Lucas, Thanks for kicking off the discussion - great to see your proposal on this. I think it will be really valuable if we can converge on a standard way of representing this kind of data in Clojure/ClojureScript. Copying the Incanter and main Clojure groups as well because I think there will be broad interest in this.
My view is that it is worth distinguishing (decomplecting?) two things: a) The format used to convey the actual data, i.e. the labelled ":dataset" part of the data format suggested below b) The format used to specify the chart (chart type, axes etc.) I think a) Can be pretty closely linked to the standard core.matrix dataset / n-dimensional array structure. b) is much harder and may call for something more like ggplot2, also worth checking out Kevin Lynagh's c2 work (https://keminglabs.com/c2/) Therefore it may be easier to tackle a) in isolation first. b) will probably need more experimentation before we can settle on something sufficiently well designed and general. On Thursday, 11 December 2014 17:45:00 UTC+8, Lucas Bradstreet wrote: > > Hi everyone, > > We are currently writing an OM based visualisation / charting library that > we > intend to use extensively in combination with core.matrix and other data > analysis libraries/tools (e.g. gorilla REPL, incanter, etc). > > Some of the goals of this library: > - Provide a clojurescript wrapper for common visualisation libraries (C3, > dimple, Rickshaw, NVD3) for standard charting features. > - Provide a generic data format, with conversion functions to native > charting > library formats. > - Provide transformation functions between core.matrix datasets, incanter > datasets, etc to this generic charting format. > - Provide update functions to allow datasets to seamlessly be updated with > the > addition of data-points in map and vector formats. > - Provide seamless transitions when a dataset is updated, ala om. > > We would like to hear any of your thoughts regarding the following charting > data format below. This format maps fairly closely to core.matrix datasets > (note, although core.matrix datasets currently do not allow labelled > dimensions, this support is incoming). > > {:axes [{:label "X axis label" :type :category} > {:label "Y axis label" :type :category} > {:label "Z axis label" :type :measure} > {:label "C axis label" :type :color}] > :chart-type :area > :dataset {:labels [; 0th dimension is labelled from the 0th dimension > of the 1st > ; 1st dimension labels (i.e. columns) > ["timestamp" "event-count" "magnitude" "colour"] > ; 2nd dimension labels (i.e. series) > ["series1" "series2" "series3"]] > :data [[; series 1 data > [1 2 3 4] ; timestamp values > [100 200 300 400] ; event count value > [50 100 150 200] ; magnitude values > [25 50 75 100] ; colour values > ] > [[1 2 3 4] > [1 200 3 4] > [5 7 444 8] > [9 10 11 12]] > [[1 2 3 4] > [1 2 3 4] > [5 9 7 8] > [9 10 11 12]]]}} > > The above format is close to the native format used by C3, and can be > easily mapped > to a format that is more easily consumed by dimple charts: > > {:axes [{:key "timestamp", :type :category, :label "X axis label"} > {:key "event-count", :type :category, :label "Y axis label"} > {:key "magnitude", :type :measure, :label "Z axis label"} > {:key "colour", :type :color, :label "C axis label"}], > :chart-type :area, > :dataset [{:name "series1", > :values [{"colour" 25, "magnitude" 50, "event-count" 100, > "timestamp" 1} > {"colour" 50, "magnitude" 100, "event-count" 200, > "timestamp" 2} > {"colour" 75, "magnitude" 150, "event-count" 300, > "timestamp" 3} > {"colour" 100, "magnitude" 200, "event-count" 400, > "timestamp" 4}]} > {:name "series2", > :values [{"colour" 9, "magnitude" 5, "event-count" 1, > "timestamp" 1} > {"colour" 10, "magnitude" 7, "event-count" 200, > "timestamp" 2} > {"colour" 11, "magnitude" 444, "event-count" 3, > "timestamp" 3} > {"colour" 12, "magnitude" 8, "event-count" 4, > "timestamp" 4}]} > {:name "series3", > :values [{"colour" 9, "magnitude" 5, "event-count" 1, > "timestamp" 1} > {"colour" 10, "magnitude" 9, "event-count" 2, > "timestamp" 2} > {"colour" 11, "magnitude" 7, "event-count" 3, > "timestamp" 3} > {"colour" 12, "magnitude" 8, "event-count" 4, > "timestamp" 4}]}]} > > > We would love to hear any feedback of any kind on this format. > > Thanks, > > Lucas > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
