| Author |
Comment/Response |
john
|
 08/28/09 2:42pm
I need to regress on a x-y data set with weights to each y. I use the following command
ggp = Regress[kk, {1, x, x^2}, x, Weights -> w,
RegressionReport -> {SinglePredictionCITable}];
However, the returns are the same as I use the following
ggp = Regress[kk, {1, x, x^2}, x,
RegressionReport -> {SinglePredictionCITable}];
or the following,
w=w*0
ggp = Regress[kk, {1, x, x^2}, x, Weights -> w,
RegressionReport -> {SinglePredictionCITable}]; where weight is explicitly set to be zero by multiplying it with 0.
This seems to give me clear indication that Regress didn't take Weights into the calculation, or is it because of some mistakes the way I play with Regress that Weights option is automatically ignored? Thanks for your help,
For your information, I use mathematica 5.2, linux version
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