Highcharts Javascript API

  1. series.compare should switch to absolute values for single series in a graph

    We have a user requirement, inspired from Yahoo/Google finance, ie:
    In case of single series( read first series, eg stock) they would like to see actual values on Y axis.
    but whenever a new series is added they would like to switch to compare percent mode and vice-versa.

    39 votes
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  2. 38 votes
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  3. I suggest to add some very common buy/sell indicators for stock charting, in particular the treatment for "moving average curve"

    Buy / Sell Indicators:
    1) Moving average curve by adopting historical close price (say moving average of past 10 / 20/ 50 / 100 /250 trading days, i.e. days with trade) and the curve should be plotted as a smooth curve instead of ladder-like flat cuve;
    2) RSI (relatvie strength index to show oversold or overbought)
    3) MACD, etc.

    38 votes
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  4. Sort stacked columns by total

    Then Pareto graphs would look great even as series are added and removed.

    See also http://en.wikipedia.org/wiki/Pareto_chart

    37 votes
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  5. Post Charts to Facebook

    It would be great to be able to post preview images of charts to Facebook, so that when a user shares a chart on Facebook, it shows an image instead of just a link.

    36 votes
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  6. Progressive data rendering with zoom event

    Large data sets may well include more data than can be presented, given the pixel size of the display. When a user zooms in on the data, more information would then be needed to display detail data.

    A progressive mechanism would be useful to allow more detail to be requested and sent to the client via an ajax call, triggered from a zoom event. This progressive rendering might show a lag on zoom, but in some cases this lag would be preferred to a long delay for initial data display for very large data sets. It might also perform better…

    36 votes
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  7. Create some form of tree / node linking chart

    Highcharts doesn't currently appear to have any tree / node linking chart types. A few examples would be:

    - Dendograms: https://en.wikipedia.org/wiki/Dendrogram
    - Hierarchical clustering: https://en.wikipedia.org/wiki/Hierarchical_clustering
    - Minimum Spanning Tree: https://en.wikipedia.org/wiki/Minimum_spanning_tree

    The above chart types vary in their purpose and how they are constructed. But this request is simply to have some form of tree / node linking chart capabilities in highcharts.

    Once it becomes possible to chart a basic tree or hierarchy structure, it may be easier to extend functionality to create further chart types along the same thinking.

    Plot.ly currently offers both dendrogram's and tree plots within their python…

    35 votes
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  8. Let Highcharts.dateFormat support week numbers.

    %U, %V and %W on php strftime

    35 votes
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  9. Add Drawing Tools

    Trendlines
    Channels
    Notes
    Price levels
    Time levels
    Basic shapes

    35 votes
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  10. HighStock Navigator as a standalone component.

    Hi,

    Please make HighStock navigator a standalone component.

    It could have several usages besides driving the HighStock time:
    - immediate time selection/change for any web application - much more intuitive than just a Date + Time picker. Right now there's nothing similar: you have it, it's user friendly, but it' just not standalone.
    - use to zoom in and out several HighCharts (not HighStock) in the same page. Right now there's only a mouse based zoom (with and selection), but that's not very efficient when using more than one chart in the same page. Syncing those charts is still not…

    33 votes
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  11. Use requestAnimationFrame instead of setTimeout

    All animations in Highcharts use setTimeout. A new feature, requestAnimationFrame (https://developer.mozilla.org/en/DOM/window.mozRequestAnimationFrame) optimize all animations (CSS3, SVG, JS) to have a smooth rendering.

    More explanation : http://paulirish.com/2011/requestanimationframe-for-smart-animating/

    33 votes
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  12. Theme Creator

    A theme creator for different styles of the library would be nice.

    31 votes
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  13. 31 votes
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  14. Add Custom Buttons

    Include options to set up custom buttons with call-backs to perform certain functionality.

    For example, I would love to be able to have a button next to the current print and export buttons that would be used for help/information about the chart.

    31 votes
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  15. Allow zero and negative values in logarithmic axes

    where:
    log(0) === 0
    log (-x) === log(x) * -1

    31 votes
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  16. Tooltip data interpolation

    If I've got a sparse dataset (e.g. to save space, duplicate data points are omitted), a line graph still represents the data accurately, however the tooltip only appears over the actual data points.

    Would it be possible for the tooltip to interpolate the data at the mouse pointer's position so as to show a value whether there's an actual data point there or not?

    30 votes
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  17. 30 votes
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  18. add support for subscripts and superscripts to the Renderer buildText function.

    Currently, the buildText function doesn't render subscripts and superscripts in the SVG output, but subscripts and superscripts are supported in SVG 1.1 using the baseline-shift attribute on the tspan element. Please add support for parsing <sub> and <sup> tags and rendering them as appropriate tspan elements.

    29 votes
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  19. Suggest to implement 'Violin plots" in Highcharts.

    This graph accurately and intuitively explains the min/max values along with 'standard deviation'. I felt this is more useful than a box plot.

    29 votes
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  20. Option for fixed width (groupPadding) between columns

    I have a column chart that can have a variable number of columns. I would like a slight gap between each column, but I'd like it to be consistent no matter how many columns there are or how wide they are. I've tried groupPadding and pointPadding, but if you use a static value the padding seems to vary depending on how wide the columns are. See this example:

    http://jsfiddle.net/JxCEh/

    It would be nice to have a way to define a fixed padding in pixels or points that always stays the same.

    29 votes
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Highcharts Javascript API

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