- 測(cè)定系數(shù)
- 決定系數(shù)
- 可決系數(shù)
- 確定系數(shù)
- 確定指數(shù)
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coefficient of determination中文什么意思
例句與用法
- These imply that the spatial distributions of the different grades of the arable land , classified by the reference land unit method , reflect reasonably the spatial changes of geomorphological units and soil types . the linear estimation model between comparable productions and the corresponding quality ratings of 210 sample units shows that the coefficient of determination r2 is 0 . 876 , which means that 87 . 6 % of the change of y is explained by the change of x . it is concluded that the arable land quality ratings calcul ated by the method can reflect the biologic productivities of land
另外，利用210個(gè)樣點(diǎn)單元的標(biāo)準(zhǔn)糧產(chǎn)量( y )與其對(duì)應(yīng)樣地法土地質(zhì)量分( x )進(jìn)行線(xiàn)性擬合，判定系數(shù)r ~ 2等于0 . 876的含義是指y的變異中有87 . 6是由x引起，表明了樣地法土地質(zhì)量分的高低較好地反映了耕地的生物生產(chǎn)力水平。
百科釋義
In statistics, the coefficient of determination, denoted R2, is used in the context of statistical models whose main purpose is the prediction of future outcomes on the basis of other related information. R2 is most often seen as a number between 0 and 1.
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