在Seaborn绘制山脊图时遇到麻烦

时间:2019-03-07 06:02:39

标签: python pandas seaborn

我有一个数据框hour_dist,它显示客户到特定位置的时间。

hour_dist.sample(5)

        Location            Hour
88131   1233000000000000    21
111274  1233000000000000    0
81126   2991000000000000    23
104181  1232000000000000    22
55719   1232000000000000    15

我正在尝试使用Seaborn绘制此数据以可视化岭图(https://seaborn.pydata.org/examples/kde_ridgeplot.html)。

它实际上应该显示每个位置的小时分布。这是一个看起来像的例子:

enter image description here

对于hour_dist,我一直在尝试在y轴上的位置和在x轴上的小时进行绘制,但均未成功。

1 个答案:

答案 0 :(得分:0)

对我来说,将g更改为Location,将x更改为Hour,但是如果有许多唯一的Location值,则应该有许多具有真实数据的图:

import numpy as np
import pandas as pd
import seaborn as sns

import matplotlib.pyplot as plt
sns.set(style="white", rc={"axes.facecolor": (0, 0, 0, 0)})


# Initialize the FacetGrid object
pal = sns.cubehelix_palette(10, rot=-.25, light=.7)
g = sns.FacetGrid(df, row="Location", hue="Location", aspect=15, height=.5, palette=pal)

如果需要按百分比绘制:

#df['pct'] = df['Location'].div(df.groupby('Hour')['Location'].transform('sum'))
#g = sns.FacetGrid(df, row="pct", hue="pct", aspect=15, height=.5, palette=pal)


# Draw the densities in a few steps
g.map(sns.kdeplot, "Hour", clip_on=False, shade=True, alpha=1, lw=1.5, bw=.2)
g.map(sns.kdeplot, "Hour", clip_on=False, color="w", lw=2, bw=.2)
g.map(plt.axhline, y=0, lw=2, clip_on=False)


# Define and use a simple function to label the plot in axes coordinates
def label(x, color, label):
    ax = plt.gca()
    ax.text(0, .2, label, fontweight="bold", color=color,
            ha="left", va="center", transform=ax.transAxes)


g.map(label, "Hour")

# Set the subplots to overlap
g.fig.subplots_adjust(hspace=-.25)

# Remove axes details that don't play well with overlap
g.set_titles("")
g.set(yticks=[])
g.despine(bottom=True, left=True)