Switching the Series Type

Our stock charts provide a method allowing to change the series type if the current type and the new one have the same or similar fields. See the list of supported series to find out what series types can be converted to each other.

To switch the series use seriesType() method of a series and set the series name as a string parameter. Series names used as parameters are identical the methods used for creating the series. Let's create a couple of samples to make it clear how to use the feature.

    {x:'1790-01-01', value:3929214},
    {x:'1795-01-01', value:4390561},
    {x:'1800-01-01', value:5236631},
    {x:'1805-01-01', value:5989289},
    {x:'1810-01-01', value:7239881},
    {x:'1815-01-01', value:8722382},
    {x:'1820-01-01', value:9638453}

// map the data
mapping = table.mapAs({'x':"x", 'value':"value"});  

// set the series
var series = chart.plot(0).line(mapping);

// create scroller series with values
var scrollerSeries = chart.scroller().area(table.mapAs({'value': 'value'}));

// change the series type

JsFiddle Playground

In the following sample, the seriesType() method is applied to OHLC and Japanese candlestick series, which require four values, as well as to a range area series:

table = anychart.data.table("x");
    {'x': '2015-04-01', 'o': 18.23, 'h': 19.36, 'l': 18.18, 'c': 19.31},
    {'x': '2015-04-02', 'o': 19.50, 'h': 19.89, 'l': 19.00, 'c': 19.29},
    {'x': '2015-04-03', 'o': 19.13, 'h': 19.15, 'l': 18.43, 'c': 18.75},
    {'x': '2015-04-06', 'o': 18.54, 'h': 18.76, 'l': 18.27, 'c': 18.76}

// map the data
mapping = table.mapAs({'open':"o",'high': "h", 'low':"l", 'close':"c"});

// set the series
var series = chart.plot(0).ohlc(mapping);

// create scroller series with "close" values
var scrollerSeries = chart.scroller().ohlc(table.mapAs({'open':"o",'high': "h", 'low':"l", 'close':"c"}));

// change the series type

JsFiddle Playground

Please note that the range area series uses only two values from the data set, but it works because it shares the default names of data fields ("low" and "high") with Japanese candlestick and OHLC series. So, series types do not have to use the same number of fields to be convertible to each other.

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