PyQtGraph – Checking if Error Bar Graph is Enabled
In this article we will see how we can check if the error bar graph is enabled in the PyQtGraph module. PyQtGraph is a graphics and user interface library for Python that provides functionality commonly required in designing and science applications. Its primary goals are to provide fast, interactive graphics for displaying data (plots, video, etc.). Error bars are graphical representations of the variability of data and used on graphs to indicate the error or uncertainty in a reported measurement. They give a general idea of how precise a measurement is, or conversely, how far from the reported value the true value might be. When the error bar item is active i.e working then it is enabled when it stopped or get deleted it become disabled.
We can create a plot window and create error bar graph on it with the help of commands given below.
# creating a pyqtgraph plot window plt = pg.plot() # creating a error bar item object error = pg.ErrorBarItem(x=x, y=y, top=top, bottom=bottom, beam=0.5)
In order to do this we use isEnabled method with the error bar item object
Syntax : error.isEnabled()
Argument : It takes no argument
Return : It returns bool
Below is the implementation: