对鸢尾花数据集中的萼片长度、萼片宽度、花瓣长度和花瓣宽度绘制平行坐标图

一、鸢尾花数据集获取

鸢尾花数据集的四个属性sepal_length、sepal_width、petal_length、petal_width分别为萼片长度、萼片宽度、花瓣长度和花瓣宽度。

import pandas as pd

import pyecharts

from pyecharts.charts import Parallel

import pyecharts.options as opts

import numpy as np

url = 'https://www.gairuo.com/file/data/dataset/iris.data'

df = pd.read_csv(url)

二、绘制平行坐标图

dataset = df

data_ = np.array(dataset[["sepal_length", "sepal_width", "petal_length", "petal_width"]]).tolist()

parallel_axis = [{"dim": 0, "name": "萼片长度"},

{"dim": 1, "name": "萼片宽度"},

{"dim": 2, "name": "花瓣长度"},

{"dim": 3, "name": "花瓣宽度"}]

parallel = Parallel(init_opts=opts.InitOpts(width="600px", height="400px"))

parallel.add_schema(schema=parallel_axis)

parallel.add("鸢尾花平行坐标图", data=data_, linestyle_opts=opts.LineStyleOpts(width=4, opacity=0.5))

parallel.render('iris.html')