Recent content by bettertony

  1. B

    range of tuning parameters

    Hi All, I have just started my advanced statistics study. And here is one thing I have not been able to understand for long time -- how can we pre-determine the range of testing tuning parameters in cross validation if we do not want R automatically select them? I saw some paper says using a...
  2. B

    coefficient standardization

    Hi All, I am working on a 2nd order regression. The span of coefficient is large (say 1:10000). So the coefficients of 2nd order are very big and not in the same order of the 1st. I think it is needed to implement normalization (both coefficients and data). However, after I did the...