sample regression line 中文意思是什麼

sample regression line 解釋
樣本回歸直線
  • sample : n 1 樣品，貨樣。2 標本；榜樣，實例。3 【統計】典型取樣，抽檢查。4 【電訊】信號瞬時值。5 【冶金】 ...
  • regression : n. 1. 復歸，回歸。2. 退步，退化。3. 【天文學】退行。adj. -sive ,-sively adv.
  • line : n 1 線；繩索；釣絲；測深度用繩，捲尺。 a fishing line 釣魚線。 be clever with rod and line 會釣魚...
  1. The regression line is derived from a sample and not from the entire population.

    樣本回歸線是根據一個樣本而不是根據完全總體推導出來的。
  2. The flood and drought in both first stage and second stage of rainy season in fujian province were forecasted by the ways of line regression prediction equation and three kinds of artificial neural network models, the results show : the backpropagation ( bp ), radial basis function ( rbf ) and elman neural network models are much better than line regression prediction equation in historical sample fittings, independent sample test, actual prediction ability

    （ 3 ）運用線性回歸預報方程和三種人工神經網路模型對福建汛期旱澇進行預測的實驗表明： bp 、徑向基（ rbf ）和elman這三種人工神經網路模型在歷史樣本擬合精度上、獨立樣本檢驗結果和網路模型的實際預測能力上都明顯優于傳統的線性回歸方法。
  3. Regression software programs graph the sample points and give the ( cost - function ) formula of the straight line that best fits the points

    回歸軟體程序將樣本點用圖表示，並且給出最擬合樣本點的直線的價值函數公式。
  4. How do we think about how well our sample regression line fits our sample data

    我們如何衡量樣本回歸線是否很好地擬合了樣本數據呢
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