python折线图包括设置横纵坐标字体大小刻度间隔等

直径上代码

#!usr/bin/env python
# -*- coding:utf-8 -*-
"""
@author: Suyue
@file: dryzhexian.py
@time: 2024/05/16
@desc:
"""
import pandas as pd
import matplotlib
import matplotlib.pyplot as plt
import matplotlib.ticker as ticker
from matplotlib.pyplot import MultipleLocator
matplotlib.rc("font",family='YouYuan')

# 第一张图
input_file = 'I:/soil/dryzhexian/乌审旗_class.xlsx'

# 设置图片大小，精度
plt.figure(figsize = (16,8),dpi = 100)
df = pd.read_excel(input_file)
x = df['time']
y1 = df['PA']
y2 = df['SPI']
y3 = df['MI']
y4 = df['MCI']
y5 = df['Rsm']

# 让x，y刻度线向内
plt.rcParams['xtick.direction'] = 'in'
plt.rcParams['ytick.direction'] = 'in'
plt.title('乌审旗干旱',fontsize=14)
plt.xlabel('时间',fontsize=14)
plt.ylabel('干旱等级',fontsize=14)

# 创建折线图
plt.plot(x,y1)
plt.plot(x,y2)
plt.plot(x,y3)
plt.plot(x,y4)
plt.plot(x,y5)
# 设置背景网格线为虚线
plt.grid(linestyle="--")
# 设置横轴标记竖着写，字体大小
plt.xticks(x, x, rotation=270)
#刻度值字体大小设置（x轴和y轴同时设置）
plt.tick_params(labelsize=14)
# 设置刻度间隔，x以每5显示，y以每1显示
x_major_locator=MultipleLocator(5)
y_major_locator=MultipleLocator(1)
ax = plt.gca()
ax.xaxis.set_major_locator(x_major_locator)
ax.yaxis.set_major_locator(y_major_locator)

# 加图释
plt.legend(['PA','SPI','MI','MCI','Rsm'],fontsize=14)
# 出图
plt.show()