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Backports PR #9425 **Commit 1:** adding stepped line to line and area charts * Original sha:be913a4a31* Authored by ppisljar <peter.pisljar@gmail.com> on 2016-12-09T14:59:16Z **Commit 2:** fixing based on Thomas' review * Original sha:1a285e35d1* Authored by ppisljar <peter.pisljar@gmail.com> on 2016-12-14T08:27:50Z **Commit 3:** updating docs * Original sha:03a0e9f439* Authored by ppisljar <peter.pisljar@gmail.com> on 2016-12-19T11:04:04Z **Commit 4:** fixing based on Brandons review * Original sha:2f86249f5e* Authored by ppisljar <peter.pisljar@gmail.com> on 2016-12-23T15:04:34Z
76 lines
4.4 KiB
Text
76 lines
4.4 KiB
Text
[[area-chart]]
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== Area Charts
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This chart's Y axis is the _metrics_ axis. The following aggregations are available for this axis:
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*Count*:: The {es-ref}search-aggregations-metrics-valuecount-aggregation.html[_count_] aggregation returns a raw count of
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the elements in the selected index pattern.
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*Average*:: This aggregation returns the {es-ref}search-aggregations-metrics-avg-aggregation.html[_average_] of a numeric
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field. Select a field from the drop-down.
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*Sum*:: The {es-ref}search-aggregations-metrics-sum-aggregation.html[_sum_] aggregation returns the total sum of a numeric
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field. Select a field from the drop-down.
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*Min*:: The {es-ref}search-aggregations-metrics-min-aggregation.html[_min_] aggregation returns the minimum value of a
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numeric field. Select a field from the drop-down.
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*Max*:: The {es-ref}search-aggregations-metrics-max-aggregation.html[_max_] aggregation returns the maximum value of a
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numeric field. Select a field from the drop-down.
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*Unique Count*:: The {es-ref}search-aggregations-metrics-cardinality-aggregation.html[_cardinality_] aggregation returns
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the number of unique values in a field. Select a field from the drop-down.
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*Percentiles*:: The {es-ref}search-aggregations-metrics-percentile-aggregation.html[_percentile_] aggregation divides the
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values in a numeric field into percentile bands that you specify. Select a field from the drop-down, then specify one
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or more ranges in the *Percentiles* fields. Click the *X* to remove a percentile field. Click *+ Add* to add a
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percentile field.
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*Percentile Rank*:: The {es-ref}search-aggregations-metrics-percentile-rank-aggregation.html[_percentile ranks_]
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aggregation returns the percentile rankings for the values in the numeric field you specify. Select a numeric field
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from the drop-down, then specify one or more percentile rank values in the *Values* fields. Click the *X* to remove a
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values field. Click *+Add* to add a values field.
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You can add an aggregation by clicking the *+ Add Metrics* button.
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include::x-axis-aggs.asciidoc[]
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For example, a chart of dates with incident counts can display dates in chronological order, or you can raise the
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priority of the incident-reporting aggregation to show the most active dates first. The chronological order might show
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a time-dependent pattern in incident count, and sorting by active dates can reveal particular outliers in your data.
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include::color-picker.asciidoc[]
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You can click the *Advanced* link to display more customization options for your metrics or bucket aggregation:
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*Exclude Pattern*:: Specify a pattern in this field to exclude from the results.
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*Include Pattern*:: Specify a pattern in this field to include in the results.
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*JSON Input*:: A text field where you can add specific JSON-formatted properties to merge with the aggregation
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definition, as in the following example:
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[source,shell]
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{ "script" : "doc['grade'].value * 1.2" }
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NOTE: In Elasticsearch releases 1.4.3 and later, this functionality requires you to enable
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{es-ref}modules-scripting.html[dynamic Groovy scripting].
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The availability of these options varies depending on the aggregation you choose.
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Select the *Options* tab to change the following aspects of the chart:
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*Chart Mode*:: When you have multiple Y-axis aggregations defined for your chart, you can use this drop-down to affect
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how the aggregations display on the chart:
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_stacked_:: Stacks the aggregations on top of each other.
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_overlap_:: The aggregations overlap, with translucency indicating areas of overlap.
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_wiggle_:: Displays the aggregations as a https://en.wikipedia.org/wiki/Streamgraph[streamgraph].
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_percentage_:: Displays each aggregation as a proportion of the total.
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_silhouette_:: Displays each aggregation as variance from a central line.
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Checkboxes are available to enable and disable the following behaviors:
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*Line Mode*:: You can choose between straight line, smoothed line and stepped line.
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*Set Y-Axis Extents*:: Check this box and enter values in the *y-max* and *y-min* fields to set the Y axis to specific
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values.
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*Scale Y-Axis to Data Bounds*:: The default Y axis bounds are zero and the maximum value returned in the data. Check
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this box to change both upper and lower bounds to match the values returned in the data.
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*Order buckets by descending sum*:: Check this box to enforce sorting of buckets by descending sum in the visualization
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*Show Tooltip*:: Check this box to enable the display of tooltips.
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[float]
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[[area-viewing-detailed-information]]
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==== Viewing Detailed Information
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include::visualization-raw-data.asciidoc[]
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