1# -*- coding: utf-8 -*- 2""" 3Example beeswarm / bar chart 4""" 5import initExample ## Add path to library (just for examples; you do not need this) 6 7import pyqtgraph as pg 8from pyqtgraph.Qt import QtCore, QtGui 9import numpy as np 10 11win = pg.plot() 12win.setWindowTitle('pyqtgraph example: beeswarm') 13 14data = np.random.normal(size=(4,20)) 15data[0] += 5 16data[1] += 7 17data[2] += 5 18data[3] = 10 + data[3] * 2 19 20## Make bar graph 21#bar = pg.BarGraphItem(x=range(4), height=data.mean(axis=1), width=0.5, brush=0.4) 22#win.addItem(bar) 23 24## add scatter plots on top 25for i in range(4): 26 xvals = pg.pseudoScatter(data[i], spacing=0.4, bidir=True) * 0.2 27 win.plot(x=xvals+i, y=data[i], pen=None, symbol='o', symbolBrush=pg.intColor(i,6,maxValue=128)) 28 29## Make error bars 30err = pg.ErrorBarItem(x=np.arange(4), y=data.mean(axis=1), height=data.std(axis=1), beam=0.5, pen={'color':'w', 'width':2}) 31win.addItem(err) 32 33 34if __name__ == '__main__': 35 pg.exec() 36