Histogram

A description for Histogram.

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 void save(QXmlStreamWriter*) const override

Save as XML.

virtual bool load(XmlStreamReader*, bool preview) override

Load from XML.

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.