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我有兴趣绘制树图

树形图示例

在 Python 中制作一个最简单的方法是什么?给定正确的输入数据,是否有一个库可以生成这样的图形?

4

4 回答 4

5

您可以使用:

1)Pygal包装

这很简单: http: //www.pygal.org/en/stable/documentation/types/treemap.html

2)squarify包装

使用 matplotlib 作为绘图 API。示例代码:

import matplotlib
import matplotlib.pyplot as plt
import pandas as pd
import squarify

# qualtities plotted
# squarre area is the town surface area (superf)
# color scale is the town population in 2011 (p11_pop)

# read data from csv file
# data from CAPP opendata http://opendata.agglo-pau.fr/index.php/fiche?idQ=27
df = pd.read_excel("Customer Success New.xlsx")
df = df.set_index("location_id")
df = df[["user_id", "company_id"]]
df2 = df.sort_values(by="user_id", ascending=False)

# treemap parameters
x = 0.
y = 0.
width = 100.
height = 100.
cmap = matplotlib.cm.viridis

# color scale on the population
# min and max values without Pau
mini, maxi = df2.company_id.min(), df2.company_id.max()
norm = matplotlib.colors.Normalize(vmin=mini, vmax=maxi)
colors = [cmap(norm(value)) for value in df2.company_id]
colors[1] = "#FBFCFE"

# labels for squares
#labels = ["hab" % (label) for label in zip(df2.index, df2.user_id), df2.company_id)]
#labels[11] = "MAZERES" % (df2["user_id"]["MAZERES-LEZONS"], df2["company_id"]["MAZERES-LEZONS"])

# make plot
fig = plt.figure(figsize=(12, 10))
fig.suptitle("Population et superficie des communes de la CAPP", fontsize=20)
ax = fig.add_subplot(111, aspect="equal")
ax = squarify.plot(df2.superf, color=colors, label=labels, ax=ax, alpha=.7)
ax.set_xticks([])
ax.set_yticks([])
ax.set_title("L'aire de chaque carré est proportionnelle à la superficie de la commune\n", fontsize=14)

# color bar
# create dummy invisible image with a color map
img = plt.imshow([df2.p11_pop], cmap=cmap)
img.set_visible(False)
fig.colorbar(img, orientation="vertical", shrink=.96)

fig.text(.76, .9, "Population", fontsize=14)
fig.text(.5, 0.1,
         "Superficie totale %d km2, Population de la CAPP : %d hab" % (df2.superf.sum(), df2.p11_pop.sum()),
         fontsize=14,
         ha="center")
fig.text(.5, 0.07,
         "Source : http://opendata.agglo-pau.fr/",
         fontsize=14,
         ha="center")

plt.show()
于 2017-09-25T06:09:57.047 回答
3

这些可以用来:

我注意到 pypi 中也有一个树形图库。我没试过那个。

于 2010-07-19T16:40:26.417 回答
2

这里有几个选项:

于 2010-07-19T16:40:30.097 回答