Learn to draw real scatter plots using Python's third-party library openpyxl in one minute-Python Tutorial-php.cn

Learn to draw real scatter plots using Python's third-party library openpyxl in one minute

醉折花枝作酒筹

Release： 2021-04-23 09:31:49

forward

3676 people have browsed it

本篇文章给大家详细介绍一下用Python的第三方库openpyxl画真散点图的方法。有一定的参考价值，有需要的朋友可以参考一下，希望对大家有所帮助。

Learn to draw real scatter plots using Python's third-party library openpyxl in one minute

之前在博客上看见不少类似的问题，点进去一看，发现都是完全照抄的官方文档。然而官方文档的demo，画出来并不是我们想要的效果：

Learn to draw real scatter plots using Pythons third-party library openpyxl in one minute
说好的散点图，出来却是我们一般定义上的折线图。

直接上代码：

先安装openpyxl第三方库，以Windows为例，在cmd指令窗下发如下命令：

pip install openpyxl

Copy after login

Python代码如下：

"""
__author__ = &#39;伴月雎&#39;
__time__ = &#39;2021/4/21 19:15&#39;
"""
from openpyxl import Workbook
from openpyxl.chart import (
    ScatterChart,
    Reference,
    Series,
)

wb = Workbook()
ws = wb.active
rows = [
    [&#39;Size&#39;, &#39;Batch 1&#39;, &#39;Batch 2&#39;],
    [2, 40, 30],
    [3, 40, 25],
    [4, 50, 30],
    [5, 30, 25],
    [6, 25, 35],
    [7, 20, 40],
]
for row in rows:
    ws.append(row)

chart = ScatterChart()
chart.title = "Scatter Chart"
chart.style = 10
chart.x_axis.title = &#39;Size&#39;
chart.y_axis.title = &#39;Percentage&#39;

xvalues = Reference(ws, min_col=1, min_row=2, max_row=7)
for i in range(2, 4):
    values = Reference(ws, min_col=i, min_row=1, max_row=7)
    series = Series(values, xvalues, title_from_data=True)
    chart.series.append(series)
# 第一条散点
s1 = chart.series[0]
# 散点标记类型  &#39;auto&#39;, &#39;dash&#39;, &#39;triangle&#39;, &#39;square&#39;, &#39;picture&#39;, &#39;circle&#39;, &#39;dot&#39;, &#39;plus&#39;, &#39;star&#39;, &#39;diamond&#39;, &#39;x&#39;
s1.marker.symbol = "circle"
s1.marker.graphicalProperties.solidFill = "0000FF"  # Marker filling 设定标记填充的颜色
s1.marker.graphicalProperties.line.solidFill = "0000FF"  # Marker outline 标记轮廓的颜色
s1.graphicalProperties.line.noFill = True  # 关闭连线填充

# 第二条带连线的散点
s2 = chart.series[1]
s2.marker.symbol = "circle"
s2.graphicalProperties.solidFill = "FF0000"
s2.marker.graphicalProperties.line.solidFill = "FF0000"
s2.graphicalProperties.dashStyle = "dash"
s2.graphicalProperties.line.width = 1000  # width in EMUs

ws.add_chart(chart, "A10")
wb.save("scatter.xlsx")

Copy after login

效果如下：

Learn to draw real scatter plots using Pythons third-party library openpyxl in one minute

大家可以根据自己的需要做相应的扩展：

1.读取自己的Excel表格数据，替换上面代码中手动生成的数据：

        wb = openpyxl.load_workbook(&#39;D:\\data.xlsx&#39;)  # 填写你的Excel文件路径
        ws = workbook[&#39;sheet1&#39;]  # 填写你的sheet标题

Copy after login

再参考上述代码，指定你的xvalues和values(即x轴，y轴)对应的行、列位就OK了。

2.最后修改画图元素的属性值，画出你自己定制化的散点图！

相关免费学习推荐：python视频教程！

The above is the detailed content of Learn to draw real scatter plots using Python's third-party library openpyxl in one minute. For more information, please follow other related articles on the PHP Chinese website!