabo umkhondo akukho unxulumano phakathi imiba ngamnye.