Nzira kwemasvomhu nhamba. regression ongororo

Shandisai Shoko akawanda regression kuongorora vakatanga Pearson (Pearson) nemabasa ake, kudanana kubva gore 1908 asi. Iye se muenzaniso pomutumwa kuitisa kutengeswa Real Estate. In ake manotsi padzimba Trade nyanzvi akatungamirira nhoroondo zvakawanda kunobva Data mumwe nomumwe mamiriro. By zvabuda zvakaenda izvozvo anosarudza iyo chinhu aiva mukuru kubatsira mutengo kutengeserana.

Analysis kuti vakawanda kwema vakapa zvabuda dzinonakidza. Kwokupedzisira mutengo kufurirwa zvinhu zvizhinji, dzimwe nguva zvichitungamirira gangaidzo mhedziso uye kunyange "choutsi" pachena, kana imba rurefu rwokutanga zvinogona kutengeswa nomutengo mutengo indekisi ipfupi.

A Muenzaniso kushandiswa kuongorora ichi chechipiri anopiwa basa nyanzvi vashandi, uyo akapiwa kusarudza mushandi wavanobhadhara. The dambudziko akarara pakuti inodiwa kuparadzirwa haisi wakaiswa mari nerimwe, uye kunyatsotevedza ayo tsika wakananga basa rinoitwa. The kwaita mabasa akasiyana-siyana kuti vari zvinenge zvakafanana musiyano wezvinyorwa zvinogadzirisa, zvinoda uwane ongororo pane kwemasvomhu pamwero.

In kwemasvomhu uwandu, nzvimbo inokosha yakapiwa munhu "regression kuongorora" chikamu, ipapo vakabatana dzinoshanda unyanzvi aimbodzidza dependencies nokufukidzwa pfungwa regression. Ukama aya vakachengeta pakati Data vakawana muna Statistical Analyses.

Regression kuongorora mabasa pakati muzvizhinji musoro mukuru ane zvinangwa zvitatu: chidzore ari regression mukana wokuti vanhu vanga ari vakawanda chimiro; kuvakwa parameter kufungidzira kuti vasingazivikanwi, kuti vanobatanidzwa regression mukana wokuti vanhu vanga; vachiongorora regression Statistical hypotheses. Nokufamba kudzidza ukama kuti kunoitika pakati peya tsika zvinobva experimental zvaanorumbidza uye nhamba yenhengo (mazhinji) kutaipa (x1, y1), ..., (xn, yn), inobva nzvimbo regression dzidziso uye anoratidza kuti nokuda kuroora ukoshi Y pane kuparadzirwa mukana, pasinei nokuti mumwe X anoramba wakasimba.

Mugumisiro Y kunoenderana kukosha shanduka X, kutsamira inogona tsunga mitemo siyana, rakarurama zvabuda zvinokonzerwa pezvakaita uye chinangwa kuongorora kwakaitwa. The experimental womuenzaniso pazvikanganiso dzimwe zvekungofungira zviri itsanangudzo asi anobata. The chikuru ezvinhu ndechokuti kukosha parameter X rinodzorwa. tsika dzayo vanopiwa asati kutanga kuedza.

Kana nzira iri kuedza, peya chin'a variables ari xy, iyo regression kuongorora rinoitwa chete nzira, asi nekuda kududzirwa zvabuda, umo tikadzidza kubatana mukudzidza anongoitika variables, vakashandisa nzira dzose kuwirirana kuongorora. Statistical nzira havasi husingaoneki dingindira. Vanowana kushanda muupenyu muminda mabasa evanhu akasiyana.

Mumabhuku masayendisiti kuziva yekunwa nzira rwakawana rakafara kushandiswa rokuti Linear regression kuongorora. Nokuti shanduka X akashandisa izwi regressor kana kuzoita uye nemataundi variables Y-vaakadanawo criterial. mazwi aya zvinoratidza kwemasvomhu ukama variables, asi kwete rwokutsvakurudza causal ukama.

Regression kuongorora ndicho nzira kuti rinoshandiswa kubudiswa kwakaitwa siyana zvaakacherechedza. Physical uye chaivo nerevane vakadzidza pachishandiswa nzira iyi, chinozoiswa uye upfumi, uye unyanzvi. dzimwe nzvimbo Misa kushandisa regression ongororo womuenzaniso. Analysis kuti makakava, magadzirirwe kuedza, Statistical kuongorora multidimensional basa pamwe nenzira iyi kudzidza.