He aha te tikanga rite te whakarea ine pānga me te uara o

I roto i to tatou ao, e tuati-katoa, tetahi wahi he kitea reira ki te kanohi tahanga, a i roto i ētahi wā e kore e te iwi ara mohio e pā ana ki te oraraa o te hononga taua. Otiia, tatauranga, ka kōrero ki te fakafalala tahi, maha whakamahi i te wā "faatanoraa". maha e taea te kitea i te reira i roto i te tuhinga ōhanga. Kia tamata o ki te feruri i roto i te mea ko te mauri o tenei ariā, he aha e nga āhuatanga me pehea ki te whakamāori i te uara whiwhi.

ariā

Na, he aha te mea te ine? Ka rite ki te tikanga, uhinga a tenei wā he hononga tauanga i waenganui i rua, neke atu rānei ngā tawhā. Ki te huri koe i te uara o tetahi atu o ratou ranei, reira heipü pānga te uara o nga ētahi atu. Hoki te whakamāramatanga pāngarau o te kaha, ko te noa taua taupuhipuhinga ki te whakamahi i te whānuitanga o ngā āhuatanga. Me kï reira e i roto i te take i reira e kore e he huringa i roto i te kotahi tawhā arahi ki te huringa taiao i roto i te tahi atu, engari te pānga i runga i tetahi o te tawhā āhuatanga tauanga, e kore te mea he hononga taua he faatanoraa, engari tatauranga tika.

History o te wā

I roto i te tikanga ki te mahino pai ki ta te faatanoraa, kia ruku a ki te kōrero. puta tenei wā i roto i te whakawhetai XVIII rau ki te mau tautooraa o te paleontologist French Zhorzha Kyuve. Kua whakawhanakehia tēnei kaipūtaiao he pera-ka karanga "ture o te faatanoraa ohipa" whekau, me ngā wāhanga o mea ora, e taea ai e koe whakahoki te ahua o te matatoka tawhito o te kararehe, me anake etahi o wātea ona toenga. I roto i te tatauranga, ka puta mai tenei kupu ki te whakamahi i roto i 1886 ki te ringa marama o nga tatauranga Ingarihi me kaikoiora Francis Galton. Kua kitea te taitara rawa o te wā tona tikanga: e kore e tika, a kahore kōrero anake - «pā ana», me te hononga ki ia atu he tahi mea ngā - «tahi-e pā ana». Heoi, mārama whakamārama pāngarau e tenei ine taea anake ākonga Galton, he kaikoiora me te mathematician Karl Pearson (1857 - 1936). Ko ia te tangata e tuatahi kawea te tātai pū mō te tātai i te tau whakarea hāngai.

ine pānga takirua

Heoi karanga tatou he hononga i waenganui i rua uara motuhake. Hei tauira, kua whakamatauria te reira e e tata ana te utu ā-tau o te pānuitanga i roto i te Hau Amui no Marite ki te rahi o te hua motu matotoru. Kei te tata te reira e waenganui i enei uara i roto i te wā i 1956 ki te 1977 atua ine pānga whakarea i 0,9699. Ko tētahi atu tauira - te maha o ngā haerenga ki te toa ipurangi me te rōrahi o ona hoko. Ko te taairaa piri kitea i waenganui i enei uara rite hoko o pia, me te pāmahana rangi, te pāmahana toharite mō te wāhi motuhake i roto i te tau o nāianei, me te o mua, a na i runga i. D. Me pēhea te ki te whakamāori i te tau whakarea o te rua ine? Na, i kite mātou i te reira i te uara i -1 ki te 1, tohu ai he tau tōraro te tahatua, me te pai - fakafalala tika. Ko te nui hua tatau kōwae, te nui te rahi o te mana i runga i ia atu. He uara o te kore tohu te kore o te uara fakafalala iti iho i te 0.5 tohu rawakore, a te kore - ki āta tāutuhia hononga.

ine pānga o Pearson

I runga anō i te aha tauine whanganga taurangi mō tātaitanga whakamahia mo te tohu (Fechner whakarea Spearman, Kendall me t. D.). A, no te korenga i ngā uara wā, te tohu tino whakamahia nuitia, whakaaro Karlom Pirsonom. Tenei ōwehenga tohu te tohu o te pānga rārangi i waenganui i te tawhā e rua. A, no te kōrero iwi e pā ana ki correlations, te nuinga o taua mea, me te whai i roto i te hinengaro. riro tenei tohu kua pera rongonui e te mea te tātai i roto i Excel, a taea kia tino mahi ki te hiahia koe ki te matau ki ta te faatanoraa ko, kahore haere ki te ture o tātai matatini. Ko te wetereo o tenei mahi o te puka: PEARSON (array1, array2). Ka rite ki nga huānga tuatahi, me te tuarua o te tau e ōrite ana awhe te tikanga whakakapi.