{"action":"created","issue":{"url":"https://api.github.com/repos/ioam/holoviews/issues/103","labels_url":"https://api.github.com/repos/ioam/holoviews/issues/103/labels{/name}","comments_url":"https://api.github.com/repos/ioam/holoviews/issues/103/comments","events_url":"https://api.github.com/repos/ioam/holoviews/issues/103/events","html_url":"https://github.com/ioam/holoviews/issues/103","id":79989624,"number":103,"title":"Collapsing an NdOverlay or HoloMap into a stream plot or error bars","user":{"login":"jbednar","id":1695496,"avatar_url":"https://avatars.githubusercontent.com/u/1695496?v=3","gravatar_id":"","url":"https://api.github.com/users/jbednar","html_url":"https://github.com/jbednar","followers_url":"https://api.github.com/users/jbednar/followers","following_url":"https://api.github.com/users/jbednar/following{/other_user}","gists_url":"https://api.github.com/users/jbednar/gists{/gist_id}","starred_url":"https://api.github.com/users/jbednar/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jbednar/subscriptions","organizations_url":"https://api.github.com/users/jbednar/orgs","repos_url":"https://api.github.com/users/jbednar/repos","events_url":"https://api.github.com/users/jbednar/events{/privacy}","received_events_url":"https://api.github.com/users/jbednar/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/ioam/holoviews/labels/feature","name":"feature","color":"84b6eb"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":13,"created_at":"2015-05-23T23:53:56Z","updated_at":"2015-05-24T10:00:56Z","closed_at":null,"body":"The recent addition of error bars is great, but they currently have to be constructed explicitly, which can be error prone (no pun intended).  Since we encourage people to collect stacks of data into containers like NdOverlays and HoloMaps, it would be great if we could very easily tell HoloViews to create a summary plot by collapsing those data structures along a certain dimension by calculating the mean (or median?) value along with error bars (or stream widths, once stream plots are supported).  This should be a nice way to move back and forth between the full data and reduced versions thereof, so that people can get a  nice intuition about how well the summary statistics represent the underlying data."},"comment":{"url":"https://api.github.com/repos/ioam/holoviews/issues/comments/104997963","html_url":"https://github.com/ioam/holoviews/issues/103#issuecomment-104997963","issue_url":"https://api.github.com/repos/ioam/holoviews/issues/103","id":104997963,"user":{"login":"jlstevens","id":890576,"avatar_url":"https://avatars.githubusercontent.com/u/890576?v=3","gravatar_id":"","url":"https://api.github.com/users/jlstevens","html_url":"https://github.com/jlstevens","followers_url":"https://api.github.com/users/jlstevens/followers","following_url":"https://api.github.com/users/jlstevens/following{/other_user}","gists_url":"https://api.github.com/users/jlstevens/gists{/gist_id}","starred_url":"https://api.github.com/users/jlstevens/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jlstevens/subscriptions","organizations_url":"https://api.github.com/users/jlstevens/orgs","repos_url":"https://api.github.com/users/jlstevens/repos","events_url":"https://api.github.com/users/jlstevens/events{/privacy}","received_events_url":"https://api.github.com/users/jlstevens/received_events","type":"User","site_admin":false},"created_at":"2015-05-24T10:00:56Z","updated_at":"2015-05-24T10:00:56Z","body":"> I'm about to sign off, but I don't see how I was proposing mixing raw data and analysis. \r\n\r\nThis is @philippjfr's suggestion of extra value dimensions in chart elements.\r\n\r\nWhat you are talking about sound like an operation to me and very similar to one that already exists (``operation.collapse_curve``). If I had had HoloViews when writing the GCAL paper, this is exactly what I would have done - written a ``MapOperation`` to process the curves in an ``NdOverlay``."}}