使用来自 csv 的 matplotlib 和 pandas 的 Python 图表不显示所有 x 轴标签

Question

I have to chart a data from csv somewhere from my directory. I am using python by learning some samples online. Problem is, I can't find any solution to show all x-axis labels.

import pandas as pd
import matplotlib.pyplot as plt

plt.rcParams["figure.figsize"] = [7.50, 3.50]
plt.rcParams["figure.autolayout"] = True

pathcsv = r'D:\iPython\csvfile\samplecsv2.csv'
df = pd.read_csv(pathcsv)
df.set_index('Names').plot()

plt.show()

Answer 1

you can do that by using set_xticklabels to set the names and set_xticks to show ticks for each country. Updated code is below...

import pandas as pd
import matplotlib.pyplot as plt
import numpy as np

plt.rcParams["figure.figsize"] = [7.50, 3.50]
plt.rcParams["figure.autolayout"] = True

pathcsv = r'D:\iPython\csvfile\samplecsv2.csv'
ax =df.set_index('Names').plot()
ax.set_xticks(np.arange(len(df))) #Show ticks for each country
ax.set_xticklabels(df.Names)      #Show labels as in df.Names
plt.show()

Output graph