Histogram

This class implements the histogram - a visualization of the distribution of numerical data.

Public Types

`void`	Histogram(const QString &name, bool loading=false)
`Background*`	background() const
`const AbstractColumn*`	binPDValues() const
`const AbstractColumn*`	binValues() const
`const AbstractColumn*`	bins() const
`QColor`	color() const override
`QMenu*`	createContextMenu() override
`int`	dataCount(Dimension) const override
`ErrorBar*`	errorBar() const
`void`	handleResize(double horizontalRatio, double verticalRatio, bool pageResize) override
`bool`	hasData() const override
`QIcon`	icon() const override
`bool`	indicesMinMax(const Dimension dim, double, double, int &start, int &end) const override
`Line*`	line() const
`bool`	load(XmlStreamReader *, bool preview) override
`void`	loadThemeConfig(const KConfig &) override
`double`	maximum(CartesianCoordinateSystem::Dimension) const override
`bool`	minMax(const Dimension dim, const Range< int > &indexRange, Range< double > &r, bool includeErrorBars=true) const override
`double`	minimum(CartesianCoordinateSystem::Dimension) const override
`void`	recalc() override
`void`	retransform() override
`void`	save(QXmlStreamWriter *) const override
`void`	saveThemeConfig(const KConfig &) override
`Symbol*`	symbol() const
`void`	updateLocale() override
`bool`	usingColumn(const AbstractColumn *, bool indirect) const override
`Value*`	value() const

class Histogram : public Plot 

This class implements the histogram - a visualization of the distribution of numerical data.

Ordinary, cumulative and average shifted histograms are supported as well as different normalization and binning methods.

Public Functions

virtual QIcon icon() const override: Returns an icon to be used in the project explorer.

virtual QMenu *createContextMenu() override

Return a new context menu.

The caller takes ownership of the menu.

virtual bool hasData() const override: returns true if a valid data column is set, returns false otherwise. Used in CartesianPlot to determine whether the curve needs to be taken into account when calculating the data ranges of the plot area.

Public Slots

void createDataSpreadsheet(): creates a new spreadsheet having the data with the positions and the values of the bins. the new spreadsheet is added to the current folder.