Sometimes it is useful to examine individual observations to see whether the actual value of the dependent variable is above or below the predicted value.
有时，检验个体观测值来看它的因变量高于还是低于预测值是有用的。
In this paper a ct algorithm of recovering time-dependent 3-d ionospheric electron density distributions by using GPS observations is suggested.
提出了利用GPS观测数据获得时变三维电离层电子密度分布的一种CT反演算法。
In this paper a ct algorithm of recovering time-dependent 3-d ionospheric electron density distributions by using GPS observations is suggested.
提出了利用GPS观测数据获得时变三维电离层电子密度分布的一种CT反演算法。
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