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179 lines
5.1 KiB
Plaintext
179 lines
5.1 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/qgsdatetimestatisticalsummary.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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class QgsDateTimeStatisticalSummary
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{
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%Docstring(signature="appended")
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Calculator for summary statistics and aggregates for a list of datetimes.
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Statistics are calculated by calling :py:func:`~calculate` and passing a list of datetimes. The
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individual statistics can then be retrieved using the associated methods. Note that not all statistics
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are calculated by default. Statistics which require slower computations are only calculated by
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specifying the statistic in the constructor or via :py:func:`~setStatistics`.
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.. versionadded:: 2.16
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%End
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%TypeHeaderCode
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#include "qgsdatetimestatisticalsummary.h"
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%End
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public:
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enum Statistic
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{
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Count,
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CountDistinct,
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CountMissing,
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Min,
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Max,
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Range,
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All,
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};
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typedef QFlags<QgsDateTimeStatisticalSummary::Statistic> Statistics;
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QgsDateTimeStatisticalSummary( QgsDateTimeStatisticalSummary::Statistics stats = All );
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%Docstring
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Constructor for QgsDateTimeStatisticalSummary
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:param stats: flags for statistics to calculate
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%End
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Statistics statistics() const;
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%Docstring
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Returns flags which specify which statistics will be calculated. Some statistics
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are always calculated (e.g., count).
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.. seealso:: :py:func:`setStatistics`
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%End
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void setStatistics( Statistics stats );
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%Docstring
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Sets flags which specify which statistics will be calculated. Some statistics
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are always calculated (e.g., count).
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:param stats: flags for statistics to calculate
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.. seealso:: :py:func:`statistics`
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%End
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void reset();
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%Docstring
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Resets the calculated values
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%End
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void calculate( const QVariantList &values );
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%Docstring
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Calculates summary statistics for a list of variants. Any non-datetime variants will be
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ignored.
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:param values: list of variants
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.. seealso:: :py:func:`addValue`
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%End
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void addValue( const QVariant &value );
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%Docstring
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Adds a single datetime to the statistics calculation. Calling this method
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allows datetimes to be added to the calculation one at a time. For large
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quantities of dates this may be more efficient then first adding all the
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variants to a list and calling :py:func:`~QgsDateTimeStatisticalSummary.calculate`.
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:param value: datetime to add. Any non-datetime variants will be ignored.
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.. note::
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call :py:func:`~QgsDateTimeStatisticalSummary.reset` before adding the first datetime using this method
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to clear the results from any previous calculations
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.. note::
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:py:func:`~QgsDateTimeStatisticalSummary.finalize` must be called after adding the final value and before
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retrieving calculated statistics.
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.. seealso:: :py:func:`calculate`
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.. seealso:: :py:func:`finalize`
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%End
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void finalize();
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%Docstring
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Must be called after adding all datetimes with :py:func:`~QgsDateTimeStatisticalSummary.addValue` and before retrieving
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any calculated datetime statistics.
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.. seealso:: :py:func:`addValue`
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%End
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QVariant statistic( QgsDateTimeStatisticalSummary::Statistic stat ) const;
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%Docstring
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Returns the value of a specified statistic
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:param stat: statistic to return
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:return: calculated value of statistic
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%End
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int count() const;
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%Docstring
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Returns the calculated count of values.
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%End
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int countDistinct() const;
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%Docstring
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Returns the number of distinct datetime values.
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%End
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QSet< QDateTime > distinctValues() const;
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%Docstring
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Returns the set of distinct datetime values.
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%End
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int countMissing() const;
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%Docstring
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Returns the number of missing (null) datetime values.
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%End
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QDateTime min() const;
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%Docstring
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Returns the minimum (earliest) non-null datetime value.
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%End
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QDateTime max() const;
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%Docstring
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Returns the maximum (latest) non-null datetime value.
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%End
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QgsInterval range() const;
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%Docstring
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Returns the range (interval between earliest and latest non-null datetime values).
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%End
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static QString displayName( QgsDateTimeStatisticalSummary::Statistic statistic );
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%Docstring
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Returns the friendly display name for a statistic
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:param statistic: statistic to return name for
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%End
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};
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QFlags<QgsDateTimeStatisticalSummary::Statistic> operator|(QgsDateTimeStatisticalSummary::Statistic f1, QFlags<QgsDateTimeStatisticalSummary::Statistic> f2);
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/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/qgsdatetimestatisticalsummary.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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