GLM bug fix. Fixed link to GLMGrid (used to put expanded column names to the url).
Merge branch 'master' of github.com:0xdata/h2o
Merge branch 'master' of github.com:0xdata/h2o
GLM update. Added checks for valid response variable depending on the family (e.g. poisson requires y >= 0)
Updated GLMGrid to run in parallel for each alpha, run lambdas in decreasing sequence and use results of previous run to warm start the next.
Merge branch 'master' of github.com:0xdata/h2o
Merge branch 'master' of github.com:0xdata/h2o
GLM update.
  1. Tweaks to glmgrid (run different alphas in parallel, warm start).
  2. Hopefully fixed poisson issues: It appears the problem was running with initial beta vector to be all zeros. Then the first run equaled to running linear regression, which resulted in the first estimate of beta containing potentially large numbers (response variable can be expected to contain large values). Since the link for poisson is log, and the inverse of link is exponential, this lead to infinities in the second run (exponential of large number). I fixed this by computing beta start as logarithm of the y (response variable), similarly as in glm implementation in R.
  3. Added simple test for poisson into GLMTest.
small update to glm test(poisson regression test).
Merge branch 'master' of github.com:0xdata/h2o