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readme updates.

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Will Charczuk 2016-07-15 17:00:50 -07:00
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@ -182,6 +182,14 @@ You can now also graph a moving average of a series using a special `MovingAvera
There is a helper method, `GetLastValue` on the `MovingAverageSeries` to aid in creating a last value annotation for the series.
# More Intense Technical Analysis
You can also have series that produce two values, i.e. a series that implements `BoundedValueProvider` and the `GetBoundedValue(int)(x,y1,y2 float64)` method.
![](https://raw.githubusercontent.com/wcharczuk/go-chart/master/images/spy_ltm_bbs.png)
Like the `MovingAverageSeries` this series takes an `InnerSeries` argument as required, and defaults to 10 samples and a `K` value of 2.0 (or two standard deviations in either direction).
# Design Philosophy
I wanted to make a charting library that used only native golang, that could be stood up on a server (i.e. it had built in fonts).