PythonGCS 2018-12-13
修改python plot折线图的坐标轴刻度,这里修改为整数:
代码如下:
from matplotlib import pyplot as plt import matplotlib.ticker as ticker import numpy as np def std_plot(): overall_std = [34.369, 21.366, 16.516, 11.151] max_std = [36.769, 21.794, 14.390, 4.684] plt.figure() plt.plot(overall_std, label='average_std') plt.plot(max_std, label='max_std') plt.legend() plt.xlabel('window') plt.ylabel('std') plt.xticks(range(len(max_std))) # plt.gca().xaxis.set_major_formatter(ticker.FormatStrFormatter('%1.1f')) plt.show() std_plot()
可以发现,通过上面的方法可以自定义x轴的刻度显示为其他样式,比如根据时间显示。只需要修改为:
plt.xticks(pd.date_range(‘2014-09-01','2014-09-30'),rotation=90)#设置时间标签显示格式
如果希望保留小数点后一位,可以这样:
from matplotlib import pyplot as plt import matplotlib.ticker as ticker import numpy as np def std_plot(): overall_std = [34.369, 21.366, 16.516, 11.151] max_std = [36.769, 21.794, 14.390, 4.684] plt.figure() plt.plot(overall_std, label='average_std') plt.plot(max_std, label='max_std') plt.legend() plt.xlabel('window') plt.ylabel('std') # plt.xticks(range(len(max_std))) plt.gca().xaxis.set_major_formatter(ticker.FormatStrFormatter('%1.1f')) plt.show() std_plot()