pycharm制作柱状图

 Bar - Bar_rotate_xaxis_label

解决标签名字过长的问题

from pyecharts import options as opts
from pyecharts.charts import Bar

c = (
    Bar()
    .add_xaxis(
        [
            "高等数学1，2",
            "C语言程序设计",
            "python程序设计",
            "大数据导论",
            "数据结构",
            "大数据与人工智能",
        ]
    )
    .add_yaxis("大一的学习效率", [10, 20, 30, 40, 50, 40])
    .add_yaxis("大二的学习效率", [20, 10, 40, 30, 40, 50])
    .set_global_opts(
        xaxis_opts=opts.AxisOpts(axislabel_opts=opts.LabelOpts(rotate=-15)),   #此行代码旋转标签的角度
        title_opts=opts.TitleOpts(title="信阳农林学院信息工程学院", subtitle="数据科学与大数据技术21-2"),
    )
    .render("bar_rotate_xaxis_label.html")
)

 

 Bar - Bar_stack0

叠层柱状图

可以求比例

from pyecharts import options as opts
from pyecharts.charts import Bar
from pyecharts.faker import Faker

c = (
    Bar()
    .add_xaxis(
        [
            "高等数学1，2",
            "C语言程序设计",
            "python程序设计",
            "大数据导论",
            "数据结构",
            "大数据与人工智能",
        ]
    )
    .add_yaxis("大一的学习效率", [10, 20, 30, 40, 50, 40],stack="stack1")  # stack="stack1" 表示同一列
    .add_yaxis("大二的学习效率", [20, 30, 50, 60, 70, 80],stack="stack1")  #
    .set_series_opts(label_opts=opts.LabelOpts(is_show=False))
    .set_global_opts(
        xaxis_opts=opts.AxisOpts(axislabel_opts=opts.LabelOpts(rotate=-15)),
        title_opts=opts.TitleOpts(title="信息工程学院学习知识所占百分比")
    )
    .render("bar_stack0.html")
)