Yini esichazwa njengesono Coefficient ukuhlanganisa futhi ukubaluleka

Ezweni lethu, konke kuhlobene, endaweni ethile kubonakale ngokubona okubonakala ngeso lenyama, futhi kwezinye izimo abantu alazi mayelana nokuba khona kwamakamu ubuhlobo obunjalo. Noma kunjalo, izibalo, lapho ebhekisela ezinhlekeleleni ukwencika mutual, ngokuvamile asebenzisa igama elithi "ukuhlanganisa". It ngokuvamile itholakala ezincwadini kwezomnotho. Ake sizame ukuthola ukuthi luwumgogodla lo mqondo, iziphi izici futhi kanjani humusha amagugu etholwe.

Umcabango

Ngakho, liyini ukuhlanganisa? Njengomthetho, leli gama lisikisela ubuhlobo kwezibalo emkhatsini nemingcele ezimbili noma ngaphezulu. Uma ushintsha ukubaluleka okukodwa noma ngaphezulu kubo, ke nakanjani kuthinta ukubaluleka nabanye. Sencazelo zezibalo force nawubuka ezifana Kuyinto evamile ukusebenzisa ezahlukahlukene. Kufanele kuqashelwe ukuthi esimweni lapho ushintsho eyodwa ipharamitha aliholeli olungokwemvelo kwesinye, kodwa umthelela noma yiziphi kwezibalo isici ipharamitha, ubuhlobo obunjalo akuyona ukuhlanganisa, kodwa nje kwezibalo.

History of the eside

Ukuze ukuqonde kangcono lokho ukuhlanganisa, ake sixoxe kabanzi indaba. Leli gama livele ku sibonga XVIII leminyaka ukuba imizamo Isazi French Zhorzha Kyuve. Lokhu usosayensi uye wazakhela okuthiwa "umthetho ukuhlanganisa" kwezitho izingxenye izidalwa eziphilayo, okuyinto ikuvumela ukuba ubuyisele ukubonakala i ezimbiwa phansi sesilwane sasendulo, kuphela ezinye izinsalela zayo zitholakale. Ngo izibalo, kwafika leli zwi ku ukusetshenziswa ngo-1886 onesandla ukukhanya izibalo English sezinto eziphilayo Galton. kakhulu Isihloko eside ithole Nakho ukuchazwa kwalo: hhayi nje hhayi ukuxhumana kuphela - «relation», futhi ubuhlobo nomunye into wabelane - «co-maqondana». Nokho, ukuchaza ngokucacile izibalo ukuthi lokhu ukuhlanganisa ayengakwenza kuphela umfundi UGalton, isazi sezinto eziphilayo nesazi sezibalo Karl Pearson (1857 - 1936). Nguye baletha ifomula eqondile ukubala okuza okuhambisanayo.

pair ukuhlanganisa

Ngakho sikubiza ubuhlobo phakathi kwamanani amabili ethize. Ngokwesibonelo, it is wafakazela ukuthi izindleko yonyaka yokukhangisa e-United States zihlobene usayizi omkhiqizo. Kulinganiselwa ukuthi phakathi kwalezi amagugu esikhathini kusuka 1956 kuya ku-1977 unkulunkulu ukuhlanganisa Coefficient kwaba 0,9699. Esinye isibonelo - inani ukuvakashelwa esitolo inthanethi kanye umthamo yokuthengisa yayo. Ubuhlobo obuseduze ezitholiwe phakathi kwalezi amagugu njengoba yokuthengisa ubhiya izinga lokushisa komoya, nezinga lokushisa ukuze uthole indawo ethile onyakeni wamanje kanye esandulele, nokunye. D. Indlela ukuchaza Coefficient pair ukuhlanganisa? Manje, siphawula ukuthi kuthatha inani ukusuka -1 kuya ku-1, lapho inombolo engenhle kubonisa reverse, kanye omuhle - kwencika oqondile. I emikhulu imiphumela iyunithi ukubala, aba maningi ezidlula kwethonya nomunye. A ukubaluleka zero limelela yokuntuleka kwencika ukubaluleka esingaphansi 0.5 kubonisa abampofu, kungenjalo - ukuba icaciswe ubuhlobo.

ukuhlanganisa Pearson sika

Kuye ngalokho isikali esilinganisiwe eziguquguqukayo tekubala esetshenziselwa inkomba (Fechner Coefficient Spearman, Kendall futhi t. D.). Lapho uhlolwa amagugu isikhawu, ngokuvamile ezisetshenziswa inkomba, yasungulwa Karlom Pirsonom. Lesi isilinganiso kubonisa degree of ubuhlobo komugqa phakathi amapharamitha amabili. Lapho abantu bakhuluma ngokuthuthukisa ubudlelwane obuncane, iningi ke futhi ube engqondweni. Le nkomba isibe zithandwa kakhulu kangangokuba has ifomula Excel futhi kungaba esiwusizo kakhulu uma ufuna ukuqonda ukuthi yini ukuhlanganisa okungukuthi, ngaphandle kokuya butholakala enqubweni eyinkimbinkimbi yokuthela amafomula ayinkimbinkimbi. I-syntax lo msebenzi kuyinto yefomu: PEARSON (array1, array2). Njengoba afanayo sokuqala nesesibili izinombolo elihambisana amabanga ngokuvamile ukufaka endaweni.