我正在寻找matplotlib中以下情节的散景版(使用vbar):
import pandas as pd
%matplotlib inline
data = [
['201720', 'cat1', 20],
['201720', 'cat2', 30],
['201720', 'cat3', 40],
['201721', 'cat1', 20],
['201721', 'cat2', 0],
['201721', 'cat3', 40],
['201722', 'cat1', 50],
['201722', 'cat2', 60],
['201722', 'cat3', 10],
]
df = pd.DataFrame(data, columns=['week', 'category', 'count'])
pt = df.pivot('week', 'category', 'count')
pt.plot(kind='bar', stacked=True)
我试过谷歌搜索,但我找不到一个简单的解决方案。
答案 0 :(得分:1)
我认为以下代码是我现在能做的最好的代码:
from bokeh.plotting import figure, output_file, show
from bokeh.models import ColumnDataSource
from bokeh.models.ranges import FactorRange
import pandas as pd
data = [
['201720', 'cat1', 20],
['201720', 'cat2', 30],
['201720', 'cat3', 40],
['201721', 'cat1', 20],
['201721', 'cat2', 0],
['201721', 'cat3', 40],
['201722', 'cat1', 50],
['201722', 'cat2', 60],
['201722', 'cat3', 10],
]
df = pd.DataFrame(data, columns=['week', 'category', 'count'])
pt = df.pivot('week', 'category', 'count')
pt = pt.cumsum(axis=1)
output_file("lines.html", title='Dashboard')
p = figure(title="count",
x_axis_label='week', y_axis_label='category',
x_range = FactorRange(factors=list(pt.index)),
plot_height=300, plot_width=500)
p.vbar(x=pt.index, bottom=0, top=pt.cat1, width=0.2, color='red', legend='cat1')
p.vbar(x=pt.index, bottom=pt.cat1, top=pt.cat2, width=0.2, color='blue', legend='cat2')
p.vbar(x=pt.index, bottom=pt.cat2, top=pt.cat3, width=0.2, color='green', legend='cat3')
show(p)
结果情节如下:
包括vbar(),Bokeh绘图方法似乎不支持'矢量化输入'或者我可能缺少某些东西。这真的是最简单的方法吗?