matplotlib-画图参数-日期做x轴

#!/usr/bin/env python# -*- coding: utf-8 -*-# @Time: 2020/5/25 22:02# @Author: LaoChenimport matplotlib.pyplot as pltimport datetimedef day_list():days = [1,2,3,4,5,6,7,8,9]base_date = datetime.dateti

LaoChen_ZeroonE

1161人浏览 · 2020-05-25 22:32:42

LaoChen_ZeroonE · 2020-05-25 22:32:42 发布

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2020/5/25 22:02
# @Author  : LaoChen


import matplotlib.pyplot as plt
import datetime

def day_list():
    days = [1,2,3,4,5,6,7,8,9]
    base_date = datetime.datetime(2020,1,1)
    date_list = []
    for i in days:
        day_t = base_date + datetime.timedelta(days=i)
        date_list.append(day_t)
    return date_list

def plot_day():
    x = day_list()
    y = [2,3,5,7,9,7,5,3,2]
    #设置图片大小
    plt.figure(figsize=(16,8))
    #设置标题
    plt.title('0101')
    #折线图，参数-颜色（color = 'k'）-样式（linestyle = '--'）-标签（label = 'x'）
    plt.plot(x,y,color = 'k',linestyle = '--',label = 'x')
    #散点图
    plt.plot(x,y,'bo')
    plt.legend()
    plt.show()

plot_day()

在这里插入图片描述
常见的颜色参数：Colors

    character        description
    =============    ===============================
    ``'b'``          blue 蓝
    ``'g'``          green 绿
    ``'r'``          red 红
    ``'c'``          cyan 蓝绿
    ``'m'``          magenta 洋红
    ``'y'``          yellow 黄
    ``'k'``          black 黑
    ``'w'``          white 白
    =============    ===============================

点型参数Markers,如：marker=‘o’ 只有简写，英文描述不被识别

    character        description
    =============    ===============================
    ``'.'``          point marker
    ``','``          pixel marker
    ``'o'``          circle marker
    ``'v'``          triangle_down marker
    ``'^'``          triangle_up marker
    ``'<'``          triangle_left marker
    ``'>'``          triangle_right marker
    ``'1'``          tri_down marker
    ``'2'``          tri_up marker
    ``'3'``          tri_left marker
    ``'4'``          tri_right marker
    ``'s'``          square marker
    ``'p'``          pentagon marker
    ``'*'``          star marker
    ``'h'``          hexagon1 marker
    ``'H'``          hexagon2 marker
    ``'+'``          plus marker
    ``'x'``          x marker
    ``'D'``          diamond marker
    ``'d'``          thin_diamond marker
    ``'|'``          vline marker
    ``'_'``          hline marker
    =============    ===============================

线型参数Line Styles，linestyle=’–’

    character        description
    =============    ===============================
    ``'-'``          solid line style 实线
    ``'--'``         dashed line style 虚线
    ``'-.'``         dash-dot line style 点画线
    ``':'``          dotted line style 点线
    =============    ===============================