[#BloombergLP-balm-MetricSampleGroup-2constructor-0f]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balm.adoc[balm]::xref:BloombergLP/balm/MetricSampleGroup.adoc[MetricSampleGroup]::MetricSampleGroup
:relfileprefix: ../../../
:mrdocs:

Constructors

== Synopses

Declared in `<balm_metricsample.h>`

Create an empty sample group. By default, the `records()` address is 0, `numRecords()` is 0, and the `elapsedTime()` is the default‐ constructed `bsls::TimeInterval`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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xref:BloombergLP/balm/MetricSampleGroup/2constructor-00.adoc[MetricSampleGroup]();
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[.small]#xref:BloombergLP/balm/MetricSampleGroup/2constructor-00.adoc[_» more..._]#

Create a sample group having the same (in‐core) value as the specified `original` sample group.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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xref:BloombergLP/balm/MetricSampleGroup/2constructor-03.adoc[MetricSampleGroup](xref:BloombergLP/balm/MetricSampleGroup.adoc[MetricSampleGroup] const& original);
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[.small]#xref:BloombergLP/balm/MetricSampleGroup/2constructor-03.adoc[_» more..._]#

Create a sample group from the specified records and elapsed time.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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xref:BloombergLP/balm/MetricSampleGroup/2constructor-05.adoc[MetricSampleGroup](
    xref:BloombergLP/balm/MetricRecord.adoc[MetricRecord] const* records,
    int numRecords,
    xref:BloombergLP/bsls/TimeInterval.adoc[bsls::TimeInterval] const& elapsedTime);
----

[.small]#xref:BloombergLP/balm/MetricSampleGroup/2constructor-05.adoc[_» more..._]#

== Parameters

[cols="1,4"]
|===
| Name| Description
| *original*
| sample group to copy
| *records*
| contiguous sequence of metric records (held, not owned)
| *numRecords*
| number of records in `records`
| *elapsedTime*
| duration over which the records were collected
|===


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