StatsWidget: Display a set of statictics for plot items

Module containing widgets displaying stats from items of a plot.

StatsWidget class

class StatsWidget(parent=None, plot=None, stats=None)

Bases: PyQt5.QtWidgets.QWidget

Widget displaying a set of Stat to be displayed on a StatsTable and to be apply on items contained in the Plot Also contains options to:

• compute statistics on all the data or on visible data only

• show statistics of all items or only the active one

Parameters

• parent (QWidget) – Qt parent

• plot (Union[PlotWidget,SceneWidget]) – The plot containing items on which we want statistics.

• stats (StatsHandler) – Set the statistics to be displayed and how to format them using

sigVisibilityChanged

Signal emitted when the visibility of this widget changes.

It Provides the visibility of the widget.

showEvent(self, QShowEvent)

hideEvent(self, QHideEvent)

setStats(statsHandler)

Set which stats to display and the associated formatting.

Parameters

statsHandler (StatsHandler) – Set the statistics to be displayed and how to format them using

setPlot(plot)

Define the plot to interact with

Parameters

plot (Union[PlotWidget,SceneWidget,None]) – The plot containing the items on which statistics are applied

getPlot()

Returns the plot attached to this widget

Return type

Union[PlotWidget,SceneWidget,None]

setDisplayOnlyActiveItem(displayOnlyActItem)

Toggle display off all items or only the active/selected one

Parameters

displayOnlyActItem (bool) – True if we want to only show active item

setStatsOnVisibleData(b)

Toggle computation of statistics on whole data or only visible ones.

Warning

When visible data is activated we will process to a simple filtering of visible data by the user. The filtering is a simple data sub-sampling. No interpolation is made to fit data to boundaries.

Parameters

b (bool) – True if we want to apply statistics only on visible data

getUpdateMode()

Returns update mode (See setUpdateMode()).

Returns

update mode

Return type

UpdateMode

setUpdateMode(mode)

Set the way to update the displayed statistics.

Parameters

mode (Union[str,UpdateMode]) – mode requested for update

BasicStatsWidget class

class BasicStatsWidget(parent=None, plot=None)

Bases: silx.gui.plot.StatsWidget.StatsWidget

Widget defining a simple set of Stat to be displayed on a StatsWidget.

Parameters

• parent (QWidget) – Qt parent

• plot (PlotWidget) – The plot containing items on which we want statistics.

• stats (StatsHandler) – Set the statistics to be displayed and how to format them using

StatsTable class

class StatsTable(parent=None, plot=None)

Bases: silx.gui.plot.StatsWidget._StatsWidgetBase, silx.gui.widgets.TableWidget.TableWidget

TableWidget displaying for each items contained by the Plot some information:

• legend

• minimal value

• maximal value

• standard deviation (std)

Parameters

• parent (QWidget) – The widget’s parent.

• plot (Union[PlotWidget,SceneWidget]) – PlotWidget or SceneWidget instance on which to operate

sigUpdateModeChanged

Signal emitted when the update mode changed

setStats(statsHandler)

Set which stats to display and the associated formatting.

Parameters

statsHandler (StatsHandler) – Set the statistics to be displayed and how to format them using

setPlot(plot)

Define the plot to interact with

Parameters

plot (Union[PlotWidget,SceneWidget,None]) – The plot containing the items on which statistics are applied

clear()

Define the plot to interact with

Parameters

plot (Union[PlotWidget,SceneWidget,None]) – The plot containing the items on which statistics are applied

setDisplayOnlyActiveItem(displayOnlyActItem)

Toggle display off all items or only the active/selected one

Parameters

displayOnlyActItem (bool) – True if we want to only show active item

BasicLineStatsWidget class

class BasicLineStatsWidget(parent=None, plot=None, kind='curve', stats=<silx.gui.plot.stats.statshandler.StatsHandler object>, statsOnVisibleData=False)

Bases: PyQt5.QtWidgets.QWidget

Widget defining a simple set of Stat to be displayed on a LineStatsWidget.

Parameters

• parent (QWidget) – Qt parent

• plot (Union[PlotWidget,SceneWidget]) – The plot containing items on which we want statistics.

• kind (str) – the kind of plotitems we want to display

• stats (StatsHandler) – Set the statistics to be displayed and how to format them using

• statsOnVisibleData (bool) – compute statistics for the whole data or only visible ones.

setUpdateMode(mode)

Set the way to update the displayed statistics.

Parameters

mode (Union[str,UpdateMode]) – mode requested for update

getUpdateMode()

Returns update mode (See setUpdateMode()).

Returns

update mode

Return type

UpdateMode

setPlot(plot)

Define the plot to interact with

Parameters

plot (Union[PlotWidget,SceneWidget,None]) – The plot containing the items on which statistics are applied

setStats(statsHandler)

Set which stats to display and the associated formatting.

Parameters

statsHandler (StatsHandler) – Set the statistics to be displayed and how to format them using

setKind(kind)

Change the kind of active item to display :param str kind: kind of item to display information for (‘curve’ …)

getKind()

Returns

kind of item we want to compute statistic for :rtype: str

setStatsOnVisibleData(b)

Toggle computation of statistics on whole data or only visible ones.

Warning

When visible data is activated we will process to a simple filtering of visible data by the user. The filtering is a simple data sub-sampling. No interpolation is made to fit data to boundaries.

Parameters

b (bool) – True if we want to apply statistics only on visible data

showRadioButtons(show)

show / hide the QRadioButtons

Parameters

show (bool) – if True make RadioButton visible

BasicGridStatsWidget class

class BasicGridStatsWidget(parent=None, plot=None, kind='curve', stats=<silx.gui.plot.stats.statshandler.StatsHandler object>, statsOnVisibleData=False)

Bases: PyQt5.QtWidgets.QWidget

pymca design like widget

Parameters

• parent (QWidget) – Qt parent

• plot (Union[PlotWidget,SceneWidget]) – The plot containing items on which we want statistics.

• stats (StatsHandler) – Set the statistics to be displayed and how to format them using

• kind (str) – the kind of plotitems we want to display

• statsOnVisibleData (bool) – compute statistics for the whole data or only visible ones.

• statsPerLine (int) – number of statistic to be displayed per line

setUpdateMode(mode)

Set the way to update the displayed statistics.

Parameters

mode (Union[str,UpdateMode]) – mode requested for update

getUpdateMode()

Returns update mode (See setUpdateMode()).

Returns

update mode

Return type

UpdateMode

setPlot(plot)

Define the plot to interact with

Parameters

plot (Union[PlotWidget,SceneWidget,None]) – The plot containing the items on which statistics are applied

setStats(statsHandler)

Set which stats to display and the associated formatting.

Parameters

statsHandler (StatsHandler) – Set the statistics to be displayed and how to format them using

setKind(kind)

Change the kind of active item to display :param str kind: kind of item to display information for (‘curve’ …)

getKind()

Returns

kind of item we want to compute statistic for :rtype: str

setStatsOnVisibleData(b)

Toggle computation of statistics on whole data or only visible ones.

Warning

When visible data is activated we will process to a simple filtering of visible data by the user. The filtering is a simple data sub-sampling. No interpolation is made to fit data to boundaries.

Parameters

b (bool) – True if we want to apply statistics only on visible data

showRadioButtons(show)

show / hide the QRadioButtons

Parameters

show (bool) – if True make RadioButton visible