2.4 rautaki Rangahau

Homai enei āhuatanga kotahi tekau o ngā puna raraunga nui, me nga here tūturu o raraunga ara maitai kitea, he aha te ahua o ngā rautaki rangahau e whai hua? Ko, me pehea tatou e nehenehe e haapii mai, no te kore tatou e ui pātai me te kore e rere ngā? ai mea he kore i taea e e tika matakitaki iwi arahi ki te rangahau ngā, engari e kore e te e te take.

kite ahau toru rautaki matua mō te ako i te raraunga observational: mea tatau, nga mea matakite, a approximating ngā. ka whakaahua ahau ia o enei huarahi-e taea te huaina "rautaki rangahau" ranei "tohutao rangahau" -pea ka whakaatu ia ratou e ahau ki te tauira. Enei rautaki e kore tāuke ngaio ranei, engari mahi ratou te hopu i te rota o te rangahau ki te raraunga observational.

Ki te atea i te kerēme e whai, tatau nga mea he tino nui, ina e empirically whakawa tatou i waenganui i matapae i ariā rerekē. Forecasting, a rawa nowcasting, e taea e whai hua mō kaihanga kaupapa here. I te pae hopea, e faarahi raraunga nui to tatou kaha ki te hanga whakatau tata causal i raraunga observational.