The prediction formula and its error estimation are also established. Its regression and time-varying autoregression model is presented.

在此基础上建立时变序列预测公式及误差估计公式，给出其回归与时变自回归模型。

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Therefore, the prediction formula of the water breakthrough time is derived based on fluid flow in porous media, considering the impact of anti-condensate.

基于多孔介质流体质点渗流规律，考虑反凝析油的影响，推导了近似直线供给边界的边水凝析气藏见水时间预测新公式。

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The prediction formula of yearly production and the approximation formula for reduction between the instantaneous production and yearly production are also presented.

给出了年产量预测公式及瞬时产量与年产量相互换算的近似公式。

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By analyzing the results of every play in every NFL game in history and the circumstances surrounding them Prediction Machine was able to build a formula that can estimate a team's chances of winning the game before and after any play.

WSJ: NFL: The Plays That Decided the Playoffs

If their prediction is correct, it will confirm that the phenomenon is real and that their formula is capturing its essence.

ECONOMIST: Physics