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<font color="#ffffff" face="helvetica, arial"> <br><big><big><strong><a href="telemetry.html"><font color="#ffffff">telemetry</font></a>.<a href="telemetry.value.html"><font color="#ffffff">value</font></a>.histogram_util</strong></big></big></font></td
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<p><tt>This is a helper module to get and manipulate histogram data.<br>
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The histogram data is the same data as is visible from "chrome://histograms".<br>
More information can be found at: chromium/src/base/metrics/histogram.h</tt></p>
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<font color="#ffffff" face="helvetica, arial"><big><strong>Modules</strong></big></font></td></tr>
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<font color="#ffffff" face="helvetica, arial"><big><strong>Functions</strong></big></font></td></tr>
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<td width="100%"><dl><dt><a name="-AddHistograms"><strong>AddHistograms</strong></a>(histogram_jsons)</dt><dd><tt>Adds histograms together. Used for aggregating data.<br>
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The parameter is a list of json serializations and the returned result is a<br>
json serialization too.<br>
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Note that the histograms to be added together are typically from different<br>
processes.</tt></dd></dl>
<dl><dt><a name="-CustomizeBrowserOptions"><strong>CustomizeBrowserOptions</strong></a>(options)</dt><dd><tt>Allows histogram collection.</tt></dd></dl>
<dl><dt><a name="-GetHistogram"><strong>GetHistogram</strong></a>(histogram_type, histogram_name, tab)</dt><dd><tt>Get a json serialization of a histogram.</tt></dd></dl>
<dl><dt><a name="-GetHistogramBucketsFromJson"><strong>GetHistogramBucketsFromJson</strong></a>(histogram_json)</dt></dl>
<dl><dt><a name="-GetHistogramBucketsFromRawValue"><strong>GetHistogramBucketsFromRawValue</strong></a>(raw_value)</dt></dl>
<dl><dt><a name="-GetHistogramCount"><strong>GetHistogramCount</strong></a>(histogram_type, histogram_name, tab)</dt><dd><tt>Get the count of events for the given histograms.</tt></dd></dl>
<dl><dt><a name="-GetHistogramSum"><strong>GetHistogramSum</strong></a>(histogram_type, histogram_name, tab)</dt><dd><tt>Get the sum of events for the given histograms.</tt></dd></dl>
<dl><dt><a name="-SubtractHistogram"><strong>SubtractHistogram</strong></a>(histogram_json, start_histogram_json)</dt><dd><tt>Subtracts a previous histogram from a histogram.<br>
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Both parameters and the returned result are json serializations.</tt></dd></dl>
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<font color="#ffffff" face="helvetica, arial"><big><strong>Data</strong></big></font></td></tr>
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<td width="100%"><strong>BROWSER_HISTOGRAM</strong> = 'browser_histogram'<br>
<strong>RENDERER_HISTOGRAM</strong> = 'renderer_histogram'</td></tr></table>
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