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# Using Entity Data in Charts

To switch to using entity data in charts, replace the `data` attribute of your `vdl-chart-series` element with a named array `entity` attribute:
View Designer
Figure : 1. Chart entities in the View Designer
Code editor

    <vdl-chart>
    <vdl-chart-series entity="ChannelCost"></vdl-chart-series>
    <vdl-chart-series entity="ChannelProb"></vdl-chart-series>
    </vdl-chart>

This produces:
Figure : 2. Using Entity Data in Charts

Optionally, you can plot y-values (`ARRAY_Y`) against x-values (`ARRAY_X`) in array entities with a matching index set using the entity and entity-x attributes:

Code editor

    <vdl-chart-series scenario="=i" entity="ARRAY_Y" entity-x="ARRAY_X"></vdl-chart-series>

Parent Topic Charts in views

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