遇到“NameError: name 'plt' is not defined”这个错误时,通常是因为在Python代码中尝试使用了plt这个名称,但没有事先导入Matplotlib库的pyplot模块,或者导入语句存在错误。以下是一些解决这个问题的步骤和注意事项: 1. 检查并导入Matplotlib的pyplot模块 首先,确保你的代码中已经包含了导入Matplotlib库pyplot模块的语句...
NameError: name 'plt' is not defined We get aNameError: name 'plt' is not defined. This is because we have imported thepyplotmodule with the nameplotbut we’re trying to use it using the nameplt. To fix this error, you can either use the name that you have used in the import st...
3 plt.ylabel('Cumulative distance (cm)') 4 plt.tight_layout() 5 plt.savefig('imgs/ex1_fig2a.eps', format='eps', dpi=300) NameError: name 'plt' is not defined I believe this is a matplotlib issue (see, e.g.,konstantint/matplotlib-venn#33). How can it be corrected?
You need to importplt, like so from matplotlib import pyplot as plt Here you can find a working example: https://github.com/marceloprates/prettymaps/blob/main/notebooks/examples.ipynb I'm still having the same issue. Here's the intro to the script: ...
在使用matplotlib库的plt.text函数时,如果出现了NameError: name ‘ax’ is not defined的错误,很可能是因为没有正确设置坐标轴对象(ax)。plt.text函数需要一个坐标轴对象作为参数,以便知道在哪个位置绘制文本。要解决这个问题,首先需要创建一个坐标轴对象。可以使用matplotlib库中的subplots函数来创建坐标轴对象。subplo...
6 df NameError: name 'pd' is not defined在网上找了好久,都没有找到解决的办法,有没有高手帮忙下?shigj123456 童生 2 import pandas as pd from matplotlib import pyplot as pltplt.rcParams['font.family'] = 'SimHei' plt.rcParams['axes.unicode_minus'] = False pd.options.display.float_format...
感觉是你有一行说明没有注释。加#再试试。'''设置词云样式 '''
使用csv数据文件在百度网盘 import pandas as pd unrate = pd.read_csv('unrate.csv') # pd.to_...
The error messagenameerror: name sns is not definedoccurs when you’re trying to use the“sns”module without importing it first or you did not install theseabornlibrary. For example: import matplotlib.pyplot as plt plt.plot([1, 2, 3, 4, 5]) ...
$ docker run -it continuumio/anaconda3:latest python -c '\ > import matplotlib; \ > import matplotlib.pyplot as plt; \ > ' Traceback (most recent call last): File "<string>", line 3, in <module> File "/opt/conda/lib/python3.6/site-packages/matplotlib/pyplot.py", line 113, in ...