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  • facetgrid学习

    #!/usr/bin/env python
    # -*- coding:utf-8 -*-
    import numpy as np
    import pandas as pd
    import seaborn as sns
    from scipy import stats
    import matplotlib as mpl
    import matplotlib.pyplot as plt
    
    sns.set(style="ticks")
    np.random.seed(sum(map(ord,"axis_grids")))
    tips = sns.load_dataset("tips")
    print(tips.head())
    #hiat:条形图
    g = sns.FacetGrid(tips,col="time")
    g.map(plt.hist,"tip");
    plt.show()
    a = sns.FacetGrid(tips,col="sex",hue="smoker")
    a.map(plt.scatter,"total_bill","tip",alpha=.7) #alpha:透明度
    a.add_legend();#区分出颜色分别代表什么
    plt.show()
    #点图,指定颜色等
    b = sns.FacetGrid(tips,row="smoker",col="time",margin_titles=True)
    b.map(sns.regplot,"size","total_bill",color=".1",
          fit_reg=False,x_jitter=.1)
    plt.show()
    #盒图,设置大小
    c = sns.FacetGrid(tips,col="day",size=4,aspect=.5)
    c.map(sns.barplot,"sex","total_bill")
    plt.show()
    #指定先后顺序,参数都是pandas格式,Categorical分类方法
    from pandas import Categorical
    ordered_days = tips.day.value_counts().index
    print(ordered_days)
    ordered_days = Categorical(['Thur','Fri', 'Sat', 'Sun'])
    d = sns.FacetGrid(tips,row="day",row_order=ordered_days,
                      size=1.7,aspect=4)
    d.map(sns.boxplot,"total_bill")
    plt.show()
    """
    with sns.axes_style("white"):
        g = sns.FacetGrid(tips, row="sex", col="smoker", margin_titles=True, size=2.5)
    g.map(plt.scatter, "total_bill", "tip", color="#334488", edgecolor="white", lw=.5);
    g.set_axis_labels("Total bill (US Dollars)", "Tip");
    g.set(xticks=[10, 30, 50], yticks=[2, 6, 10]);
    g.fig.subplots_adjust(wspace=.02, hspace=.02);
    #g.fig.subplots_adjust(left  = 0.125,right = 0.5,bottom = 0.1,top = 0.9, wspace=.02, hspace=.02)
    
    iris = sns.load_dataset("iris")
    g = sns.PairGrid(iris)
    g.map(plt.scatter);
    
    g = sns.PairGrid(iris, hue="species")
    g.map_diag(plt.hist)
    g.map_offdiag(plt.scatter)
    g.add_legend();
    
    g = sns.PairGrid(iris, vars=["sepal_length", "sepal_width"], hue="species")
    g.map(plt.scatter);
    
    g = sns.PairGrid(tips, hue="size", palette="GnBu_d")
    g.map(plt.scatter, s=50, edgecolor="white")
    g.add_legend();
    """
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  • 原文地址:https://www.cnblogs.com/lifengwu/p/9821612.html
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