fix bug: the pval for calibration should be in log space

Signed-off-by: abelxie <jinjing.xie@gmail.com>
fix bugs

Signed-off-by: abelxie <jinjing.xie@gmail.com>
added debug code and visualize code to determine why the training is not good

See the low_kick is not well learned for datasetTrain3


Signed-off-by: abelxie <jinjing.xie@gmail.com>
still doing the last problem

Signed-off-by: abelxie <jinjing.xie@gmail.com>
Signed-off-by: abelxie <jinjing.xie@gmail.com>