PyQtGraph – Move Error Bar Graph
In this article we will see how we can move the error bar graph 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. Moving error bar item will move the data of it although only error bars is moved not the actual line graph.
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 moveBy method with the error bar item object
Syntax : error.moveBy(x, y)
Argument : It takes two float value as argument
Return : It returns None
Below is the implementation