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Bar

Namespace: DISPLIB  ·  Library: Display Library

#include <disp/bar.h>

class DISPLIB::Bar

Bar chart / histogram QWidget rendering Eigen class-limit + frequency vectors with QPainter.

Templated on the value type so callers can pass either integer or floating bin limits. Use setData to install a new dataset and updatePlot to refresh an existing chart in place; both call splitCoefficientAndExponent internally to format the tick labels with a configurable number of significant digits.

Inheritance​

Public Methods​

Bar(title, parent)​

The constructor for Bar.

setData(matClassLimitData, matClassFrequencyData, iPrecisionValue)​

Sets new data to the bar chart.

Parameters:

  • matClassLimitData : const Eigen::Matrix< T, Eigen::Dynamic, 1 > & vector input filled with class limits.

  • matClassFrequencyData : const Eigen::Matrix< int, Eigen::Dynamic, 1 > & vector input filled with class frequency to the corresponding class.

  • iPrecisionValue : int user input to determine the amount of digits of coefficient shown in the histogram.

setData(matClassLimitData, matClassFrequencyData, iPrecisionValue)​

updatePlot(matClassLimitData, matClassFrequencyData, iPrecisionValue)​

Updates the bar plot with the new data.

Parameters:

  • matClassLimitData : const Eigen::Matrix< T, Eigen::Dynamic, Eigen::Dynamic > & vector input filled with class limits.

  • matClassFrequencyData : const Eigen::Matrix< int, Eigen::Dynamic, Eigen::Dynamic > & vector input filled with class frequency to the corresponding class.

  • iPrecisionValue : int user input to determine the amount of digits of coefficient shown in the histogram.

splitCoefficientAndExponent(matClassLimitData, iClassAmount, vecCoefficientResults, vecExponentValues)​

splitCoefficientAndExponent takes in QVector value of coefficient and exponent and normalizes them.

Parameters:

  • matClassLimitData : const Eigen::Matrix< T, Eigen::Dynamic, Eigen::Dynamic > & vector input filled with values of class limits.

  • iClassAmount : int amount of classes in the histogram.

  • vecCoefficientResults : Eigen::VectorXd & vector filled with values of coefficient only.

  • vecExponentValues : Eigen::VectorXi & vector filled with values of exponent only.

Authors of this file​