Coding elastic net regulation
Continue coding elastic net
Continue coding elastic net
Continue coding elastic net
Continue coding elastic net
Finished coding for elastic Gaussian IGD
Finish coding elastic net for linear models using IGD
Elastic Net: Added argument validation, and support for normalization =
False
Elastic Net: Added short help message for igd
Elastic Net: Started adding documentation
Elastic Net: Continue writing documentation
Elastic Net: Documentation, Prediction function

Documentation is finished.

Move the prediction function from C into Python, so that a universal
interface can be used for all models.
Elastic Net: Corrected small bugs, added iteration_run in the output

iteration_run can help the user to know whether the tolerance criteria
is fullfilled.
Elastic Net: Use MSE difference between two consecutive states as
stopping criteria
Elastic Net: Finished batch coordinate descent method

Implemented R package glmnet's algorithm.
Elastic net BCD: updated the short help messages
Elastic Net BCD: Corrected a bug that seems to affect GPDB

Cannot assign sq to be length dimension-1, instead use dimension.
Elastic Net: Added Null values checks