Ko te tau whakarea ine pānga - tauira ine āhuatanga

tauira ine pānga (CM) - he hōtaka tātaitanga e whakarato ana fariiraa o te whārite pāngarau, i roto i nei quantified te tohu hua i runga i tetahi atu ranei tohu rānei.

yx = ao + a1h1

te wahi: y - tohu mahi, i runga i te take x rānei;

x - tohu tauwehe;

A1 - tawhā KM, e whakaatu ana te nui huringa i roto i te tohu hua ka huri take x i tetahi, ki te toe nga atu āhuatanga katoa e pā te y tonu;

AO CM tawhā e whakaatu ana i te pānga o ētahi atu āhuatanga katoa i runga i te taupū whai hua o te y, i tua atu i tauwehe tāupe x

A, no te me tango te kōwhiri i tohu whai hua me tauira tauwehe ki pūkete te meka e te tohu mahi i roto i te mekameka o te causality tu i runga i te taumata ki runga ake i te take mahi.

Āhuatanga tauira ine pānga

I muri te tātai i te tau whakarea ine pānga tauira ine pānga tawhā tātai.

p - whakarea ine ohie, -1 ≤ r ≤ 1, whakaatu reira te kaha, me te aronga tohu i runga i score tauwehe pānga. Ko te ofi ki te 1, te kaha te hononga, te piri ki te 0, ko ngoikore te here. Ki te he pai te whakarea faatanoraa, na he tika te hononga, ki te kino - whakamuri.

Ko te tātai ine pānga whakarea: pxy = (x-x * 1 / y) / * eu tēnā

tēnā = hh2- (x) 2; eu = y2 (y) 2

Ki te te rārangi CM multifactorial, he te puka:

yx = ao + a1h1 a2x2 + + ... + anx

Na i tatau reira maha whakarea te faatanoraa.

0 ≤ P ≤ 1, a ka whakaatu te kaha o te pānga o ngā tohu score tauwehe katoa tangohia tahi.

P = 1- ((yi-yi) 2 / (yi -usr) 2)

Kei hea: uh - tohu hua - uara tatau;

yi - te uara tūturu;

uara tūturu usr-, toharite.

yi uara tata whiwhi e whakakapi i te tauira ine hei utu o x1, x2 etc. ratou uara tūturu.

No te tauira univariate me matatini tātai te nonlinear ine pānga ōwehenga:

-1 ≤ m ≤ 1;

0 ≤ m ≤ 1

Kei te whakapono te reira e te hononga i waenganui i whai hua, me te uru i roto i te tauira o tohu whakarea ngoikore, ki te te tightness o te whakarea e honoa (m) i roto i te awhe 0-0.3; ki te 0.3-0.7 - haafatataraa o te hononga - te toharite; 0.7-1 runga ake - he here kaha.

Mai ine pānga whakarea (te korohū) r, te whakarea ine (maha) R, ine pānga ōwehenga m - uara tūponotanga, tatau nei mo te whakarea o ratou auraa (tautuhia e te tepu). Ki te neke atu i te uara ratou tepu ko enei tau whakarea, te haafatataraa o nga tau whakarea hononga he take faufaa. Ki te nga tau whakarea hononga faufaa rahi tightness iti atu i ngā uara tepu, ki te hononga whaiaro whakarea ranei he iti iho i te 0.7, e kore e te tauira ngā tawhā whakarea katoa e tino pā te hua.

Ko te tau whakarea o te faaotiraa whakaatu te take ōrau ngā i roto i te tauira tawhā whakatau te hanganga o te hua.

D = P2 * 100%

D = P2 * 100%

D = m 2 * 100%

Ki te he nui atu i te 50 te tau whakarea o te faaotiraa, na te tauira āta whakaahua ana i te tukanga i raro i ako, ki te iti iho i te 50, he mea e tika ana ki te haere hoki ki te wāhanga tuatahi o te hanga, me te ki te whakahou i te tohu tauwehe kōwhiringa mō te whakauru i roto i te tauira.

Fisher Fisher tauwehe paearu ranei faaite te tōtika o te tauira rite te katoa. Ki te he nui atu i te tepu te ōwehenga tatau, he pai hoki te tātari me te tohu o te whakamahere mo te whakataunga ake nei te tauira hanga. Te pakeke te uara tepu = 1.5. Ki te he iti iho i te tepu te uara tatau, me hanga tuatahi koe he tauira, tae atu āhuatanga nui awe i te hua. I tua atu ki te tōtika o te tauira whānui ki tino pā ia whakarea inenga. Ki te nui te uara tatau o tenei ōwehenga i roto i te tepu nui, ko te whakarea regression nui ki te timata ano iti, na te tawhā tauwehe, hoki nei e nekehia atu te whakarea tātai i te tātaitanga tauira, engari kahore tenei take.