{"action":"created","comment":{"url":"https://api.github.com/repos/pydata/pandas/pulls/comments/69729153","id":69729153,"diff_hunk":"@@ -61,6 +61,42 @@ def to_numeric(arg, errors='raise'):\n         - If 'raise', then invalid parsing will raise an exception\n         - If 'coerce', then invalid parsing will be set as NaN\n         - If 'ignore', then invalid parsing will return the input\n+    downcast : {'signed', 'unsigned'}, str, numpy.dtype, or\n+               Python dtype, default None\n+        If possible, downcast the resulting numerical data to the\n+        specified numerical dtype in 'downcast'. If the size\n+        of the data's dtype is smaller or equal to that of 'downcast',\n+        then this parameter will be ignored.\n+\n+        If 'downcast' refers to a more generic dtype (e.g. int),\n+        downcast the resulting numerical data to the smallest\n+        dtype possible under that more generic dtype specification\n+        that is of smaller size than the current numerical\n+        data dtype according to the following rules:","path":"pandas/tools/util.py","position":24,"original_position":24,"commit_id":"4804435d2e4ece49d41cbabe68f15b7911a9f070","original_commit_id":"4804435d2e4ece49d41cbabe68f15b7911a9f070","user":{"login":"gfyoung","id":9273653,"avatar_url":"https://avatars.githubusercontent.com/u/9273653?v=3","gravatar_id":"","url":"https://api.github.com/users/gfyoung","html_url":"https://github.com/gfyoung","followers_url":"https://api.github.com/users/gfyoung/followers","following_url":"https://api.github.com/users/gfyoung/following{/other_user}","gists_url":"https://api.github.com/users/gfyoung/gists{/gist_id}","starred_url":"https://api.github.com/users/gfyoung/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gfyoung/subscriptions","organizations_url":"https://api.github.com/users/gfyoung/orgs","repos_url":"https://api.github.com/users/gfyoung/repos","events_url":"https://api.github.com/users/gfyoung/events{/privacy}","received_events_url":"https://api.github.com/users/gfyoung/received_events","type":"User","site_admin":false},"body":"@jreback : I know you have mentioned this multiple times, but see my comment <a href=\"https://github.com/pydata/pandas/pull/13425#issuecomment-230118332\">here<a/>.  Some justification for this behaviour?  Again, I don't see we need to be this harsh.","created_at":"2016-07-06T13:28:24Z","updated_at":"2016-07-06T13:28:24Z","html_url":"https://github.com/pydata/pandas/pull/13425#discussion_r69729153","pull_request_url":"https://api.github.com/repos/pydata/pandas/pulls/13425","_links":{"self":{"href":"https://api.github.com/repos/pydata/pandas/pulls/comments/69729153"},"html":{"href":"https://github.com/pydata/pandas/pull/13425#discussion_r69729153"},"pull_request":{"href":"https://api.github.com/repos/pydata/pandas/pulls/13425"}}},"pull_request":{"url":"https://api.github.com/repos/pydata/pandas/pulls/13425","id":73450851,"html_url":"https://github.com/pydata/pandas/pull/13425","diff_url":"https://github.com/pydata/pandas/pull/13425.diff","patch_url":"https://github.com/pydata/pandas/pull/13425.patch","issue_url":"https://api.github.com/repos/pydata/pandas/issues/13425","number":13425,"state":"open","locked":false,"title":"ENH: add downcast to pd.to_numeric","user":{"login":"gfyoung","id":9273653,"avatar_url":"https://avatars.githubusercontent.com/u/9273653?v=3","gravatar_id":"","url":"https://api.github.com/users/gfyoung","html_url":"https://github.com/gfyoung","followers_url":"https://api.github.com/users/gfyoung/followers","following_url":"https://api.github.com/users/gfyoung/following{/other_user}","gists_url":"https://api.github.com/users/gfyoung/gists{/gist_id}","starred_url":"https://api.github.com/users/gfyoung/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gfyoung/subscriptions","organizations_url":"https://api.github.com/users/gfyoung/orgs","repos_url":"https://api.github.com/users/gfyoung/repos","events_url":"https://api.github.com/users/gfyoung/events{/privacy}","received_events_url":"https://api.github.com/users/gfyoung/received_events","type":"User","site_admin":false},"body":"Title is self-explanatory.  Closes #13352.","created_at":"2016-06-10T23:53:24Z","updated_at":"2016-07-06T13:28:24Z","closed_at":null,"merged_at":null,"merge_commit_sha":"127b6af85a4d6242613f729847ff6109ebca2523","assignee":null,"assignees":[],"milestone":null,"commits_url":"https://api.github.com/repos/pydata/pandas/pulls/13425/commits","review_comments_url":"https://api.github.com/repos/pydata/pandas/pulls/13425/comments","review_comment_url":"https://api.github.com/repos/pydata/pandas/pulls/comments{/number}","comments_url":"https://api.github.com/repos/pydata/pandas/issues/13425/comments","statuses_url":"https://api.github.com/repos/pydata/pandas/statuses/4804435d2e4ece49d41cbabe68f15b7911a9f070","head":{"label":"gfyoung:to-numeric-enhance","ref":"to-numeric-enhance","sha":"4804435d2e4ece49d41cbabe68f15b7911a9f070","user":{"login":"gfyoung","id":9273653,"avatar_url":"https://avatars.githubusercontent.com/u/9273653?v=3","gravatar_id":"","url":"https://api.github.com/users/gfyoung","html_url":"https://github.com/gfyoung","followers_url":"https://api.github.com/users/gfyoung/followers","following_url":"https://api.github.com/users/gfyoung/following{/other_user}","gists_url":"https://api.github.com/users/gfyoung/gists{/gist_id}","starred_url":"https://api.github.com/users/gfyoung/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gfyoung/subscriptions","organizations_url":"https://api.github.com/users/gfyoung/orgs","repos_url":"https://api.github.com/users/gfyoung/repos","events_url":"https://api.github.com/users/gfyoung/events{/privacy}","received_events_url":"https://api.github.com/users/gfyoung/received_events","type":"User","site_admin":false},"repo":{"id":51449909,"name":"pandas","full_name":"gfyoung/pandas","owner":{"login":"gfyoung","id":9273653,"avatar_url":"https://avatars.githubusercontent.com/u/9273653?v=3","gravatar_id":"","url":"https://api.github.com/users/gfyoung","html_url":"https://github.com/gfyoung","followers_url":"https://api.github.com/users/gfyoung/followers","following_url":"https://api.github.com/users/gfyoung/following{/other_user}","gists_url":"https://api.github.com/users/gfyoung/gists{/gist_id}","starred_url":"https://api.github.com/users/gfyoung/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gfyoung/subscriptions","organizations_url":"https://api.github.com/users/gfyoung/orgs","repos_url":"https://api.github.com/users/gfyoung/repos","events_url":"https://api.github.com/users/gfyoung/events{/privacy}","received_events_url":"https://api.github.com/users/gfyoung/received_events","type":"User","site_admin":false},"private":false,"html_url":"https://github.com/gfyoung/pandas","description":"Flexible 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