{"issue":{"title":"MRG: support for variance scaling on CSR matrices","user":{"login":"ogrisel","id":89061,"url":"https://api.github.com/users/ogrisel","avatar_url":"https://secure.gravatar.com/avatar/aee56554ec30edfd680e1c937ed4e54d?d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-140.png","gravatar_id":"aee56554ec30edfd680e1c937ed4e54d"},"created_at":"2011-12-24T23:25:54Z","milestone":null,"labels":[],"state":"open","updated_at":"2011-12-27T13:30:17Z","id":2653924,"closed_at":null,"html_url":"https://github.com/scikit-learn/scikit-learn/issues/515","pull_request":{"patch_url":"https://github.com/scikit-learn/scikit-learn/pull/515.patch","html_url":"https://github.com/scikit-learn/scikit-learn/pull/515","diff_url":"https://github.com/scikit-learn/scikit-learn/pull/515.diff"},"body":"Leverage @mblondel's work on Cython utility to compute mean and variance of CSR matrix to reuse it in the `sklearn.preprocessing` module for variance scaling.\r\n\r\nAlso move cython code from `sklearn.preprocessing` to `sklearn.utils.sparsefuncs`.","number":515,"url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/515","comments":5,"assignee":null},"comment":{"user":{"login":"ogrisel","id":89061,"url":"https://api.github.com/users/ogrisel","avatar_url":"https://secure.gravatar.com/avatar/aee56554ec30edfd680e1c937ed4e54d?d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-140.png","gravatar_id":"aee56554ec30edfd680e1c937ed4e54d"},"created_at":"2011-12-27T13:30:17Z","updated_at":"2011-12-27T13:30:17Z","id":3281352,"body":"Ok +1. I will try address your and Lars' remarks tonight or tomorrow. Thanks for the review.","url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/comments/3281352"},"action":"created"}