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Weights
As of Version 7.0, 
is part of the built-in Mathematica kernel.
is part of the built-in Mathematica kernel.
is an option for Regress and NonlinearRegress which specifies weights for the input data.
更多信息
- To use
, you first need to load the Regression Common Functions Package. You can do this by using 
or 
, which will automatically load the Regression Common Functions Package, or you can load the package directly by using 
. - Possible settings for
are Automatic, a list of numbers with the same length as the data, or a pure function. - With the default setting Weights->Automatic, each data point is given a weight of 1.
