Oroko ake Time tātari raupapa ara hou o te whanaketanga

Whakaaro i te tātari wa-raupapa, e kore rite ki te ariā tauanga waitara me te whakamahia whānuitia i roto i te mahi, i te āhuatanga, ka taea e tatou e faaoti e tenei kaupapa ko te tino hāngai i tenei ra mo te ako o te maha o ngā tukanga. Ko reira tino i roto i te tono i roto i te mahi ohaoha o te tangata, na homai te nuinga o nga tauira i roto i te tuhinga pūtaiao, me te rongonui e i te wāhi o te tirohanga o tona whakamahi i roto i tenei horopaki. Otiia i roto i tenei ao o te whakamahi o te raupapa ako me te aromatawai wa e kore e mutu i reira.

fakamanatu te whakamāramatanga rawa o te raupapa wā i roto i ara maha tatou o te tukanga o kohikohi te mōhiohio tauanga katoa, a he whakatika chotkom i etahi wā, mahi tūturu, tikanga whanganga, hoatu te tūturutanga nui. I roto i te mau parau te tahi atu, i roto i te whakaahuatanga o tetahi tītohunga te whakamahi i te kauwhata i reira whakaritea te abscissa tohu wa inenga, me tona nui tinana tūturu i runga i te tuaka whakarite.

I roto i te ngako i hanga nga tikanga o te wā tātari raupapa i te wa te pūtake o ngā whakaahuatanga o maha ture tinana me ngā tukanga hangarau. Kua whakaaetia to ratou whakatau te tukanga ki te whakaiti i te whakaahuatanga ki te faaiteraa pāngarau motuhake. Otiia kihai i taea e ki te uru i roto i ngā tātai pau tukanga katoa. kore kua te otinga o rua raruraru matua kua whakakorea. Ko ratou:

- te whakatau i te āhua o te raupapa;

- Matapae.

Na te tātaritanga o te raupapa wā riro te hiringa atu ki tona whanaketanga me te puta i roto i tona täoro ki te huinga taonga o taputapu me ngā tikanga.

He tauira matarohia ko te maha o raupapa wā, whakaarohia i roto i te 1976 e Box me Jenkins. I runga i te tauira o ako te mahi o te rererangi ao marama mō te tekau ma rua nga tau i roto i te 1949-1960 tau wā, kua whakakitea e ratou te aroaro o e rua ngā wāhanga: te au tata rārangi me ngā huringa kaupeka. A, no te te hua i roto i te waka, kua piki nui haere, ka ki runga ki te wa rānei, kei te wā pakaru wāhanga, me te mahi i te pirau. ka karanga tenei momo o te whakaahuatanga ko te tauira tau takoto whakarea.

I roto i te taua tau e whakaarohia ana te taua Box me Jenkins te ngā rawa i roto i ngā o te matakite, engari ngātahi wa-kai tino me te tikanga matatini o te autoregressive neke toharite (Arima).

I roto i te ako o ngā tukanga, e E whai wāhi ana waho riro horapa haukotia tikanga mahi raupapa wā. I whakaahuatia e ia i roto i te 80-doma o te rau tau whakamutunga. Kei roto i te tikanga i roto i te haapiiraa i te tukanga i muri i te wawaotanga o te pūnaha i waho. Time tātari raupapa ko ki te aromatawai i te whakataki o tikanga hou o te whakahaere, te whakamahi o rerekē matau-pehea, whakaawe te tukanga-ture , a na atu.

tātari spectral o puta raupapa wā i runga i te pūtake o ngā tikanga o mua. I roto i te paearu aro mātai mō tenei tikanga, ko te mārama wā kitea me te auau. Kei te whakamahia whānuitia i roto i te tātai , he tau matatini, Fourier taui.

Ko te nui o ngā tikanga me ngā tūāhua, e whakamahi wa tātari raupapa, haapapu pehea tenei whenua momona mō te rangahau anō. I muri whakaahua i enei tukanga e cumbersome me rapu utu i te tetahi wheako i te kaitātari. Kaha ekeeke i roto i te whanaketanga o te hangarau rorohiko whaiaro kua arahina ki te mutunga e tenei momo o te tātari ki te taumata hou. Ko hanga te ubiquity o te Internet kua wātea ana ki te kāwai whānui o te rangahau hou i roto i tenei rohe.

e kore he tātari wa-raupapa e, whakamahi he kaitākaro angitu i roto i te mākete forex, ko reira te ako o ngā rārangi whanaketanga te kamupene o ka taea te kaiwhakahaere ki te whakawhanake i te pono kaupapa here rautaki, me te aromatawai mākete whakarato te mara whānui o te mahi mō ngā marketers me kaiwhakahaere, tuku ki a koutou te whakatika i te taumata utu me te whānuitanga o ngā hua hokona ratonga ranei ki te whiwhi i te painga mōrahi.

Ia tikanga o te tātari tika tokanga makehe, me te titau i te ako tino. A, ki te whai koe i te hunga hiahia i roto i, tutuki te whakaaro o te tuhinga ko tetahi o ratou.