Njira ziwerengero masamu. kusanthula mgwirizano

Gwiritsani ntchito kusanthula mawu angapo mgwirizano anayamba Pearson (Pearson) mu ntchito zake, chibwenzi kuchokera chaka cha 1908 panobe. Iye ananena kuti chitsanzo cha nthumwi kuchita kugulitsa malo. Mu zolemba zake pa nyumba Trade Katswiri anatsogolera chifukwa cha osiyanasiyana deta gwero la lililonse dongosolo payekha. Ndi zotsatira za ntchito Izo zimatengera chimene Chinthu anali kowonekera kwambiri pa mtengo wa ndikupeleka.

Analysis wa ambiri wotuluka anapereka zotsatira chidwi. The mtengo komaliza kufooketsedwa ndi zinthu zambiri, nthawi zina kutsogolera kuganiza paradoxical ndipo ngakhale bwino "mpweya", pamene nyumba ndi zinthu mkulu koyamba anagulitsa pa maola mtengo index.

Chitsanzo chachiwiri cha ntchito kusanthula izi wapatsidwa ntchito ogwira katswiri, amene wapatsidwa kudziwa ubwino wantchito. Vuto linali chakuti yogawa chofunika si zochuluka kwa wina, ndi mosamalitsa ndondomeko zake ntchito yeniyeni anachita. Zikamera wa ntchito zosiyanasiyana kuti ali pafupifupi ofanana zosinthika njira, amafuna review mwatsatanetsatane pa mlingo masamu.

Mu ziwerengero masamu, malo kwambiri unaperekedwa ku "mgwirizano kusanthula" gawo, pali ogwirizana njira zothandiza ntchito kuphunzira dependencies ataphimbidwa ndi lingaliro la mgwirizano. ubale awa anati pakati deta zopezera kufufuza zowerengera.

Mgwirizano kusanthula ntchito mwa kuchuluka yaikulu zolinga zitatu: kuthandauza za mgwirizano aone kuti pali wa mawonekedwe onse; yomanga Ziwerengero chizindikiro omwe sakudziwika kuti ali m'gulu la mgwirizano aone kuti pali; afufuze mgwirizano zowerengera malingaliro. Mu Pophunzira ubale amenewa amapezeka pakati pa peyala ya makhalidwe chifukwa kuzipenya experimental ndi chiwerengero cha zigawo (ambiri) lembani (x1, y1), ..., (xn, yn), potengera malo amene chiphunzitso mgwirizano asankhepo kuti mtengo umodzi Y pali ena Mwina kugawa, ngakhale kuti wina X amakhalabe amodzi.

The chifukwa Y zimadalira mtengo wa variable X, kudalira zimenezo zingadziŵike mwa malamulo zosiyanasiyana, yolondola zotsatira zimakhudza chikhalidwe ndi cholinga cha kusanthula kuzipenya. Lachitsanzo experimental zachokera maganizo ena amene ali chosavuta koma ndithu. The chikhalidwe yaikulu ndiyakuti mtengo wa chizindikiro X ukulamulidwa. zake amapatsidwa isanafike chiyambi cha zimenezo.

Ngati njira zimenezo, peyala ya zosintha amavutitsa ndi XY, ndi kusanthula mgwirizano ikuchitika mwa njira yomweyo, koma kumasulira zotsatira, imene timaphunzira kugwirizana kuphunzira zosintha mwachisawawa, ankagwiritsa ntchito ya kusanthula malumikizanidwe. njira Statistical simuli ndi mutu umenewu. Iwo kupeza ntchito pa moyo zosiyanasiyana za zochita za anthu.

Mu mabuku ambiri a sayansi kudziwa tangotchulawo njira wapeza ntchito lonse la liwu liniya mgwirizano kusanthula. Pakuti variable ndi X anagwiritsa ntchito mawu akuti regressor kapena amakangana ndi zosintha yozungulira Y-amatchedwanso criterial. terminology zimenezi zimasonyeza kuti masamu ubwenzi zosintha, koma osati investigative causal ubwenzi.

Mgwirizano kusanthula ndi njira ambiri kuti ntchito processing wa zotsatira za zosiyanasiyana kuzipenya. Thupi ndi kwachilengedwenso ntchito kuphunzira kudzera mwa njira iyi, izo akuyendera ndi chuma, ndi luso. Misa m'madera ena ntchito mgwirizano kusanthula chitsanzo. Analysis wa masiyanidwe, kapangidwe ka zinthu zatsopano, kusanthula zowerengera ntchito multidimensional limodzi ndi njira imeneyi kuphunzira.