{ "script" : "doc['grade'].value * 1.2" }Area Charts
This chart’s Y axis is the metrics axis. The following aggregations are available for this axis:
- Count
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The {ref}/search-aggregations-metrics-valuecount-aggregation.html[count] aggregation returns a raw count of the elements in the selected index pattern.
- Average
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This aggregation returns the {ref}/search-aggregations-metrics-avg-aggregation.html[average] of a numeric field. Select a field from the drop-down.
- Sum
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The {ref}/search-aggregations-metrics-sum-aggregation.html[sum] aggregation returns the total sum of a numeric field. Select a field from the drop-down.
- Min
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The {ref}/search-aggregations-metrics-min-aggregation.html[min] aggregation returns the minimum value of a numeric field. Select a field from the drop-down.
- Max
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The {ref}/search-aggregations-metrics-max-aggregation.html[max] aggregation returns the maximum value of a numeric field. Select a field from the drop-down.
- Unique Count
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The {ref}/search-aggregations-metrics-cardinality-aggregation.html[cardinality] aggregation returns the number of unique values in a field. Select a field from the drop-down.
- Percentiles
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The {ref}/search-aggregations-metrics-percentile-aggregation.html[percentile] aggregation divides the values in a numeric field into percentile bands that you specify. Select a field from the drop-down, then specify one or more ranges in the Percentiles fields. Click the X to remove a percentile field. Click + Add to add a percentile field.
- Percentile Rank
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The {ref}/search-aggregations-metrics-percentile-rank-aggregation.html[percentile ranks] aggregation returns the percentile rankings for the values in the numeric field you specify. Select a numeric field from the drop-down, then specify one or more percentile rank values in the Values fields. Click the X to remove a values field. Click +Add to add a values field.
You can add an aggregation by clicking the + Add Metrics button.
For example, a chart of dates with incident counts can display dates in chronological order, or you can raise the priority of the incident-reporting aggregation to show the most active dates first. The chronological order might show a time-dependent pattern in incident count, and sorting by active dates can reveal particular outliers in your data.
You can click the Advanced link to display more customization options for your metrics or bucket aggregation:
- Exclude Pattern
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Specify a pattern in this field to exclude from the results.
- Include Pattern
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Specify a pattern in this field to include in the results.
- JSON Input
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A text field where you can add specific JSON-formatted properties to merge with the aggregation definition, as in the following example:
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Note
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In Elasticsearch releases 1.4.3 and later, this functionality requires you to enable {ref}/modules-scripting.html[dynamic Groovy scripting]. |
The availability of these options varies depending on the aggregation you choose.
Select the Options tab to change the following aspects of the chart:
- Chart Mode
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When you have multiple Y-axis aggregations defined for your chart, you can use this drop-down to affect how the aggregations display on the chart:
- stacked
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Stacks the aggregations on top of each other.
- overlap
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The aggregations overlap, with translucency indicating areas of overlap.
- wiggle
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Displays the aggregations as a streamgraph.
- percentage
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Displays each aggregation as a proportion of the total.
- silhouette
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Displays each aggregation as variance from a central line.
Checkboxes are available to enable and disable the following behaviors:
- Smooth Lines
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Check this box to curve the top boundary of the area from point to point.
- Set Y-Axis Extents
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Check this box and enter values in the y-max and y-min fields to set the Y axis to specific values.
- Scale Y-Axis to Data Bounds
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The default Y axis bounds are zero and the maximum value returned in the data. Check this box to change both upper and lower bounds to match the values returned in the data.
- Show Tooltip
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Check this box to enable the display of tooltips.
- Show Legend
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Check this box to enable the display of a legend next to the chart.