如何在matplotlib条形图后面绘制网格线

Question

x = ['01-02', '02-02', '03-02', '04-02', '05-02']
y = [2, 2, 3, 7, 2]

fig, ax = plt.subplots(1, 1)
ax.bar(range(len(y)), y, width=0.3,align='center',color='skyblue')
plt.xticks(range(len(y)), x, size='small')
plt.savefig('/home/user/graphimages/foo2.png')
plt.close()

我想在条形图后面画网格线（x和y）

Answer 1

plt.grid(True, color = "grey", linewidth = "1.4", linestyle = "-.")

这对我来说很有效，网格线将是灰色边框颜色，如果你愿意，可以将边框设计更改为linestyle = ".." 像这样

plt.grid(True, color = "grey", linewidth = "1.4", linestyle = "..")

总结整个代码块：

fig, ax = plt.subplots(1, 1)
ax.bar(range(len(y)), y, width=0.3,align='center',color='skyblue')
plt.xticks(range(len(y)), x, size='small')
plt.grid(True, color = "grey", linewidth = "1.4", linestyle = "-.")
plt.savefig('/home/user/graphimages/foo2.png')
plt.close()